private static void TestRemoveAt()
{
Track a = new Track();
ChannelMessage message = new ChannelMessage(ChannelCommand.NoteOff, 0, 60, 0);
a.Insert(0, message);
a.Insert(10, message);
a.Insert(20, message);
a.Insert(30, message);
a.Insert(40, message);
int count = a.Count;
a.RemoveAt(0);
Debug.Assert(a.Count == count - 1);
a.RemoveAt(a.Count - 2);
Debug.Assert(a.Count == count - 2);
Debug.Assert(a.GetMidiEvent(0).AbsoluteTicks == 10);
Debug.Assert(a.GetMidiEvent(a.Count - 2).AbsoluteTicks == 30);
a.RemoveAt(0);
a.RemoveAt(0);
a.RemoveAt(0);
Debug.Assert(a.Count == 1);
}
private static void TestRemoveAt()
{
Track a = new Track();
ChannelMessage message = new ChannelMessage(ChannelCommand.NoteOff, 0, 60, 0);
a.Insert(0, message);
a.Insert(10, message);
a.Insert(20, message);
a.Insert(30, message);
a.Insert(40, message);
int count = a.Count;
a.RemoveAt(0);
Debug.Assert(a.Count == count - 1);
a.RemoveAt(a.Count - 2);
Debug.Assert(a.Count == count - 2);
Debug.Assert(a.GetMidiEvent(0).AbsoluteTicks == 10);
Debug.Assert(a.GetMidiEvent(a.Count - 2).AbsoluteTicks == 30);
a.RemoveAt(0);
a.RemoveAt(0);
a.RemoveAt(0);
Debug.Assert(a.Count == 1);
}
private static void TestMerge()
{
Track a = new Track();
Track b = new Track();
a.Merge(b);
Debug.Assert(a.Count == 1);
ChannelMessage message = new ChannelMessage(ChannelCommand.NoteOff, 0, 60, 0);
b.Insert(0, message);
b.Insert(10, message);
b.Insert(20, message);
b.Insert(30, message);
b.Insert(40, message);
a.Merge(b);
Debug.Assert(a.Count == 1 + b.Count - 1);
a.Clear();
Debug.Assert(a.Count == 1);
a.Insert(0, message);
a.Insert(10, message);
a.Insert(20, message);
a.Insert(30, message);
a.Insert(40, message);
int count = a.Count;
a.Merge(b);
Debug.Assert(a.Count == count + b.Count - 1);
Debug.Assert(a.GetMidiEvent(0).DeltaTicks == 0);
Debug.Assert(a.GetMidiEvent(1).DeltaTicks == 0);
Debug.Assert(a.GetMidiEvent(2).DeltaTicks == 10);
Debug.Assert(a.GetMidiEvent(3).DeltaTicks == 0);
Debug.Assert(a.GetMidiEvent(4).DeltaTicks == 10);
Debug.Assert(a.GetMidiEvent(5).DeltaTicks == 0);
Debug.Assert(a.GetMidiEvent(6).DeltaTicks == 10);
Debug.Assert(a.GetMidiEvent(7).DeltaTicks == 0);
Debug.Assert(a.GetMidiEvent(8).DeltaTicks == 10);
Debug.Assert(a.GetMidiEvent(9).DeltaTicks == 0);
}
static void ReadMidiTrack(MidiData midiData, Sanford.Multimedia.Midi.Track midiTrack, int sequencerDivision)
{
Dictionary <int, float> noteTimes = new Dictionary <int, float>();
Dictionary <int, float> noteVelocities = new Dictionary <int, float>();
for (int i = 0; i < midiTrack.Count; ++i)
{
MidiEvent midiEvent = midiTrack.GetMidiEvent(i);
if (midiEvent.MidiMessage.GetBytes().Length < 3)
{
continue;
}
byte midiType = (byte)(midiEvent.MidiMessage.GetBytes()[0] & 0xFF);
byte note = (byte)(midiEvent.MidiMessage.GetBytes()[1] & 0xFF);
byte velocity = (byte)(midiEvent.MidiMessage.GetBytes()[2] & 0xFF);
float time = (4.0f * midiEvent.AbsoluteTicks) / sequencerDivision;
if (midiType == (byte)ChannelCommand.NoteOff ||
(midiType == (byte)ChannelCommand.NoteOn) && velocity == 0)
{
if (noteTimes.ContainsKey(note))
{
Note noteObject = new Note();
noteObject.note = note;
noteObject.start = noteTimes[note];
noteObject.end = time;
noteObject.velocity = noteVelocities[note];
midiData.notes.Add(noteObject);
noteTimes.Remove(note);
noteVelocities.Remove(note);
}
}
else if (midiType == (byte)ChannelCommand.NoteOn)
{
noteTimes[note] = time;
noteVelocities[note] = Mathf.Min(1.0f, velocity / 127.0f);
}
}
}
private static void TestMerge()
{
Track a = new Track();
Track b = new Track();
a.Merge(b);
Debug.Assert(a.Count == 1);
ChannelMessage message = new ChannelMessage(ChannelCommand.NoteOff, 0, 60, 0);
b.Insert(0, message);
b.Insert(10, message);
b.Insert(20, message);
b.Insert(30, message);
b.Insert(40, message);
a.Merge(b);
Debug.Assert(a.Count == 1 + b.Count - 1);
a.Clear();
Debug.Assert(a.Count == 1);
a.Insert(0, message);
a.Insert(10, message);
a.Insert(20, message);
a.Insert(30, message);
a.Insert(40, message);
int count = a.Count;
a.Merge(b);
Debug.Assert(a.Count == count + b.Count - 1);
Debug.Assert(a.GetMidiEvent(0).DeltaTicks == 0);
Debug.Assert(a.GetMidiEvent(1).DeltaTicks == 0);
Debug.Assert(a.GetMidiEvent(2).DeltaTicks == 10);
Debug.Assert(a.GetMidiEvent(3).DeltaTicks == 0);
Debug.Assert(a.GetMidiEvent(4).DeltaTicks == 10);
Debug.Assert(a.GetMidiEvent(5).DeltaTicks == 0);
Debug.Assert(a.GetMidiEvent(6).DeltaTicks == 10);
Debug.Assert(a.GetMidiEvent(7).DeltaTicks == 0);
Debug.Assert(a.GetMidiEvent(8).DeltaTicks == 10);
Debug.Assert(a.GetMidiEvent(9).DeltaTicks == 0);
}
public override void SaveAsMIDI(string fileName)
{
if (NumTracks == 0)
{
throw new InvalidDataException("Questa canzone non ha tracce.");
}
CalculateTicks();
var midi = new Sequence(96)
{
Format = 1
};
var metaTrack = new Sanford.Multimedia.Midi.Track();
midi.Add(metaTrack);
for (int i = 0; i < NumTracks; i++)
{
var track = new Sanford.Multimedia.Midi.Track();
midi.Add(track);
FreeNoteCommand freeNote = null;
MidiEvent freeNoteOff = null;
for (int j = 0; j < Commands[i].Count; j++)
{
var e = Commands[i][j];
// Extended note ended ended and wasn't renewed
if (freeNoteOff != null && freeNoteOff.AbsoluteTicks < e.AbsoluteTicks * 2)
{
freeNote = null;
freeNoteOff = null;
}
if (e.Command is VolumeCommand vol)
{
track.Insert(e.AbsoluteTicks * 2, new ChannelMessage(ChannelCommand.Controller, i, (int)ControllerType.Volume, vol.Volume / 2));
}
else if (e.Command is VoiceCommand voice)
{
// TODO: Fork and remove restriction
track.Insert(e.AbsoluteTicks * 2, new ChannelMessage(ChannelCommand.ProgramChange, i, voice.Voice & 0x7F));
}
else if (e.Command is PanpotCommand pan)
{
track.Insert(e.AbsoluteTicks * 2, new ChannelMessage(ChannelCommand.Controller, i, (int)ControllerType.Pan, pan.Panpot / 2 + 0x40));
}
else if (e.Command is BendCommand bend)
{
track.Insert(e.AbsoluteTicks * 2, new ChannelMessage(ChannelCommand.PitchWheel, i, 0, bend.Bend / 2 + 0x40));
}
else if (e.Command is BendRangeCommand bendr)
{
track.Insert(e.AbsoluteTicks * 2, new ChannelMessage(ChannelCommand.Controller, i, 20, bendr.Range / 2));
}
else if (e.Command is MLSSNoteCommand note)
{
// Extended note is playing and it should be extended by this note
if (freeNote != null && freeNote.Note - 0x80 == note.Note)
{
// Move the note off command
track.Move(freeNoteOff, freeNoteOff.AbsoluteTicks + note.Duration * 2);
}
// Extended note is playing but this note is different OR there is no extended note playing
// Either way we play a new note and forget that one
else
{
track.Insert(e.AbsoluteTicks * 2, new ChannelMessage(ChannelCommand.NoteOn, i, note.Note, 0x7F));
track.Insert(e.AbsoluteTicks * 2 + note.Duration * 2, new ChannelMessage(ChannelCommand.NoteOff, i, note.Note));
freeNote = null;
freeNoteOff = null;
}
}
else if (e.Command is FreeNoteCommand free)
{
// Extended note is playing and it should be extended
if (freeNote != null && freeNote.Note == free.Note)
{
// Move the note off command
track.Move(freeNoteOff, freeNoteOff.AbsoluteTicks + free.Duration * 2);
}
// Extended note is playing but this note is different OR there is no extended note playing
// Either way we play a new note and forget that one
else
{
track.Insert(e.AbsoluteTicks * 2, new ChannelMessage(ChannelCommand.NoteOn, i, free.Note - 0x80, 0x7F));
track.Insert(e.AbsoluteTicks * 2 + free.Duration * 2, new ChannelMessage(ChannelCommand.NoteOff, i, free.Note - 0x80));
freeNote = free;
freeNoteOff = track.GetMidiEvent(track.Count - 2); // -1 would be the end of track event
}
}
else if (i == 0 && e.Command is TempoCommand tempo)
{
var change = new TempoChangeBuilder {
Tempo = (60000000 / tempo.Tempo)
};
change.Build();
metaTrack.Insert(e.AbsoluteTicks * 2, change.Result);
}
else if (i == 0 && e.Command is GoToCommand goTo)
{
int jumpCmd = Commands[i].FindIndex(c => c.GetOffset() == goTo.Offset);
metaTrack.Insert(Commands[i][jumpCmd].AbsoluteTicks * 2, new MetaMessage(MetaType.Marker, new byte[] { (byte)'[' }));
metaTrack.Insert(e.AbsoluteTicks * 2, new MetaMessage(MetaType.Marker, new byte[] { (byte)']' }));
}
else if (e.Command is FinishCommand fine)
{
// TODO: Fix ticks before end of track event
// Library automatically is updating track.EndOfTrackOffset for us
break;
}
}
}
midi.Save(fileName);
}
/// <summary>
/// 添加mid文件到dataGridView
/// </summary>
/// <param name="trakInfo"></param>
/// <param name="gridView"></param>
private void AddTrackInfo2GridView(Sanford.Multimedia.Midi.Track trakInfo, DataGridView gridView)
{
//DataGridViewTextBoxColumn boxColumn = new DataGridViewTextBoxColumn();
DataGridViewTextBoxColumn ColumnEventIndex = new DataGridViewTextBoxColumn();
ColumnEventIndex.HeaderText = "Event-Num";
ColumnEventIndex.Name = "ColumnEventIndex";
ColumnEventIndex.ReadOnly = true;
//ColumnEventIndex.Width = 200;
DataGridViewTextBoxColumn ColumnAbsTicks = new DataGridViewTextBoxColumn();
ColumnAbsTicks.HeaderText = "Abs-Ticks";
ColumnAbsTicks.Name = "ColumnAbsTicks";
ColumnAbsTicks.ReadOnly = true;
//ColumnAbsTicks.Width = 80;
//
// ColumnDeltaTicks
//
DataGridViewTextBoxColumn ColumnDeltaTicks = new DataGridViewTextBoxColumn();
ColumnDeltaTicks.HeaderText = "Dlt Ticks";
ColumnDeltaTicks.Name = "ColumnDeltaTicks";
ColumnDeltaTicks.ReadOnly = true;
//
// ColumnMsgStatus
//
DataGridViewTextBoxColumn ColumnMsgStatus = new DataGridViewTextBoxColumn();
ColumnMsgStatus.HeaderText = "MsgStatus";
ColumnMsgStatus.Name = "ColumnMsgStatus";
ColumnMsgStatus.ReadOnly = true;
//
// ColumnMsgType
//
DataGridViewTextBoxColumn ColumnMsgType = new DataGridViewTextBoxColumn();
ColumnMsgType.HeaderText = "MsgType";
ColumnMsgType.Name = "ColumnMsgType";
ColumnMsgType.ReadOnly = true;
//
// ColumnMsgSubType
//
DataGridViewTextBoxColumn ColumnMsgSubType = new DataGridViewTextBoxColumn();
ColumnMsgSubType.HeaderText = "SubType";
ColumnMsgSubType.Name = "ColumnMsgSubType";
ColumnMsgSubType.ReadOnly = true;
//
// ColumnMsgData1
//
DataGridViewTextBoxColumn ColumnMsgData1 = new DataGridViewTextBoxColumn();
ColumnMsgData1.HeaderText = "MsgData1";
ColumnMsgData1.Name = "ColumnMsgData1";
ColumnMsgData1.ReadOnly = true;
//
// ColumnMsgData2
//
DataGridViewTextBoxColumn ColumnMsgData2 = new DataGridViewTextBoxColumn();
ColumnMsgData2.HeaderText = "MsgData2";
ColumnMsgData2.Name = "ColumnMsgData2";
ColumnMsgData2.ReadOnly = true;
//
// ColumnMidiChannel
//
DataGridViewTextBoxColumn ColumnMidiChannel = new DataGridViewTextBoxColumn();
ColumnMidiChannel.HeaderText = "MidiChannel";
ColumnMidiChannel.Name = "ColumnMidiChannel";
ColumnMidiChannel.ReadOnly = true;
//
// ColumnBytes
//
DataGridViewTextBoxColumn ColumnBytes = new DataGridViewTextBoxColumn();
ColumnBytes.HeaderText = "Bytes";
ColumnBytes.Name = "ColumnBytes";
ColumnBytes.ReadOnly = true;
gridView.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
gridView.Columns.AddRange(new System.Windows.Forms.DataGridViewColumn[] {
ColumnEventIndex,
ColumnAbsTicks,
ColumnDeltaTicks,
ColumnMsgStatus,
ColumnMsgType,
ColumnMsgSubType,
ColumnMsgData1,
ColumnMsgData2,
ColumnMidiChannel,
ColumnBytes
});
for (int i = 0; i < trakInfo.Count; i++)
{
MidiEvent me = trakInfo.GetMidiEvent(i);
//listViewTrackInfo.Items.Add(string.Format("音轨{0},EventNo = {1} Msg type = {2} , status = {3}", i, j, me.MidiMessage.MessageType, me.MidiMessage.Status));
ArrayList stuff = new ArrayList();
stuff.Add(i);
stuff.Add(me.AbsoluteTicks);
stuff.Add(me.DeltaTicks);
stuff.Add(me.MidiMessage.Status);
stuff.Add(me.MidiMessage.MessageType);
switch (me.MidiMessage.MessageType)
{
case MessageType.Channel:
ChannelMessage cm = (ChannelMessage)me.MidiMessage;
stuff.Add(cm.Command);
stuff.Add(cm.Data1);
stuff.Add(cm.Data2);
stuff.Add(cm.MidiChannel);
break;
case MessageType.SystemExclusive:
SysExMessage sem = (SysExMessage)me.MidiMessage;
stuff.Add(sem.SysExType);
break;
case MessageType.SystemCommon:
SysCommonMessage scm = (SysCommonMessage)me.MidiMessage;
stuff.Add(scm.SysCommonType);
stuff.Add(scm.Data1);
stuff.Add(scm.Data2);
break;
case MessageType.SystemRealtime:
SysRealtimeMessage srm = (SysRealtimeMessage)me.MidiMessage;
stuff.Add(srm.SysRealtimeType);
break;
case MessageType.Meta:
MetaMessage mm = (MetaMessage)me.MidiMessage;
stuff.Add(mm.MetaType);
//if (mm.MetaType == MetaType.TrackName)
//{
// stuff.Add(""); //data1
// stuff.Add(""); //data2
// stuff.Add("");//MidiChannel
// byte[] bytesTrkName = mm.GetBytes();
// //UnicodeEncoding encoding = new UnicodeEncoding();
// //string trackName = encoding.GetString(mm.GetBytes());
// //stuff.Add(/*trackName*/mm.GetBytes());
//}
break;
}
//object[] stuff = { i, j, me.MidiMessage.MessageType,me.AbsoluteTicks };
gridView.Rows.Add(stuff.ToArray());
}
}