void ParseConductorTrack(MidiTrack conductorTrack, TempoMap tempoMap, TimeSignatureMap timeSignatureMap)
{
var ticks = 0;
foreach (var ev in conductorTrack)
{
ticks += ev.delta;
if (!ev.metaEvent.HasValue)
{
continue;
}
var meta = ev.metaEvent.Value;
if (meta.type == MetaEvent.Type.SET_TEMPO)
{
tempoMap.Add(ticks, ParseTempo(meta));
}
if (meta.type == MetaEvent.Type.TIME_SIGNATURE)
{
int numerator, denominator;
ParseTimeSignature(meta, out numerator, out denominator);
timeSignatureMap.Add(ticks, numerator, denominator);
}
}
}
public NoteList Read(string path)
{
var smf = MidiFileLoader.Load(File.ReadAllBytes(path));
var conductorTrack = smf.tracks[0];
var noteTrack = smf.tracks[1];
var tempoMap = new TempoMap(smf.division);
var timeSignatureMap = new TimeSignatureMap(smf.division);
ParseConductorTrack(conductorTrack, tempoMap, timeSignatureMap);
var noteList = new NoteList(tempoMap, timeSignatureMap);
ParseNoteTrack(smf, noteTrack, noteList);
return(noteList);
}
public NoteList(TempoMap tempoMap, TimeSignatureMap timeSignatureMap)
{
this.tempoMap = tempoMap;
this.timeSignatureMap = timeSignatureMap;
}
