Playback и текущий Tick #167

laika65 · 2022-03-01T13:30:33Z

laika65
Mar 1, 2022

Существует ли возможность подписаться на текущий тик из Playback-а? Иле нужно наследоваться и как то огородить? Направьте, пожалуйста, в нужном направлении.

Хочу сделать обычный прогресс бар с перемоткой.

И спасибо вам за такую хорошую библиотеку. Для меня она просто бесценна. Буду углубляться в шарп и вашу библиотеку.

Answered by melanchall

Mar 1, 2022

Вот простейший код (вы его под себя адаптируйте):

using System.Linq;
using Melanchall.DryWetMidi.Core;
using Melanchall.DryWetMidi.Interaction;
using Melanchall.DryWetMidi.Multimedia;

namespace DwmExample
{
    class Program
    {
        static void Main(string[] args)
        {
            var midiFile = MidiFile.Read("My MIDI file.mid");
            var playback = midiFile.GetPlayback(/*ваше устройство*/);
           
            var duration = playback.GetDuration<MidiTimeSpan>().TimeSpan;
            // тут выставляете Maximum прогрессбара

            PlaybackCurrentTimeWatcher.Instance.AddPlayback(playback, TimeSpanType.Midi);
            PlaybackCurrentTimeWatcher.Instance.Curren…

View full answer

melanchall · 2022-03-01T13:40:27Z

melanchall
Mar 1, 2022
Maintainer

Вот простейший код (вы его под себя адаптируйте):

using System.Linq;
using Melanchall.DryWetMidi.Core;
using Melanchall.DryWetMidi.Interaction;
using Melanchall.DryWetMidi.Multimedia;

namespace DwmExample
{
    class Program
    {
        static void Main(string[] args)
        {
            var midiFile = MidiFile.Read("My MIDI file.mid");
            var playback = midiFile.GetPlayback(/*ваше устройство*/);
           
            var duration = playback.GetDuration<MidiTimeSpan>().TimeSpan;
            // тут выставляете Maximum прогрессбара

            PlaybackCurrentTimeWatcher.Instance.AddPlayback(playback, TimeSpanType.Midi);
            PlaybackCurrentTimeWatcher.Instance.CurrentTimeChanged += OnPlaybackCurrentTimeChanged;
           
            PlaybackCurrentTimeWatcher.Instance.Start();
            playback.Start();
           
            // ...
            // ...
            // когда Playback и OutputDevice больше не нужен, вызовите:
            //   PlaybackCurrentTimeWatcher.Instance.Stop();
            //   playback.Dispose();
            //   outputDevice.Dispose();
            
            Console.WriteLine("Press any key to exit...");
            Console.ReadKey();
        }

        private static void OnPlaybackCurrentTimeChanged(object sender, PlaybackCurrentTimeChangedEventArgs e)
        {
            var time = ((MidiTimeSpan)e.Times.First().Time).TimeSpan;
            // тут выставляете Value прогрессбара
        }
    }
}

Если хотите к какому-то времени перемещаться, например, по клику на прогрессбаре:

playback.MoveToTime(new MidiTimeSpan(/*тут Value прогрессбара*/));

Можете и шагами перематывать, для этого используйте методы MoveForward/MoveBack.

4 replies

laika65 Mar 2, 2022
Author

Огромное спасибо, всё получилось.

CIRCE-EYES Mar 6, 2022

@laika65
Please please, can you put the whole code you used to work the progressbar ? Im having syntax doubts to write in my code, And yes I want too to put a progressbar to see the progress of the midi file playing.
Thanks a lot to both !!!!!

CIRCE-EYES Mar 6, 2022

This is a basic code to play midifiles in loop mode, where I want to add a progress bar without exit.

https://www.mediafire.com/file/ndoq98t3b1zdsrq/Debug.zip/file

If you can get the solution... idwould be very pleased ! True.!!

CIRCE-EYES Mar 6, 2022

Ups.. Sorry
I ll post the source code....

laika65 · 2022-03-06T15:03:59Z

laika65
Mar 6, 2022
Author

Я не программист и не знаю VB и тем более Winforms, код автора рабочий, выдёргиваешь длительность в тиках с помощью
var duration = playback.GetDuration().TimeSpan;
подписываешься на CurrentTimeChanged у PlaybackCurrentTimeWatcher и в методе ( или делегат это? пока разбираюсь в этом) я вызываю :

dispatcherQueue.TryEnqueue(() =>
{
    Controller.Instance.CurTick = (double)((MidiTimeSpan)e.Times.First().Time).TimeSpan;
});

так как выполняется в другом потоке. Данный код для WinUi/UWP, в Winforms это делается как то иначе.
Могу помочь если дашь проект. Кстати, спасибо тебе, на твоих проектах учился.

24 replies

CIRCE-EYES Mar 28, 2022

using System;
using System.Collections;
using System.Collections.Generic;
using System.Data;
using System.Drawing;
using System.Diagnostics;
using System.Windows.Forms;
using System.Linq;
using System.Xml.Linq;
using System.Threading.Tasks;

using System.IO;
using Melanchall.DryWetMidi.Devices;
using Melanchall.DryWetMidi.Common;
using Melanchall.DryWetMidi.Interaction;
using Melanchall.DryWetMidi.Core;
using Melanchall.DryWetMidi.Tools;

namespace Fast_Play_Midi
{
public partial class Form1 : Form
{
internal Form1()
{
InitializeComponent();
}

	public OutputDevice _outputDevice;
	public Playback _playback;
	private short a;

	private void Form1_Load(object sender, EventArgs e)
	{

		foreach (OutputDevice portname_out in OutputDevice.GetAll())
		{
			Combo_output.Items.Add(portname_out.Name);
		}

		File1.Path = Dir1.Path;
		File1.Refresh();
	}


	public void Dir1_Change(object eventSender, System.EventArgs eventArgs)
	{
		File1.Path = Dir1.Path;
	}
	private void Drive1_SelectedIndexChanged(object eventSender, System.EventArgs eventArgs)
	{
		Dir1.Path = Drive1.Drive;
	}


	private void Button1_Click(object sender, EventArgs e)
	{
		progressBar1.Value = 0;
		TrackBar1.Value = 0;
		if (_playback == null)
		{
			return;
		}

		PlaybackCurrentTimeWatcher.Instance.RemovePlayback(_playback);
		PlaybackCurrentTimeWatcher.Instance.CurrentTimeChanged -= OnPlaybackCurrentTimeChanged;
		PlaybackCurrentTimeWatcher.Instance.Stop();

		_playback.InterruptNotesOnStop = true; 
		_playback.Stop();
		
		_outputDevice?.Dispose();
	}

	private void OnPlaybackCurrentTimeChanged(object sender, PlaybackCurrentTimeChangedEventArgs e)
	{
		var time = (int)((MidiTimeSpan)e.Times.First().Time).TimeSpan;
		progressBar1.Invoke((MethodInvoker)(() => progressBar1.Value = time));
		TrackBar1.Invoke((MethodInvoker)(() => TrackBar1.Value = time));
		label5.Invoke((MethodInvoker)(() => label5.Text = TimeConverter.ConvertTo<MetricTimeSpan>(time, _playback.TempoMap).ToString()));
	}

    public void TrackBar1_ValueChanged(object sender, EventArgs e)
    {
		if (_playback != null)
        {
			_playback.MoveToTime(new MidiTimeSpan(TrackBar1.Value));
		}
    }

	private void File1_SelectedIndexChanged(object sender, EventArgs e)
	{
		Button1.PerformClick();
		
		string FN = null;
		if (File1.Path.Substring(File1.Path.Length - 1) == "\\")
		{
			FN = File1.Path + File1.FileName;
		}
		else
		{
			FN = File1.Path + "\\" + File1.FileName;

			if (File1.SelectedItem == null)
			{
				return;
			}

			var valuebpm = trackBarBMP.Value;
			var syncbpm = int.Parse( Changed_Text_Tempo.Text);
			var midiFile = Melanchall.DryWetMidi.Core.MidiFile.Read(FN);
			var tempoMap = midiFile.GetTempoMap();
			var originalBpm = tempoMap.GetTempoAtTime(new MidiTimeSpan(0)).BeatsPerMinute;
			Actual_Text_Tempo.Text = System.Convert.ToString(originalBpm);
			var newSpeed = (double)syncbpm / originalBpm;


			TimeSpan midiFileDuration = midiFile.GetDuration<MetricTimeSpan>();
			var TotalTime = midiFileDuration.ToString("m\\:ss"); // Usefullllllll !!!!!!


			if (radio_minus_1.Checked == true)
			{
				Button1.PerformClick();
				var transposeBy = (SevenBitNumber)1;

				midiFile.ProcessNotes((n) => n.NoteNumber -= transposeBy, n => n.Channel != (FourBitNumber)9); //All Channels less 9 (drums)
			}
			if (radio_minus_2.Checked == true)
			{
				Button1.PerformClick();
				var transposeBy = (SevenBitNumber)2;

				midiFile.ProcessNotes((n) => n.NoteNumber -= transposeBy, n => n.Channel != (FourBitNumber)9); //All Channels less 9 (drums)
			}
			if (radio_minus_3.Checked == true)
			{
				Button1.PerformClick();
				var transposeBy = (SevenBitNumber)3;

				midiFile.ProcessNotes((n) => n.NoteNumber -= transposeBy, n => n.Channel != (FourBitNumber)9); //All Channels less 9 (drums)
			}
			if (radio_minus_4.Checked == true)
			{
				Button1.PerformClick();
				var transposeBy = (SevenBitNumber)4;

				midiFile.ProcessNotes((n) => n.NoteNumber -= transposeBy, n => n.Channel != (FourBitNumber)9); //All Channels less 9 (drums)
			}
			if (radio_minus_5.Checked == true)
			{
				Button1.PerformClick();
				var transposeBy = (SevenBitNumber)5;

				midiFile.ProcessNotes((n) => n.NoteNumber -= transposeBy, n => n.Channel != (FourBitNumber)9); //All Channels less 9 (drums)
			}
			if (radio_minus_6.Checked == true)
			{
				Button1.PerformClick();
				var transposeBy = (SevenBitNumber)6;

				midiFile.ProcessNotes((n) => n.NoteNumber -= transposeBy, n => n.Channel != (FourBitNumber)9); //All Channels less 9 (drums)
			}

			if (radio_more_1.Checked == true)
			{
				Button1.PerformClick();
				var transposeBy = (SevenBitNumber)1;

				midiFile.ProcessNotes((n) => n.NoteNumber += transposeBy, n => n.Channel != (FourBitNumber)9); //All Channels less 9 (drums)
			}
			if (radio_more_2.Checked == true)
			{
				Button1.PerformClick();
				var transposeBy = (SevenBitNumber)2;

				midiFile.ProcessNotes((n) => n.NoteNumber += transposeBy, n => n.Channel != (FourBitNumber)9); //All Channels less 9 (drums)
			}
			if (radio_more_3.Checked == true)
			{
				Button1.PerformClick();
				var transposeBy = (SevenBitNumber)3;

				midiFile.ProcessNotes((n) => n.NoteNumber += transposeBy, n => n.Channel != (FourBitNumber)9); //All Channels less 9 (drums)
			}
			if (radio_more_4.Checked == true)
			{
				Button1.PerformClick();
				var transposeBy = (SevenBitNumber)4;

				midiFile.ProcessNotes((n) => n.NoteNumber += transposeBy, n => n.Channel != (FourBitNumber)9); //All Channels less 9 (drums)
			}
			if (radio_more_5.Checked == true)
			{
				Button1.PerformClick();
				var transposeBy = (SevenBitNumber)5;

				midiFile.ProcessNotes((n) => n.NoteNumber += transposeBy, n => n.Channel != (FourBitNumber)9); //All Channels less 9 (drums)
			}
			if (radio_more_6.Checked == true)
			{
				Button1.PerformClick();
				var transposeBy = (SevenBitNumber)6;

				midiFile.ProcessNotes((n) => n.NoteNumber += transposeBy, n => n.Channel != (FourBitNumber)9); //All Channels less 9 (drums)
			}


			TOTALTIME.Text = TotalTime;

			if (_playback != null && _playback.IsRunning)

			{

				PlaybackCurrentTimeWatcher.Instance.RemovePlayback(_playback);
				PlaybackCurrentTimeWatcher.Instance.CurrentTimeChanged -= OnPlaybackCurrentTimeChanged;
				PlaybackCurrentTimeWatcher.Instance.Stop();

				_playback.Stop();
				_playback.Dispose();
				progressBar1.Value = 0;
				TrackBar1.Value = 0;

			};

			_outputDevice = OutputDevice.GetByName(Combo_output.SelectedItem.ToString());
			_playback = midiFile.GetPlayback(_outputDevice);
			_playback.Speed = newSpeed;
			_playback.Loop = (true);
			_playback.InterruptNotesOnStop = true;


			var duration = _playback.GetDuration<MidiTimeSpan>().TimeSpan;

			progressBar1.Maximum = (int)duration;
			TrackBar1.Maximum = (int)duration;

			PlaybackCurrentTimeWatcher.Instance.AddPlayback(_playback, TimeSpanType.Midi);
			PlaybackCurrentTimeWatcher.Instance.CurrentTimeChanged += OnPlaybackCurrentTimeChanged;
			PlaybackCurrentTimeWatcher.Instance.Start();

			_playback.Start();

		}
	}

	private void radio_minus_1_CheckedChanged(object sender, EventArgs e)
	{
		Button1.PerformClick();
		File1_SelectedIndexChanged(sender, new MouseEventArgs(MouseButtons.Left, 1, 0, 0, 0));
	}
	private void radio_minus_2_CheckedChanged(object sender, EventArgs e)
	{
		Button1.PerformClick();
		File1_SelectedIndexChanged(sender, new MouseEventArgs(MouseButtons.Left, 1, 0, 0, 0));
	}
	private void radio_minus_3_CheckedChanged(object sender, EventArgs e)
	{
		Button1.PerformClick();
		File1_SelectedIndexChanged(sender, new MouseEventArgs(MouseButtons.Left, 1, 0, 0, 0));
	}
	private void radio_minus_4_CheckedChanged(object sender, EventArgs e)
	{
		Button1.PerformClick();
		File1_SelectedIndexChanged(sender, new MouseEventArgs(MouseButtons.Left, 1, 0, 0, 0));
	}
	private void radio_minus_5_CheckedChanged(object sender, EventArgs e)
	{
		Button1.PerformClick();
		File1_SelectedIndexChanged(sender, new MouseEventArgs(MouseButtons.Left, 1, 0, 0, 0));
	}
	private void radio_minus_6_CheckedChanged(object sender, EventArgs e)
	{
		Button1.PerformClick();
		File1_SelectedIndexChanged(sender, new MouseEventArgs(MouseButtons.Left, 1, 0, 0, 0));
	}

	//=============================================================================

	private void radio_more_1_CheckedChanged(object sender, EventArgs e)
	{
		Button1.PerformClick();
		File1_SelectedIndexChanged(sender, new MouseEventArgs(MouseButtons.Left, 1, 0, 0, 0));
	}
	private void radio_more_2_CheckedChanged(object sender, EventArgs e)
	{
		Button1.PerformClick();
		File1_SelectedIndexChanged(sender, new MouseEventArgs(MouseButtons.Left, 1, 0, 0, 0));
	}
	private void radio_more_3_CheckedChanged(object sender, EventArgs e)
	{
		Button1.PerformClick();
		File1_SelectedIndexChanged(sender, new MouseEventArgs(MouseButtons.Left, 1, 0, 0, 0));
	}
	private void radio_more_4_CheckedChanged(object sender, EventArgs e)
	{
		Button1.PerformClick();
		File1_SelectedIndexChanged(sender, new MouseEventArgs(MouseButtons.Left, 1, 0, 0, 0));
	}
	private void radio_more_5_CheckedChanged(object sender, EventArgs e)
	{
		Button1.PerformClick();
		File1_SelectedIndexChanged(sender, new MouseEventArgs(MouseButtons.Left, 1, 0, 0, 0));
	}
	private void radio_more_6_CheckedChanged(object sender, EventArgs e)
	{
		Button1.PerformClick();
		File1_SelectedIndexChanged(sender, new MouseEventArgs(MouseButtons.Left, 1, 0, 0, 0));
	}

	private void trackBar2_MouseUp(object sender, MouseEventArgs e)
	{
		Button1.PerformClick();
		File1_SelectedIndexChanged(sender, new MouseEventArgs(MouseButtons.Left, 1, 0, 0, 0));
	}

	private void trackBar2_ValueChanged(object sender, EventArgs e)
	{
		Changed_Text_Tempo.Text = trackBarBMP.Value.ToString();
	}

	public void button2_Click(object sender, EventArgs e)
	{
		if (Actual_Text_Tempo.Text == "")
		{
			MessageBox.Show("First selec Midifile to Sync BPM");
			return;
		}

		var coco = double.Parse(Actual_Text_Tempo.Text);
		trackBarBMP.Value = int.Parse(coco.ToString());

		//	Changed_Text_Tempo.Text = Actual_Text_Tempo.Text.ToString();
		trackBarBMP.Update();
		trackBarBMP.Select();
		Button1.PerformClick();
		File1_SelectedIndexChanged(sender, new MouseEventArgs(MouseButtons.Left, 1, 0, 0, 0));
	}

	private void Button4_Click(object sender, EventArgs e)
	{

		var tempo = double.Parse(Changed_Text_Tempo.Text);
		Timer1.Interval = 60 * 1000 /int.Parse(tempo.ToString());
		Timer1.Enabled = true;
	}

	private void Button5_Click(object sender, EventArgs e)
	{
		Button1.PerformClick();
		Timer1.Enabled = false;

		_Shape_1.BackColor = Color.White;
		_Shape_2.BackColor = Color.White;
		_Shape_3.BackColor = Color.White;
		_Shape_4.BackColor = Color.White;
		_Shape_5.BackColor = Color.White;
		_Shape_6.BackColor = Color.White;
		_Shape_7.BackColor = Color.White;
		_Shape_8.BackColor = Color.White;
		a = 0;
	}

	private void Timer1_Tick(object sender, EventArgs e)
	{

		if (a == 8 || File1.SelectedIndex == -1)
		{
			a = 0;
			File1.SetSelected((File1.SelectedIndex + 1) % File1.Items.Count, true);

		}

		a = Convert.ToInt16(a + 1);
		if (a == 1)
		{
			File1_SelectedIndexChanged(sender, new MouseEventArgs(MouseButtons.Left, 1, 0, 0, 0));

			_Shape_8.BackColor = Color.White;
			_Shape_1.BackColor = Color.Red;
		}
		else if (a == 2)
		{
			_Shape_1.BackColor = Color.White;
			_Shape_2.BackColor = Color.Red;
		}
		else if (a == 3)
		{
			_Shape_2.BackColor = Color.White;
			_Shape_3.BackColor = Color.Red;
		}
		else if (a == 4)
		{
			_Shape_3.BackColor = Color.White;
			_Shape_4.BackColor = Color.Red;

			//-------------------------------------
		}
		else if (a == 5)
		{
			_Shape_4.BackColor = Color.White;
			_Shape_5.BackColor = Color.Red;
		}
		else if (a == 6)
		{
			_Shape_5.BackColor = Color.White;
			_Shape_6.BackColor = Color.Red;
		}
		else if (a == 7)
		{
			_Shape_6.BackColor = Color.White;
			_Shape_7.BackColor = Color.Red;
		}
		else if (a == 8)
		{
			_Shape_7.BackColor = Color.White;
			_Shape_8.BackColor = Color.Red;


		}
	}

}

}

melanchall Mar 28, 2022
Maintainer

@CIRCE-EYES Do you mean delays between files? So when one file playback finished, next one started after some amount of time, yes?

CIRCE-EYES Apr 21, 2022

I found the solution. Now items chained perfect !!!!
I will post the final solution, secure, and super fast !!!!!!

CIRCE-EYES Apr 24, 2022

https://github.com/CIRCE-EYES/Basic-Player-Midi-using-Drywet-library/blob/main/README.md

Here it is !!!!!

A new tiny app with perfect loop and syncro beats.

laika65 Apr 25, 2022
Author

Я так и не понял, что вы там синхронизировали, транспозицию можно вытащить в Combobox и уменьшить code behiñd намного, вообще круто получилось, жаль что на WinForms у вас, мог бы помочь если бы на Xaml перешли.

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Playback и текущий Tick #167

laika65 Mar 1, 2022

Replies: 2 comments · 28 replies

melanchall Mar 1, 2022 Maintainer

laika65 Mar 2, 2022 Author

CIRCE-EYES Mar 6, 2022

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