94 lines
3.8 KiB
Java
94 lines
3.8 KiB
Java
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package org.schabi.newpipe.extractor;
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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.stream_info.AudioStream;
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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 java.io.ByteArrayInputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.List;
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import java.util.Vector;
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import javax.xml.parsers.DocumentBuilder;
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import javax.xml.parsers.DocumentBuilderFactory;
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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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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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public static List<AudioStream> getAudioStreams(String dashManifestUrl)
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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(dashManifestUrl);
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} catch(IOException ioe) {
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throw new DashMpdParsingException("Could not get dash mpd: " + dashManifestUrl, 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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Vector<AudioStream> audioStreams = new Vector<>();
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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 adaptationSetList = doc.getElementsByTagName("AdaptationSet");
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for(int i = 0; i < adaptationSetList.getLength(); i++) {
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Element adaptationSet = (Element) adaptationSetList.item(i);
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String memeType = adaptationSet.getAttribute("mimeType");
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if(memeType.contains("audio")) {
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Element representation = (Element) adaptationSet.getElementsByTagName("Representation").item(0);
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String url = representation.getElementsByTagName("BaseURL").item(0).getTextContent();
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int bandwidth = Integer.parseInt(representation.getAttribute("bandwidth"));
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int samplingRate = Integer.parseInt(representation.getAttribute("audioSamplingRate"));
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int format = -1;
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if(memeType.equals(MediaFormat.WEBMA.mimeType)) {
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format = MediaFormat.WEBMA.id;
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} else if(memeType.equals(MediaFormat.M4A.mimeType)) {
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format = MediaFormat.M4A.id;
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}
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audioStreams.add(new AudioStream(url, format, bandwidth, samplingRate));
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}
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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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return audioStreams;
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}
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}
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