/// <summary>
/// Load the specified midiFile with tempo (bpm).
/// </summary>
public void Load(TextAsset midiFile, float bpm = -1)
{
if (_isPlaying)
{
_multiSequencer = null;
_isPlaying = false;
}
if (bpm != -1)
{
_midiFileTempo = bpm;
}
_midiFile = midiFile;
MidiFileContainer song = MidiFileLoader.Load(_midiFile.bytes);
_multiSequencer = new MidiMultiTrackSequencer(song, _midiFileTempo);
_isLoaded = true;
MidiFileInfo info = _multiSequencer.info;
_onLoadedEvent.Invoke(midiFile, info);
}
static void Main(string[] args)
{
//Application.EnableVisualStyles();
//Application.SetCompatibleTextRenderingDefault(false);
//Application.Run(new ColourForm());
var midiout = new StreamWriter(@"E:\test.mid");
var midiin = new StreamReader(@"E:\Midi\Pi.mid");
MidiWriter writer = new MidiWriter(midiout.BaseStream);
writer.Init();
var filter = new TrackFilter();
MidiFileInfo info = MidiFileInfo.Parse(midiin.BaseStream);
writer.WriteDivision(info.Division);
writer.WriteNtrks((ushort)Math.Min(info.TrackCount, 65535));
writer.WriteFormat(info.Format);
for (int i = 0; i < info.TrackCount; i++)
{
Console.WriteLine("Priocessing track: " + i);
byte[] trackbytes = new byte[info.Tracks[i].Length];
midiin.BaseStream.Position = info.Tracks[i].Start;
midiin.BaseStream.Read(trackbytes, 0, (int)info.Tracks[i].Length);
writer.InitTrack();
long prevtime = 0;
double hue = i * 60;
int d = 3;
filter.MidiEventFilter = (byte[] dtimeb, int dtime, byte[] data, long time) =>
{
byte[] e = new byte[] { 0xFF, 0x0A, 0x08, 0x00, 0x0F, 0x7F, 0x00, 0x00, 0x00, 0x00, 0xFF };
//byte[] e = new byte[] { 0xFF, 0x0A, 0x0C, 0x00, 0x0F, 0x7F, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00, 0xFF };
if (time - prevtime > d)
{
List <byte> o = new List <byte>();
long start = time - dtime;
while (prevtime + d < time)
{
prevtime += d;
int delta = (int)(prevtime - start);
int r, g, b;
HsvToRgb(hue, 1, 1, out r, out g, out b);
hue += 1;
hue = hue % 360;
e[7] = (byte)r;
e[8] = (byte)g;
e[9] = (byte)b;
//HsvToRgb(hue + 60, 1, 1, out r, out g, out b);
//hue += 1;
//hue = hue % 360;
//e[11] = (byte)r;
//e[12] = (byte)g;
//e[13] = (byte)b;
o.AddRange(filter.MakeVariableLen(delta));
o.AddRange(e);
start += delta;
}
o.AddRange(filter.MakeVariableLen((int)(time - start)));
o.AddRange(data);
return(o.ToArray());
}
return(dtimeb.Concat(data).ToArray());
};
var newtrackbytes = filter.FilterTrack(new MemoryByteReader(trackbytes));
writer.Write(newtrackbytes);
writer.EndTrack();
}
writer.Close();
}
