/// <summary>
/// SMF ファイルを指定してシーケンサを初期化します。
/// </summary>
/// <param name="filename">読み込まれる SMF ファイル。</param>
public void Load(string filename)
{
if (this.sequencer != null)
this.sequencer.Stop();
this.sequence = new Sequence(filename);
this.sequencer = new Sequencer.Sequencer(sequence);
Console.WriteLine("Loaded: {0}", Path.GetFileName(filename));
Encoding sjis = Encoding.GetEncoding(932);
foreach (MetaEvent item in sequence.Tracks.Where(t => t.Number == 0).SelectMany(t => t.Events).Where(e => e is MetaEvent))
{
switch (item.MetaType)
{
case MetaType.Text:
Console.WriteLine("\tText: {0}", sjis.GetString(item.Data).Trim());
break;
case MetaType.Copyrights:
Console.WriteLine("\tCopyrights: {0}", sjis.GetString(item.Data).Trim());
break;
case MetaType.TrackName:
Console.WriteLine("\tTitle: {0}", sjis.GetString(item.Data).Trim());
break;
case MetaType.InstrumentName:
Console.WriteLine("\tInstrument: {0}", sjis.GetString(item.Data).Trim());
break;
case MetaType.Lyrics:
Console.WriteLine("\tLyrics: {0}", sjis.GetString(item.Data).Trim());
break;
case MetaType.ProgramName:
Console.WriteLine("\tProgram: {0}", sjis.GetString(item.Data).Trim());
break;
case MetaType.DeviceName:
Console.WriteLine("\tDevice: {0}", sjis.GetString(item.Data).Trim());
break;
default:
break;
}
}
Console.WriteLine("\tFormat: {0}, Resolution: {1}", sequence.Format, sequence.Resolution);
Console.WriteLine("\tTracks: {0}, Events: {1}, MaxTick: {2}", sequence.Tracks.Count(), sequence.EventCount, sequence.MaxTick);
Console.WriteLine("Frequency: {0:n0} Hz", Stopwatch.Frequency);
sequencer.OnTrackEvent += (sender, e) =>
{
var events = e.Events.ToArray();
this.EventCount += events.Length;
this.ProcessMidiEvent(events);
};
sequencer.SequenceStarted += (sender, e) => Console.WriteLine("Sequencer Start");
sequencer.SequenceEnd += (sender, e) => Console.WriteLine("Sequencer End");
sequencer.SequenceStopped += (sender, e) => Console.WriteLine("Sequencer Stop");
sequencer.TempoChanged += (sender, e) => Console.WriteLine("Tempo {0:f2} => {1:f2}", e.OldTempo, e.NewTempo);
}
/// <summary>
/// シーケンスを指定して新しい Sequencer クラスのインスタンスを初期化します。
/// </summary>
/// <param name="sequence">一連のイベントが格納されたシーケンス。</param>
public Sequencer(Sequence sequence)
{
if (sequence == null)
throw new ArgumentNullException();
this.Sequence = sequence;
this.events = new List<Event>(sequence.Tracks.SelectMany(t => t.Events).OrderBy(e => e.Tick));
this.endOfTick = sequence.MaxTick;
this.tick = -(long)(sequence.Resolution * 1.0);
this.RecalcTickTime();
}
