public override Task<List<TrackChunk>> Process()
{
var trackChunk = new List<TrackChunk> { Song.TrackContainers[ProcessorConfig.Track].SourceTrackChunk }.Concat(ProcessorConfig.IncludedTracks.Select(track => Song.TrackContainers[track].SourceTrackChunk)).Merge();
var lyricEvents = new List<TimedEvent>();
var lyricLineCount = 0;
var tempoMap = Song.SourceTempoMap.Clone();
foreach (var midiEvent in trackChunk.GetTimedEvents().Where(e => e.Event.EventType == MidiEventType.Lyric))
{
lyricLineCount++;
midiEvent.Time = midiEvent.TimeAs<MetricTimeSpan>(tempoMap).TotalMicroseconds / 1000 + 120000;
lyricEvents.Add(midiEvent);
}
var trackChunks = new List<TrackChunk>();
for (var i = 0; i < ProcessorConfig.PlayerCount; i++)
{
trackChunk = new TrackChunk();
trackChunk.AddObjects(lyricEvents);
trackChunk.AddObjects(new List<ITimedObject>{new TimedEvent(new SequenceTrackNameEvent("lyric:"+lyricLineCount))});
trackChunks.Add(trackChunk);
}
return Task.FromResult(trackChunks);
}
/// <summary>
/// Creates a track chunk with the specified objects.
/// </summary>
/// <remarks>
/// Note that only MIDI events allowed by SMF specification will be added to result track chunk.
/// So instances of <see cref="TimedEvent"/> containing <see cref="SystemCommonEvent"/> or
/// <see cref="SystemRealTimeEvent"/> won't be added.
/// </remarks>
/// <param name="timedObjects">Collection of objects to create a track chunk from.</param>
/// <returns><see cref="TrackChunk"/> containing the <paramref name="timedObjects"/>.</returns>
/// <exception cref="ArgumentNullException"><paramref name="timedObjects"/> is <c>null</c>.</exception>
public static TrackChunk ToTrackChunk(this IEnumerable <ITimedObject> timedObjects)
{
ThrowIfArgument.IsNull(nameof(timedObjects), timedObjects);
var trackChunk = new TrackChunk();
trackChunk.AddObjects(timedObjects);
return(trackChunk);
}