private void method_3(Stream midiStream)
{
BinaryReader midiFile = new BinaryReader(midiStream);
ByteFiddler.smethod_3("MIDI", midiFile, "MThd");
ByteFiddler.RotateLeft(midiFile.ReadUInt32());
ByteFiddler.RotateRight(midiFile.ReadUInt16());
int num = (int)ByteFiddler.RotateRight(midiFile.ReadUInt16());
this.method_1((int)ByteFiddler.RotateRight(midiFile.ReadUInt16()));
this.midiLineList.Clear();
for (int i = 0; i < num; i++)
{
MIDILine midiLine = new MIDILine(this.method_0());
this.midiLineList.Add(midiLine);
List<AbstractNoteClass> list = new List<AbstractNoteClass>();
ByteFiddler.smethod_3("MIDI", midiFile, "MTrk");
uint num2 = ByteFiddler.RotateLeft(midiFile.ReadUInt32());
long position = midiFile.BaseStream.Position;
int num3 = 0;
byte b = 0;
while (midiFile.BaseStream.Position < position + (long)((ulong)num2))
{
int num4 = (int)this.method_4(midiFile);
AbstractNoteClass midiNote = null;
num3 += num4;
byte b2 = midiFile.ReadByte();
if (b2 != 255)
{
byte int_;
if ((b2 & 128) == 128)
{
int_ = midiFile.ReadByte();
b = b2;
}
else
{
int_ = b2;
b2 = b;
}
byte b3 = (byte)(b2 >> 4);
switch (b3)
{
case 8:
midiNote = new MIDINote(num3, (int)int_, midiFile.ReadByte(), false);
goto IL_298;
case 9:
midiNote = new MIDINote(num3, (int)int_, midiFile.ReadByte(), true);
goto IL_298;
case 11:
case 12:
case 14:
goto IL_298;
}
throw new NotImplementedException(string.Format("Unhandled MIDI command: {0} at position {1}", b3.ToString("X"), midiFile.BaseStream.Position));
}
byte b4 = midiFile.ReadByte();
long num5 = this.method_4(midiFile);
byte[] array = midiFile.ReadBytes((int)num5);
byte b5 = b4;
if (b5 <= 47)
{
switch (b5)
{
case 1:
midiNote = new zzNote1(num3, zzNote1.Enum37.const_0, Encoding.ASCII.GetString(array));
break;
case 2:
break;
case 3:
{
string text = Encoding.ASCII.GetString(array).ToUpper();
if (!string.IsNullOrEmpty(text))
{
midiLine.method_3(text);
}
break;
}
default:
if (b5 != 47)
{
}
break;
}
}
else if (b5 != 81)
{
if (b5 == 88)
{
if (num5 != 4L)
{
Class355.interface15_0.imethod_1(string.Format("Expected time signature event to have data length of 4, but found instead {0}", num5));
}
midiNote = new zzNote338(num3, (int)array[0], (int)array[1], (int)array[2], (int)array[3]);
}
}
else
{
if (num5 != 3L)
{
Class355.interface15_0.imethod_1(string.Format("Expected tempo event to have data length of 3, but found instead {0}", num5));
}
int num6 = (int)array[0] << 16;
num6 |= (int)array[1] << 8;
num6 |= (int)array[2];
midiNote = new BpmNote1(num3, num6);
}
IL_298:
if (midiNote != null)
{
list.Add(midiNote);
}
}
list.Sort(new Comparison<AbstractNoteClass>(AbstractNoteClass.smethod_0));
midiLine.method_1(list);
midiFile.BaseStream.Seek(position + (long)((ulong)num2), SeekOrigin.Begin);
}
}
public zzNote1(int int_1, zzNote1.Enum37 enum37_1, string string_1)
{
this.int_0 = int_1;
this.enum37_0 = enum37_1;
this.string_0 = string_1;
}