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package de.danoeh.antennapod.util.id3reader;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import de.danoeh.antennapod.feed.Chapter;
import de.danoeh.antennapod.feed.ID3Chapter;
import de.danoeh.antennapod.util.id3reader.model.FrameHeader;
import de.danoeh.antennapod.util.id3reader.model.TagHeader;
public class ChapterReader extends ID3Reader {
private static final String FRAME_ID_CHAPTER = "CHAP";
private static final String FRAME_ID_TITLE = "TIT2";
private List<Chapter> chapters;
private ID3Chapter currentChapter;
@Override
public int onStartTagHeader(TagHeader header) {
chapters = new ArrayList<Chapter>();
System.out.println(header.toString());
return ID3Reader.ACTION_DONT_SKIP;
}
@Override
public int onStartFrameHeader(FrameHeader header, InputStream input)
throws IOException, ID3ReaderException {
System.out.println(header.toString());
if (header.getId().equals(FRAME_ID_CHAPTER)) {
if (currentChapter != null) {
if (!hasId3Chapter(currentChapter)) {
chapters.add(currentChapter);
System.out.println("Found chapter: " + currentChapter);
currentChapter = null;
}
}
String elementId = readISOString(input, Integer.MAX_VALUE);
char[] startTimeSource = readBytes(input, 4);
long startTime = ((int) startTimeSource[0] << 24)
| ((int) startTimeSource[1] << 16)
| ((int) startTimeSource[2] << 8) | startTimeSource[3];
currentChapter = new ID3Chapter(elementId, startTime);
skipBytes(input, 12);
return ID3Reader.ACTION_DONT_SKIP;
} else if (header.getId().equals(FRAME_ID_TITLE)) {
if (currentChapter != null && currentChapter.getTitle() == null) {
currentChapter
.setTitle(readString(input, header.getSize()));
System.out.println("Found title: " + currentChapter.getTitle());
return ID3Reader.ACTION_DONT_SKIP;
}
}
return super.onStartFrameHeader(header, input);
}
private boolean hasId3Chapter(ID3Chapter chapter) {
for (Chapter c : chapters) {
if (((ID3Chapter) c).getId3ID().equals(chapter.getId3ID())) {
return true;
}
}
return false;
}
@Override
public void onEndTag() {
if (currentChapter != null) {
if (!hasId3Chapter(currentChapter)) {
chapters.add(currentChapter);
}
}
System.out.println("Reached end of tag");
if (chapters != null) {
for (Chapter c : chapters) {
System.out.println(c.toString());
}
}
}
@Override
public void onNoTagHeaderFound() {
System.out.println("No tag header found");
super.onNoTagHeaderFound();
}
public List<Chapter> getChapters() {
return chapters;
}
}
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