/// <summary>
/// Exports the current <see cref="Pattern"/> to track chunk.
/// </summary>
/// <param name="tempoMap">Tempo map to process pattern data according with.</param>
/// <param name="channel">Channel of notes that will be generated by pattern.</param>
/// <returns>The <see cref="TrackChunk"/> containing notes events generated by the current <see cref="Pattern"/>.</returns>
/// <exception cref="ArgumentNullException"><paramref name="tempoMap"/> is null.</exception>
public TrackChunk ToTrackChunk(TempoMap tempoMap, FourBitNumber channel)
{
ThrowIfArgument.IsNull(nameof(tempoMap), tempoMap);
var context = new PatternContext(tempoMap, channel);
var result = InvokeActions(0, context);
//
var trackChunk = new TrackChunk();
using (var notesManager = trackChunk.ManageNotes())
{
notesManager.Notes.Add(result.Notes ?? Enumerable.Empty <Note>());
}
using (var eventsManager = trackChunk.ManageTimedEvents())
{
eventsManager.Events.Add(result.Events ?? Enumerable.Empty <TimedEvent>());
}
//
return(trackChunk);
}
public void Decode(string midiFile, int keyNoteOctave)
{
try
{
DecoderDic ddic = new DecoderDic(keyNoteOctave);
MidiFile midi = MidiFile.Read(midiFile);
List <TrackChunk> trackList = midi.GetTrackChunks().ToList();
string result = "";
TrackChunk track = trackList[0];
NotesManager noteManager = track.ManageNotes();
foreach (Note note in noteManager.Notes)
{
result += ddic.GetChar(note.NoteName, note.Octave);
}
Console.WriteLine("-----------------------------------------");
Console.WriteLine("DECODED MIDI FILE MESSAGE: " + result);
Console.WriteLine("-----------------------------------------");
}
catch (IOException)
{
Console.WriteLine("[ERROR] Cannot read " + midiFile + "! Maybe is already used by another process?");
Environment.Exit(-1);
}
catch (Exception e)
{
Console.WriteLine("[ERROR] Something goes wrong here: " + e.Message);
Environment.Exit(-1);
}
}
public static void Test()
{
var midiFile = new MidiFile();
TempoMap tempoMap = midiFile.GetTempoMap();
var trackChunk = new TrackChunk();
using (var notesManager = trackChunk.ManageNotes())
{
NotesCollection notes = notesManager.Notes;
var g = Enum.GetValues(typeof(NoteName));
NoteName n = (NoteName)g.GetValue(MainWindow._rnd.Next(g.Length));
notes.Add(new InterNote(n, 4, LC.ConvertFrom(
new MetricTimeSpan(hours: 0, minutes: 0, seconds: 2), 0, tempoMap)));
n = (NoteName)g.GetValue(MainWindow._rnd.Next(g.Length));
notes.Add(new InterNote(n, 3, LC.ConvertFrom(
new MetricTimeSpan(hours: 0, minutes: 0, seconds: 1, milliseconds: 500), 0, tempoMap)));
n = (NoteName)g.GetValue(MainWindow._rnd.Next(g.Length));
notes.Add(new InterNote(n, 5, LC.ConvertFrom(
new MetricTimeSpan(hours: 0, minutes: 0, seconds: 3), 0, tempoMap)));
}
midiFile.Chunks.Add(trackChunk);
using (var outputDevice = OutputDevice.GetByName("Microsoft GS Wavetable Synth"))
using (var playback = midiFile.GetPlayback(outputDevice))
{
// playback.Speed = 2.0;
playback.Play();
}
}
private MidiFile WriteToFile(List <Chord> chords, int numberCurPopulaiton)
{
var midiFile = new MidiFile();
var tempoMap = midiFile.GetTempoMap();
var trackChunk = new TrackChunk();
using (var notesManager = trackChunk.ManageNotes())
{
foreach (var chord in chords)
{
notesManager.Notes.Add(chord.Notes);
}
}
midiFile.Chunks.Add(trackChunk);
string name = numberCurPopulaiton + "_" + DateTime.Now.ToString().Replace(':', ',').Replace(' ', '_') + "_" + rnd.Next() + ((char)rnd.Next('A', 'Z' + 1)).ToString() + ".mid";
string format = ".mid";
string directory = @".\curPopulationMIDI\" + name;
// проверка на существование файла
while (File.Exists(directory))
{
name = numberCurPopulaiton + "_" + DateTime.Now.ToString().Replace(':', ',').Replace(' ', '_') + "_" + rnd.Next() + ((char)rnd.Next('A', 'Z' + 1)).ToString() + ".mid";
directory = @".\curPopulationMIDI\" + name;
}
filesCurPopulation.Add(new MusicFile(name, format, directory));
midiFile.Write(directory);
return(midiFile);
}
/// <summary>
/// Randomizes notes contained in the specified <see cref="TrackChunk"/>.
/// </summary>
/// <param name="trackChunk"><see cref="TrackChunk"/> to randomize notes in.</param>
/// <param name="bounds">Bounds to randomize time within.</param>
/// <param name="tempoMap">Tempo map used to calculate time bounds to randomize within.</param>
/// <param name="settings">Settings according to which notes should be randomized.</param>
/// <exception cref="ArgumentNullException"><paramref name="trackChunk"/> is null. -or-
/// <paramref name="bounds"/> is null. -or- <paramref name="tempoMap"/> is null.</exception>
public static void RandomizeNotes(this TrackChunk trackChunk, IBounds bounds, TempoMap tempoMap, NotesRandomizingSettings settings = null)
{
ThrowIfArgument.IsNull(nameof(trackChunk), trackChunk);
ThrowIfArgument.IsNull(nameof(bounds), bounds);
ThrowIfArgument.IsNull(nameof(tempoMap), tempoMap);
using (var notesManager = trackChunk.ManageNotes())
{
new NotesRandomizer().Randomize(notesManager.Notes, bounds, tempoMap, settings);
}
}
/// <summary>
/// Quantizes notes contained in the specified <see cref="TrackChunk"/>.
/// </summary>
/// <param name="trackChunk"><see cref="TrackChunk"/> to quantize notes in.</param>
/// <param name="grid">Grid to quantize objects by.</param>
/// <param name="tempoMap">Tempo map used to calculate times to quantize by.</param>
/// <param name="settings">Settings according to which notes should be quantized.</param>
/// <exception cref="ArgumentNullException"><paramref name="trackChunk"/> is null. -or-
/// <paramref name="grid"/> is null. -or- <paramref name="tempoMap"/> is null.</exception>
/// <exception cref="InvalidOperationException">Note is going to be moved beyond zero. -or-
/// Note's end is going to be moved beyond the note's fixed end.</exception>
public static void QuantizeNotes(this TrackChunk trackChunk, IGrid grid, TempoMap tempoMap, NotesQuantizingSettings settings = null)
{
ThrowIfArgument.IsNull(nameof(trackChunk), trackChunk);
ThrowIfArgument.IsNull(nameof(grid), grid);
ThrowIfArgument.IsNull(nameof(tempoMap), tempoMap);
using (var notesManager = trackChunk.ManageNotes())
{
new NotesQuantizer().Quantize(notesManager.Notes, grid, tempoMap, settings);
}
}
private static void SplitTrackChunkNotes(TrackChunk trackChunk, Func <NotesSplitter, IEnumerable <Note>, IEnumerable <Note> > splitOperation)
{
using (var notesManager = trackChunk.ManageNotes())
{
var notes = notesManager.Notes;
var notesSplitter = new NotesSplitter();
var newNotes = splitOperation(notesSplitter, notes).ToList();
notes.Clear();
notes.Add(newNotes);
}
}
public void InitPlay()
{
_midiFile = new MidiFile();
TempoMap tempoMap = _midiFile.GetTempoMap();
var trackChunk = new TrackChunk();
using (var notesManager = trackChunk.ManageNotes())
{
NotesCollection notes = notesManager.Notes;
var len = LC.ConvertFrom(new MetricTimeSpan(hours: 0, minutes: 0, seconds: 1), 0, tempoMap);
notes.Add(new InterNote(Note, Octave, len));
}
_midiFile.Chunks.Add(trackChunk);
}
private MidiFile To(MusicItem data)
{
var midiFile = new MidiFile();
var tempoMap = midiFile.GetTempoMap();
var trackChunk = new TrackChunk();
using (var notesManager = trackChunk.ManageNotes())
{
var length = LengthConverter.ConvertFrom(
2 * MusicalTimeSpan.Eighth.Triplet(),
0,
tempoMap);
var note = new Melanchall.DryWetMidi.Interaction.Note(NoteName.A, 4, length);
notesManager.Notes.Add(note);
}
midiFile.Chunks.Add(trackChunk);
return(midiFile);
}
/// <summary>
/// Merges nearby notes in the specified <see cref="TrackChunk"/>.
/// </summary>
/// <param name="trackChunk"><see cref="TrackChunk"/> to merge nearby notes in.</param>
/// <param name="tempoMap">Tempo map used to calculate distances between notes.</param>
/// <param name="settings">Settings according to which notes should be merged.</param>
/// <param name="filter">Filter for notes to merge.</param>
/// <exception cref="ArgumentNullException">
/// <para>One of the following errors occured:</para>
/// <list type="bullet">
/// <item>
/// <description><paramref name="trackChunk"/> is <c>null</c>.</description>
/// </item>
/// <item>
/// <description><paramref name="tempoMap"/> is <c>null</c>.</description>
/// </item>
/// </list>
/// </exception>
public static void MergeNotes(this TrackChunk trackChunk,
TempoMap tempoMap,
NotesMergingSettings settings = null,
Predicate <Note> filter = null)
{
ThrowIfArgument.IsNull(nameof(trackChunk), trackChunk);
ThrowIfArgument.IsNull(nameof(tempoMap), tempoMap);
using (var notesManager = trackChunk.ManageNotes())
{
var notes = notesManager.Notes;
var notesMerger = new NotesMerger();
var newNotes = notesMerger.Merge(notes.Where(n => filter == null || filter(n)), tempoMap, settings)
.ToList();
notes.Clear();
notes.Add(newNotes);
}
}
private static void Merge(TrackChunk trackChunk)
{
using (var notesManager = trackChunk.ManageNotes())
{
var notes = notesManager.Notes;
var currentNotes = new Dictionary <FourBitNumber, Dictionary <SevenBitNumber, Note> >();
foreach (var note in notes.ToList())
{
var channel = note.Channel;
Dictionary <SevenBitNumber, Note> currentNotesByNoteNumber;
if (!currentNotes.TryGetValue(channel, out currentNotesByNoteNumber))
{
currentNotes.Add(channel, currentNotesByNoteNumber = new Dictionary <SevenBitNumber, Note>());
}
Note currentNote;
if (!currentNotesByNoteNumber.TryGetValue(note.NoteNumber, out currentNote))
{
currentNotesByNoteNumber.Add(note.NoteNumber, currentNote = note);
continue;
}
var currentEndTime = currentNote.Time + currentNote.Length;
if (note.Time <= currentEndTime)
{
var endTime = Math.Max(note.Time + note.Length, currentEndTime);
currentNote.Length = endTime - currentNote.Time;
notes.Remove(note);
}
else
{
currentNotesByNoteNumber[note.NoteNumber] = note;
}
}
}
}
public void Notes_Overlapped()
{
var trackChunk = new TrackChunk(
new NoteOnEvent((SevenBitNumber)30, (SevenBitNumber)70),
new NoteOnEvent((SevenBitNumber)60, (SevenBitNumber)50),
new NoteOffEvent((SevenBitNumber)60, (SevenBitNumber)0)
{
DeltaTime = 100
},
new NoteOnEvent((SevenBitNumber)40, (SevenBitNumber)70),
new NoteOffEvent((SevenBitNumber)40, (SevenBitNumber)0)
{
DeltaTime = 100
},
new NoteOffEvent((SevenBitNumber)30, (SevenBitNumber)0));
var expectedNotes = new[]
{
new Note((SevenBitNumber)30, 200, 0)
{
Velocity = (SevenBitNumber)70
},
new Note((SevenBitNumber)60, 100, 0)
{
Velocity = (SevenBitNumber)50
},
new Note((SevenBitNumber)40, 100, 100)
{
Velocity = (SevenBitNumber)70
}
};
using (var notesManager = trackChunk.ManageNotes())
{
var notes = notesManager.Notes;
MidiAsserts.AreEqual(expectedNotes, notes, "Notes are invalid.");
}
}
private static MidiFile CreateTestFile()
{
const int trackChunksNumber = 50;
const int notesPerTrackChunk = 1000;
const int noteLength = 100;
var midiFile = new MidiFile();
for (int i = 0; i < trackChunksNumber; i++)
{
var trackChunk = new TrackChunk();
using (var notesManager = trackChunk.ManageNotes())
{
notesManager.Notes.Add(Enumerable.Range(0, notesPerTrackChunk)
.Select(j => new Note((SevenBitNumber)(j % SevenBitNumber.MaxValue), noteLength, j)));
}
midiFile.Chunks.Add(trackChunk);
}
return(midiFile);
}
public void Encode(string textToEncode, string outputFileName, int keyNoteOctave)
{
try
{
if (File.Exists(outputFileName))
{
File.Delete(outputFileName);
}
EncoderDic encoderDic = new EncoderDic(keyNoteOctave);
MidiFile midi = new MidiFile();
TempoMap tempo = midi.GetTempoMap();
TrackChunk trackChunk = new TrackChunk();
using (NotesManager notesManager = trackChunk.ManageNotes())
{
int timePos = 0;
for (int i = 0; i < textToEncode.Length; i++)
{
Note note = new Note(encoderDic.GetNoteName(textToEncode[i]), encoderDic.GetOctave(textToEncode[i]), LengthConverter.ConvertFrom(2 * MusicalTimeSpan.Eighth.Triplet(), 0, tempo), timePos);
//(Tipo de nota, octava, longitud de la nota, posicion en el tiempo);
timePos += 65;
notesManager.Notes.Add(note);
}
}
midi.Chunks.Add(trackChunk);
midi.Write(outputFileName);
}catch (IOException)
{
Console.WriteLine("[ERROR] Cannot create " + outputFileName + "! Maybe is already used by another process?");
Environment.Exit(-1);
}
catch (Exception e)
{
Console.WriteLine("[ERROR] Something goes wrong here: " + e.Message);
Environment.Exit(-1);
}
}
private void btnSave_Click(object sender, EventArgs e)
{
if (Path.GetExtension(filePath) == ".mid")
{
var chunks = song.GetTrackChunks().ToArray();
var tempoMap = song.GetTempoMap();
var fixedMidi = new MidiFile();
var headerChunk = new TrackChunk();
int i = 0;
var t0Notes = chunks[0].GetNotes().ToArray();
if (t0Notes.Length == 0) // check if there are notes in Track0
{
i = 1;
var timedEvents = chunks[0].GetTimedEvents().ToArray();
var title = timedEvents.Where(t => t.Event.EventType == MidiEventType.SequenceTrackName);
if (title.Count() == 1)
{
headerChunk.AddTimedEvents(title);
}
}
fixedMidi.Chunks.Add(headerChunk);
fixedMidi.ReplaceTempoMap(tempoMap);
for (int ch = 0; i < chunks.Count(); i++, ch++)
{
var newChunk = new TrackChunk();
var timedEvents = chunks[i].GetTimedEvents();
using (var timedEventsManager = newChunk.ManageTimedEvents())
{
foreach (var timedEvent in timedEvents)
{
var eventType = timedEvent.Event.EventType;
if (eventType == MidiEventType.SequenceTrackName)
{
timedEventsManager.Events.Add(timedEvent);
}
else if (eventType == MidiEventType.ProgramChange)
{
var pcEvent = timedEvent.Event as ProgramChangeEvent;
pcEvent.Channel = (FourBitNumber)ch;
timedEventsManager.Events.AddEvent(pcEvent, timedEvent.Time);
}
}
}
using (var notesManager = newChunk.ManageNotes())
{
var notes = chunks[i].GetNotes().ToArray();
foreach (var n in notes)
{
var newNote = n;
newNote.Channel = (FourBitNumber)ch; // change channel of the notes in track
notesManager.Notes.Add(newNote);
}
}
fixedMidi.Chunks.Add(newChunk);
}
string outputFilename = Path.GetFileNameWithoutExtension(filePath) + "_fix.mid";
WriteMidiToFile(fixedMidi, outputFilename);
textBox1.AppendText("Wrote to file: " + outputFilename + Environment.NewLine);
}
else if (Path.GetExtension(filePath) == ".mml")
{
string outputFilename = Path.GetFileNameWithoutExtension(filePath) + "_fix.mml";
File.WriteAllText(outputFilename, sb.ToString());
textBox1.AppendText("Wrote to file: " + outputFilename + Environment.NewLine);
}
}
public static MidiFile ToMidiFile(this Bitmap bitmap, TimeSpan songLength)
{
bool newPixelSet = true;
var metricTimeSpan = new MetricTimeSpan(songLength);
var midiFile = new MidiFile();
TempoMap tempoMap = midiFile.GetTempoMap();
long maxLength = TimeConverter.ConvertFrom(metricTimeSpan, tempoMap);
List <MidiPixelSet> pixelSet = new List <MidiPixelSet>();
MidiPixelSet midiPixelSet = new();
for (int i = 0; i < bitmap.Width; i++)
{
for (int j = 0; j < bitmap.Height; j++)
{
var pixel = bitmap.GetPixel(i, j);
if (pixel.A == 0)
{
break;
}
if (newPixelSet)
{
midiPixelSet = new();
midiPixelSet.Tone = new(pixel.R, pixel.G, pixel.B);
}
else
{
midiPixelSet.Timing = new(pixel.R, pixel.G, pixel.B, maxLength);
pixelSet.Add(midiPixelSet);
}
newPixelSet = !newPixelSet;
}
}
for (int i = 0; i < 10; i++)
{
Console.WriteLine(pixelSet[i].Tone.NoteNumber);
}
var trackChunk = new TrackChunk();
int count = 0;
using (var notesManager = trackChunk.ManageNotes())
{
NotesCollection notes = notesManager.Notes;
pixelSet.ForEach(x =>
{
count++;
notes.Add(new Note(x.Tone.NoteNumber, x.Tone.Length, x.Timing.Time));
});
}
midiFile.Chunks.Add(trackChunk);
return(midiFile);
}
