119 lines
5.3 KiB
Java
119 lines
5.3 KiB
Java
package org.schabi.newpipe.extractor.utils;
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import org.schabi.newpipe.extractor.Downloader;
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import org.schabi.newpipe.extractor.MediaFormat;
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import org.schabi.newpipe.extractor.NewPipe;
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import org.schabi.newpipe.extractor.exceptions.ParsingException;
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import org.schabi.newpipe.extractor.exceptions.ReCaptchaException;
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import org.schabi.newpipe.extractor.services.youtube.ItagItem;
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import org.schabi.newpipe.extractor.stream.AudioStream;
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import org.schabi.newpipe.extractor.stream.Stream;
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import org.schabi.newpipe.extractor.stream.StreamInfo;
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import org.schabi.newpipe.extractor.stream.VideoStream;
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import org.w3c.dom.Document;
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import org.w3c.dom.Element;
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import org.w3c.dom.NodeList;
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import javax.xml.parsers.DocumentBuilder;
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import javax.xml.parsers.DocumentBuilderFactory;
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import java.io.ByteArrayInputStream;
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import java.io.IOException;
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import java.io.InputStream;
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/*
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* Created by Christian Schabesberger on 02.02.16.
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*
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* Copyright (C) Christian Schabesberger 2016 <chris.schabesberger@mailbox.org>
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* DashMpdParser.java is part of NewPipe.
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*
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* NewPipe 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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*
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* NewPipe 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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*
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* You should have received a copy of the GNU General Public License
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* along with NewPipe. If not, see <http://www.gnu.org/licenses/>.
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*/
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public class DashMpdParser {
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private DashMpdParser() {
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}
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public static class DashMpdParsingException extends ParsingException {
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DashMpdParsingException(String message, Exception e) {
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super(message, e);
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}
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}
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/**
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* Will try to download (using {@link StreamInfo#dashMpdUrl}) and parse the dash manifest,
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* then it will search for any stream that the ItagItem has (by the id).
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* <p>
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* It has video, video only and audio streams and will only add to the list if it don't
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* find a similar stream in the respective lists (calling {@link Stream#equalStats}).
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*
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* @param streamInfo where the parsed streams will be added
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*/
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public static void getStreams(StreamInfo streamInfo) throws DashMpdParsingException, ReCaptchaException {
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String dashDoc;
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Downloader downloader = NewPipe.getDownloader();
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try {
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dashDoc = downloader.download(streamInfo.getDashMpdUrl());
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} catch (IOException ioe) {
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throw new DashMpdParsingException("Could not get dash mpd: " + streamInfo.getDashMpdUrl(), ioe);
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} catch (ReCaptchaException e) {
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throw new ReCaptchaException("reCaptcha Challenge needed");
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}
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try {
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DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
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DocumentBuilder builder = factory.newDocumentBuilder();
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InputStream stream = new ByteArrayInputStream(dashDoc.getBytes());
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Document doc = builder.parse(stream);
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NodeList representationList = doc.getElementsByTagName("Representation");
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for (int i = 0; i < representationList.getLength(); i++) {
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Element representation = ((Element) representationList.item(i));
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try {
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String mimeType = ((Element) representation.getParentNode()).getAttribute("mimeType");
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String id = representation.getAttribute("id");
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String url = representation.getElementsByTagName("BaseURL").item(0).getTextContent();
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ItagItem itag = ItagItem.getItag(Integer.parseInt(id));
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if (itag != null) {
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MediaFormat mediaFormat = MediaFormat.getFromMimeType(mimeType);
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if (itag.itagType.equals(ItagItem.ItagType.AUDIO)) {
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AudioStream audioStream = new AudioStream(url, mediaFormat, itag.avgBitrate);
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if (!Stream.containSimilarStream(audioStream, streamInfo.getAudioStreams())) {
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streamInfo.getAudioStreams().add(audioStream);
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}
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} else {
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boolean isVideoOnly = itag.itagType.equals(ItagItem.ItagType.VIDEO_ONLY);
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VideoStream videoStream = new VideoStream(url, mediaFormat, itag.resolutionString, isVideoOnly);
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if (isVideoOnly) {
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if (!Stream.containSimilarStream(videoStream, streamInfo.getVideoOnlyStreams())) {
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streamInfo.getVideoOnlyStreams().add(videoStream);
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}
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} else if (!Stream.containSimilarStream(videoStream, streamInfo.getVideoStreams())) {
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streamInfo.getVideoStreams().add(videoStream);
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}
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}
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}
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} catch (Exception ignored) {
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}
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}
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} catch (Exception e) {
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throw new DashMpdParsingException("Could not parse Dash mpd", e);
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}
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}
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}
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