package org.schabi.newpipe.extractor.stream; import org.schabi.newpipe.extractor.Info; import org.schabi.newpipe.extractor.InfoItem; import org.schabi.newpipe.extractor.exceptions.ContentNotAvailableException; import org.schabi.newpipe.extractor.exceptions.ExtractionException; import org.schabi.newpipe.extractor.utils.DashMpdParser; import java.util.List; import java.util.Vector; /* * Created by Christian Schabesberger on 26.08.15. * * Copyright (C) Christian Schabesberger 2016 * StreamInfo.java is part of NewPipe. * * NewPipe 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. * * NewPipe 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 NewPipe. If not, see . */ /** * Info object for opened videos, ie the video ready to play. */ @SuppressWarnings("WeakerAccess") public class StreamInfo extends Info { public static class StreamExtractException extends ExtractionException { StreamExtractException(String message) { super(message); } } public StreamInfo() { } /** * Fills out the video info fields which are common to all services. * Probably needs to be overridden by subclasses */ public static StreamInfo getVideoInfo(StreamExtractor extractor) throws ExtractionException { StreamInfo streamInfo = new StreamInfo(); try { streamInfo = extractImportantData(streamInfo, extractor); streamInfo = extractStreams(streamInfo, extractor); streamInfo = extractOptionalData(streamInfo, extractor); } catch (ExtractionException e) { // Currently YouTube does not distinguish between age restricted videos and videos blocked // by country. This means that during the initialisation of the extractor, the extractor // will assume that a video is age restricted while in reality it it blocked by country. // // We will now detect whether the video is blocked by country or not. String errorMsg = extractor.getErrorMessage(); if (errorMsg != null) { throw new ContentNotAvailableException(errorMsg); } else { throw e; } } return streamInfo; } private static StreamInfo extractImportantData(StreamInfo streamInfo, StreamExtractor extractor) throws ExtractionException { /* ---- important data, withoug the video can't be displayed goes here: ---- */ // if one of these is not available an exception is meant to be thrown directly into the frontend. streamInfo.service_id = extractor.getServiceId(); streamInfo.url = extractor.getUrl(); streamInfo.stream_type = extractor.getStreamType(); streamInfo.id = extractor.getId(); streamInfo.name = extractor.getTitle(); streamInfo.age_limit = extractor.getAgeLimit(); if ((streamInfo.stream_type == StreamType.NONE) || (streamInfo.url == null || streamInfo.url.isEmpty()) || (streamInfo.id == null || streamInfo.id.isEmpty()) || (streamInfo.name == null /* streamInfo.title can be empty of course */) || (streamInfo.age_limit == -1)) { throw new ExtractionException("Some important stream information was not given."); } return streamInfo; } private static StreamInfo extractStreams(StreamInfo streamInfo, StreamExtractor extractor) throws ExtractionException { /* ---- stream extraction goes here ---- */ // At least one type of stream has to be available, // otherwise an exception will be thrown directly into the frontend. try { streamInfo.dashMpdUrl = extractor.getDashMpdUrl(); } catch (Exception e) { streamInfo.addException(new ExtractionException("Couldn't get Dash manifest", e)); } /* Load and extract audio */ try { streamInfo.audio_streams = extractor.getAudioStreams(); } catch (Exception e) { streamInfo.addException(new ExtractionException("Couldn't get audio streams", e)); } /* Extract video stream url*/ try { streamInfo.video_streams = extractor.getVideoStreams(); } catch (Exception e) { streamInfo.addException(new ExtractionException("Couldn't get video streams", e)); } /* Extract video only stream url*/ try { streamInfo.video_only_streams = extractor.getVideoOnlyStreams(); } catch (Exception e) { streamInfo.addException(new ExtractionException("Couldn't get video only streams", e)); } // Lists can be null if a exception was thrown during extraction if (streamInfo.video_streams == null) streamInfo.video_streams = new Vector<>(); if (streamInfo.video_only_streams == null) streamInfo.video_only_streams = new Vector<>(); if (streamInfo.audio_streams == null) streamInfo.audio_streams = new Vector<>(); if (streamInfo.dashMpdUrl != null && !streamInfo.dashMpdUrl.isEmpty()) { try { // Will try to find in the dash manifest for any stream that the ItagItem has (by the id), // it has video, video only and audio streams and will only add to the list if it don't // find a similar stream in the respective lists (calling Stream#equalStats). DashMpdParser.getStreams(streamInfo); } catch (Exception e) { streamInfo.addException(new ExtractionException("Couldn't get streams from dash mpd", e)); } } // either dash_mpd audio_only or video has to be available, otherwise we didn't get a stream, // and therefore failed. (Since video_only_streams are just optional they don't caunt). if ((streamInfo.video_streams == null || streamInfo.video_streams.isEmpty()) && (streamInfo.audio_streams == null || streamInfo.audio_streams.isEmpty()) && (streamInfo.dashMpdUrl == null || streamInfo.dashMpdUrl.isEmpty())) { throw new StreamExtractException( "Could not get any stream. See error variable to get further details."); } return streamInfo; } private static StreamInfo extractOptionalData(StreamInfo streamInfo, StreamExtractor extractor) { /* ---- optional data goes here: ---- */ // If one of these fails, the frontend needs to handle that they are not available. // Exceptions are therefore not thrown into the frontend, but stored into the error List, // so the frontend can afterwards check where errors happened. try { streamInfo.thumbnail_url = extractor.getThumbnailUrl(); } catch (Exception e) { streamInfo.addException(e); } try { streamInfo.duration = extractor.getLength(); } catch (Exception e) { streamInfo.addException(e); } try { streamInfo.uploader = extractor.getUploader(); } catch (Exception e) { streamInfo.addException(e); } try { streamInfo.channel_url = extractor.getChannelUrl(); } catch (Exception e) { streamInfo.addException(e); } try { streamInfo.description = extractor.getDescription(); } catch (Exception e) { streamInfo.addException(e); } try { streamInfo.view_count = extractor.getViewCount(); } catch (Exception e) { streamInfo.addException(e); } try { streamInfo.upload_date = extractor.getUploadDate(); } catch (Exception e) { streamInfo.addException(e); } try { streamInfo.uploader_thumbnail_url = extractor.getUploaderThumbnailUrl(); } catch (Exception e) { streamInfo.addException(e); } try { streamInfo.start_position = extractor.getTimeStamp(); } catch (Exception e) { streamInfo.addException(e); } try { streamInfo.average_rating = extractor.getAverageRating(); } catch (Exception e) { streamInfo.addException(e); } try { streamInfo.like_count = extractor.getLikeCount(); } catch (Exception e) { streamInfo.addException(e); } try { streamInfo.dislike_count = extractor.getDislikeCount(); } catch (Exception e) { streamInfo.addException(e); } try { StreamInfoItemCollector c = new StreamInfoItemCollector(extractor.getServiceId()); StreamInfoItemExtractor nextVideo = extractor.getNextVideo(); c.commit(nextVideo); if (c.getItemList().size() != 0) { streamInfo.next_video = (StreamInfoItem) c.getItemList().get(0); } streamInfo.errors.addAll(c.getErrors()); } catch (Exception e) { streamInfo.addException(e); } try { // get related videos StreamInfoItemCollector c = extractor.getRelatedVideos(); streamInfo.related_streams = c.getItemList(); streamInfo.errors.addAll(c.getErrors()); } catch (Exception e) { streamInfo.addException(e); } return streamInfo; } public void addException(Exception e) { errors.add(e); } public StreamType stream_type; public String uploader; public String thumbnail_url; public String upload_date; public long view_count = -1; public String uploader_thumbnail_url; public String channel_url; public String description; public List video_streams; public List audio_streams; public List video_only_streams; // video streams provided by the dash mpd do not need to be provided as VideoStream. // Later on this will also aplly to audio streams. Since dash mpd is standarized, // crawling such a file is not service dependent. Therefore getting audio only streams by yust // providing the dash mpd fille will be possible in the future. public String dashMpdUrl; public int duration = -1; public int age_limit = -1; public int like_count = -1; public int dislike_count = -1; public String average_rating; public StreamInfoItem next_video; public List related_streams = new Vector<>(); //in seconds. some metadata is not passed using a StreamInfo object! public int start_position = 0; }