protected MovieBox createMovieBox(Movie movie, Map<Track, int[]> chunks) {
MovieBox movieBox = new MovieBox();
MovieHeaderBox mvhd = new MovieHeaderBox();
mvhd.setCreationTime(new Date());
mvhd.setModificationTime(new Date());
mvhd.setMatrix(movie.getMatrix());
long movieTimeScale = getTimescale(movie);
long duration = 0;
for (Track track : movie.getTracks()) {
long tracksDuration;
if (track.getEdits() == null || track.getEdits().isEmpty()) {
tracksDuration =
(track.getDuration() * movieTimeScale / track.getTrackMetaData().getTimescale());
} else {
double d = 0;
for (Edit edit : track.getEdits()) {
d += (long) edit.getSegmentDuration();
}
tracksDuration = (long) (d * movieTimeScale);
}
if (tracksDuration > duration) {
duration = tracksDuration;
}
}
mvhd.setDuration(duration);
mvhd.setTimescale(movieTimeScale);
// find the next available trackId
long nextTrackId = 0;
for (Track track : movie.getTracks()) {
nextTrackId =
nextTrackId < track.getTrackMetaData().getTrackId()
? track.getTrackMetaData().getTrackId()
: nextTrackId;
}
mvhd.setNextTrackId(++nextTrackId);
movieBox.addBox(mvhd);
for (Track track : movie.getTracks()) {
movieBox.addBox(createTrackBox(track, movie, chunks));
}
// metadata here
Box udta = createUdta(movie);
if (udta != null) {
movieBox.addBox(udta);
}
return movieBox;
}
protected Box createEdts(Track track, Movie movie) {
if (track.getEdits() != null && track.getEdits().size() > 0) {
EditListBox elst = new EditListBox();
elst.setVersion(0); // quicktime won't play file when version = 1
List<EditListBox.Entry> entries = new ArrayList<EditListBox.Entry>();
for (Edit edit : track.getEdits()) {
entries.add(
new EditListBox.Entry(
elst,
Math.round(edit.getSegmentDuration() * movie.getTimescale()),
edit.getMediaTime() * track.getTrackMetaData().getTimescale() / edit.getTimeScale(),
edit.getMediaRate()));
}
elst.setEntries(entries);
EditBox edts = new EditBox();
edts.addBox(elst);
return edts;
} else {
return null;
}
}
protected TrackBox createTrackBox(Track track, Movie movie, Map<Track, int[]> chunks) {
TrackBox trackBox = new TrackBox();
TrackHeaderBox tkhd = new TrackHeaderBox();
tkhd.setEnabled(true);
tkhd.setInMovie(true);
tkhd.setInPreview(true);
tkhd.setInPoster(true);
tkhd.setMatrix(track.getTrackMetaData().getMatrix());
tkhd.setAlternateGroup(track.getTrackMetaData().getGroup());
tkhd.setCreationTime(track.getTrackMetaData().getCreationTime());
if (track.getEdits() == null || track.getEdits().isEmpty()) {
tkhd.setDuration(
track.getDuration() * getTimescale(movie) / track.getTrackMetaData().getTimescale());
} else {
long d = 0;
for (Edit edit : track.getEdits()) {
d += (long) edit.getSegmentDuration();
}
tkhd.setDuration(d * track.getTrackMetaData().getTimescale());
}
tkhd.setHeight(track.getTrackMetaData().getHeight());
tkhd.setWidth(track.getTrackMetaData().getWidth());
tkhd.setLayer(track.getTrackMetaData().getLayer());
tkhd.setModificationTime(new Date());
tkhd.setTrackId(track.getTrackMetaData().getTrackId());
tkhd.setVolume(track.getTrackMetaData().getVolume());
trackBox.addBox(tkhd);
trackBox.addBox(createEdts(track, movie));
MediaBox mdia = new MediaBox();
trackBox.addBox(mdia);
MediaHeaderBox mdhd = new MediaHeaderBox();
mdhd.setCreationTime(track.getTrackMetaData().getCreationTime());
mdhd.setDuration(track.getDuration());
mdhd.setTimescale(track.getTrackMetaData().getTimescale());
mdhd.setLanguage(track.getTrackMetaData().getLanguage());
mdia.addBox(mdhd);
HandlerBox hdlr = new HandlerBox();
mdia.addBox(hdlr);
hdlr.setHandlerType(track.getHandler());
MediaInformationBox minf = new MediaInformationBox();
if (track.getHandler().equals("vide")) {
minf.addBox(new VideoMediaHeaderBox());
} else if (track.getHandler().equals("soun")) {
minf.addBox(new SoundMediaHeaderBox());
} else if (track.getHandler().equals("text")) {
minf.addBox(new NullMediaHeaderBox());
} else if (track.getHandler().equals("subt")) {
minf.addBox(new SubtitleMediaHeaderBox());
} else if (track.getHandler().equals("hint")) {
minf.addBox(new HintMediaHeaderBox());
} else if (track.getHandler().equals("sbtl")) {
minf.addBox(new NullMediaHeaderBox());
}
// dinf: all these three boxes tell us is that the actual
// data is in the current file and not somewhere external
DataInformationBox dinf = new DataInformationBox();
DataReferenceBox dref = new DataReferenceBox();
dinf.addBox(dref);
DataEntryUrlBox url = new DataEntryUrlBox();
url.setFlags(1);
dref.addBox(url);
minf.addBox(dinf);
//
Box stbl = createStbl(track, movie, chunks);
minf.addBox(stbl);
mdia.addBox(minf);
return trackBox;
}