NewPipeExtractor/src/main/java/org/schabi/newpipe/extractor/utils/DashMpdParser.java

115 lines
5.0 KiB
Java

package org.schabi.newpipe.extractor.utils;
import org.schabi.newpipe.extractor.Downloader;
import org.schabi.newpipe.extractor.MediaFormat;
import org.schabi.newpipe.extractor.NewPipe;
import org.schabi.newpipe.extractor.exceptions.ParsingException;
import org.schabi.newpipe.extractor.exceptions.ReCaptchaException;
import org.schabi.newpipe.extractor.services.youtube.ItagItem;
import org.schabi.newpipe.extractor.stream.AudioStream;
import org.schabi.newpipe.extractor.stream.Stream;
import org.schabi.newpipe.extractor.stream.StreamInfo;
import org.schabi.newpipe.extractor.stream.VideoStream;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
/*
* Created by Christian Schabesberger on 02.02.16.
*
* Copyright (C) Christian Schabesberger 2016 <chris.schabesberger@mailbox.org>
* DashMpdParser.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 <http://www.gnu.org/licenses/>.
*/
public class DashMpdParser {
private DashMpdParser() {
}
public static class DashMpdParsingException extends ParsingException {
DashMpdParsingException(String message, Exception e) {
super(message, e);
}
}
/**
* Download manifest and return nodelist with elements of tag "AdaptationSet"
*/
public static void getStreams(StreamInfo streamInfo) throws DashMpdParsingException, ReCaptchaException {
String dashDoc;
Downloader downloader = NewPipe.getDownloader();
try {
dashDoc = downloader.download(streamInfo.dashMpdUrl);
} catch (IOException ioe) {
throw new DashMpdParsingException("Could not get dash mpd: " + streamInfo.dashMpdUrl, ioe);
} catch (ReCaptchaException e) {
throw new ReCaptchaException("reCaptcha Challenge needed");
}
try {
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
InputStream stream = new ByteArrayInputStream(dashDoc.getBytes());
Document doc = builder.parse(stream);
NodeList representationList = doc.getElementsByTagName("Representation");
for (int i = 0; i < representationList.getLength(); i++) {
Element representation = ((Element) representationList.item(i));
try {
String mimeType = ((Element) representation.getParentNode()).getAttribute("mimeType");
String id = representation.getAttribute("id");
String url = representation.getElementsByTagName("BaseURL").item(0).getTextContent();
ItagItem itag = ItagItem.getItag(Integer.parseInt(id));
if (itag != null) {
MediaFormat mediaFormat = MediaFormat.getFromMimeType(mimeType);
int format = mediaFormat != null ? mediaFormat.id : -1;
if (itag.itagType.equals(ItagItem.ItagType.AUDIO)) {
AudioStream audioStream = new AudioStream(url, format, itag.avgBitrate);
if (!Stream.containSimilarStream(audioStream, streamInfo.audio_streams)) {
streamInfo.audio_streams.add(audioStream);
}
} else {
boolean isVideoOnly = itag.itagType.equals(ItagItem.ItagType.VIDEO_ONLY);
VideoStream videoStream = new VideoStream(url, format, itag.resolutionString, isVideoOnly);
if (isVideoOnly) {
if (!Stream.containSimilarStream(videoStream, streamInfo.video_only_streams)) {
streamInfo.video_only_streams.add(videoStream);
}
} else if (!Stream.containSimilarStream(videoStream, streamInfo.video_streams)) {
streamInfo.video_streams.add(videoStream);
}
}
}
} catch (Exception ignored) {
}
}
} catch (Exception e) {
throw new DashMpdParsingException("Could not parse Dash mpd", e);
}
}
}