/** Returns the number of the longest track. */
public int getLongestTrack() {
int maxTitle = 0;
long maxLength = 0;
for (int ix = 0; ix < info.getTitles().size(); ix++) {
DvdTitle title = info.getTitle(ix);
if (title.getTotalTimeMs() > maxLength) {
maxTitle = ix;
maxLength = title.getTotalTimeMs();
}
}
return maxTitle + 1;
}
/**
* Gets all {@link Audio} streams of a track.
*
* @param trackNr Track number, starting from 1
* @return List of {@link Audio} streams found
*/
public List<Audio> getAudios(int trackNr) {
if (trackNr <= 0) {
return Collections.emptyList();
}
DvdTitle title = info.getTitle(trackNr - 1);
DvdTitleSet vts = title.getTitleSet();
List<Audio> result = new ArrayList<>();
for (int ix = 0; ix < vts.getAudios().size(); ix++) {
DvdAudio da = vts.getAudios().get(ix);
if (da.getStreamId() == null) {
continue;
}
Audio audio = new Audio();
audio.setIx(ix + 1);
audio.setFormat(da.getMode().toString().toLowerCase());
audio.setChannels(da.getChannels());
audio.setStreamId(da.getStreamId());
audio.setType(AudioType.NOT_SPECIFIED);
if (da.getType() != null) {
try {
audio.setType(AudioType.valueOf(da.getType().name()));
} catch (IllegalArgumentException ex) {
// ignore
}
}
Language language = LanguageUtils.findLanguage(da.getLang());
if (language != null) {
audio.setLanguage(language);
audio.setEnabled(true);
} else {
audio.setLanguage(LanguageUtils.getMissing());
audio.setEnabled(false);
}
result.add(audio);
}
return result;
}
/**
* Gets all {@link Subtitle} of a track.
*
* @param trackNr Track number, starting from 1
* @return List of {@link Subtitle} found
*/
public List<Subtitle> getSubtitles(int trackNr) {
if (trackNr <= 0) {
return Collections.emptyList();
}
DvdTitle title = info.getTitle(trackNr - 1);
DvdTitleSet vts = title.getTitleSet();
List<Subtitle> result = new ArrayList<>();
Set<Integer> seen = new HashSet<>(); // make sure streams appear only once
int index = 1;
for (DvdSubtitle ds : vts.getSubs()) {
if (ds.getStream43Id() != null && !seen.contains(ds.getStream43Id())) {
result.add(
createSubtitle(
index++, ds.getStream43Id(), title.getVtsn(), ds, SubtitleFormat.STANDARD));
seen.add(ds.getStream43Id());
}
if (ds.getStreamWideId() != null && !seen.contains(ds.getStreamWideId())) {
result.add(
createSubtitle(
index++, ds.getStreamWideId(), title.getVtsn(), ds, SubtitleFormat.WIDE));
seen.add(ds.getStreamWideId());
}
if (ds.getStreamLetterboxId() != null && !seen.contains(ds.getStreamLetterboxId())) {
result.add(
createSubtitle(
index++, ds.getStreamLetterboxId(), title.getVtsn(), ds, SubtitleFormat.LETTERBOX));
seen.add(ds.getStreamLetterboxId());
}
if (ds.getStreamPanScanId() != null && !seen.contains(ds.getStreamPanScanId())) {
result.add(
createSubtitle(
index++, ds.getStreamPanScanId(), title.getVtsn(), ds, SubtitleFormat.PANSCAN));
seen.add(ds.getStreamPanScanId());
}
}
return result;
}
/**
* Analyzes a DVD track and returns all chapters.
*
* @param trackNr Track number to be analyzed, starting from 1
* @return List of {@link Chapter} entities
*/
public List<Chapter> getChapters(int trackNr) {
if (trackNr <= 0) {
return Collections.emptyList();
}
DvdTitle title = info.getTitle(trackNr - 1);
int chapters = title.getChapters();
List<Chapter> result = new ArrayList<>();
long ms = 0;
int chapter = 1;
for (long time : title.getChapterTimeMs()) {
result.add(createChapter(chapter++, ms, chapters));
ms += time;
}
result.add(createChapter(chapter, ms, chapters));
return result;
}
/** Gets a description of all {@link Track} of the DVD. */
public Track[] getTracks() {
Track[] result = new Track[info.getTitles().size()];
for (int ix = 0; ix < result.length; ix++) {
DvdTitle title = info.getTitle(ix);
DvdTitleSet vts = title.getTitleSet();
Track track = new Track();
track.setTrack(title.getTitle());
track.setAngles(title.getAngles());
track.setChapters(title.getChapters());
track.setDimension(new Dimension(vts.getWidth(), vts.getHeight()));
long lengthSec = title.getTotalTimeMs() / 1000L;
track.setLength(String.format("%d:%02d", (int) (lengthSec / 60), (int) (lengthSec % 60)));
track.setAspect(AspectRatio.valueOf(vts.getAspect().name()));
result[ix] = track;
}
return result;
}
/**
* Gets the subtitle palette of a track.
*
* @param trackNr Track number, starting from 1
* @return {@link Palette}
*/
public Palette getPalette(int trackNr) {
DvdTitle title = info.getTitle(trackNr - 1);
return new Palette(title.getColors());
}