CMD_Utils/Music/Data.cs

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+using Discord;
+using Discord.Audio;
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace CMD_Utils.Music
+{
+    internal static class Data
+    {
+        internal static IAudioClient audioClient;
+        internal static IVoiceChannel voiceChannel;
+    }
+}

CMD_Utils/Music/Leave.cs

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+using Discord.Commands;
+using Discord.WebSocket;
+
+using PluginManager.Interfaces;
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace CMD_Utils.Music
+{
+    class Leave : DBCommand
+    {
+        public string Command => "leave";
+
+        public string Description => "Leave the voice channel";
+
+        public string Usage => "leave";
+
+        public bool canUseDM => false;
+
+        public bool canUseServer => true;
+
+        public bool requireAdmin => false;
+
+        public async void Execute(SocketCommandContext context, SocketMessage message, DiscordSocketClient client, bool isDM)
+        {
+            await Data.audioClient.StopAsync();
+            await Data.voiceChannel.DisconnectAsync();
+        }
+    }
+}

CMD_Utils/Music/Pause.cs

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+using Discord.Commands;
+using Discord.WebSocket;
+
+using PluginManager.Interfaces;
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace CMD_Utils.Music
+{
+    class Pause : DBCommand
+    {
+        public string Command => "pause";
+
+        public string Description => "Pause the music";
+
+        public string Usage => "pause";
+
+        public bool canUseDM => false;
+
+        public bool canUseServer => true;
+
+        public bool requireAdmin => false;
+
+        public async void Execute(SocketCommandContext context, SocketMessage message, DiscordSocketClient client, bool isDM)
+        {
+            // to be implemented
+        }
+    }
+}

CMD_Utils/Music/Play.cs

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+using Discord;
+using Discord.Audio;
+using Discord.Commands;
+using Discord.WebSocket;
+
+using Microsoft.VisualBasic;
+
+using PluginManager.Interfaces;
+using PluginManager.Others;
+
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Channels;
+using System.Threading.Tasks;
+
+namespace CMD_Utils.Music
+{
+    class Play : DBCommand
+    {
+        public string Command => "fplay";
+
+        public string Description => "Play music from a file";
+
+        public string Usage => "fplay [name]";
+
+        public bool canUseDM => false;
+
+        public bool canUseServer => true;
+
+        public bool requireAdmin => false;
+
+        public async void Execute(SocketCommandContext context, SocketMessage message, DiscordSocketClient client, bool isDM)
+        {
+            string path = "./Music";
+            string FileName = Functions.GetArguments(message).ToArray().MergeStrings(0);
+            path += "/" + FileName + ".mp3";
+            if (!File.Exists(path))
+            {
+                Console.WriteLine("Unknown path " + path);
+                return;
+            }
+
+            // Get the audio channel
+
+            Data.voiceChannel = (context.User as IGuildUser)?.VoiceChannel;
+            if (Data.voiceChannel == null) { await context.Channel.SendMessageAsync("User must be in a voice channel, or a voice channel must be passed as an argument."); return; }
+
+            // For the next step with transmitting audio, you would want to pass this Audio Client in to a service.
+            Data.audioClient = await Data.voiceChannel.ConnectAsync();
+
+
+            // Create FFmpeg using the previous example
+            using (var ffmpeg = CreateStream(path))
+            using (var output = ffmpeg.StandardOutput.BaseStream)
+            using (var discord = Data.audioClient.CreatePCMStream(AudioApplication.Mixed))
+            {
+                try { await output.CopyToAsync(discord); }
+                finally { await discord.FlushAsync(); }
+            }
+        }
+
+        private Process CreateStream(string path)
+        {
+            return Process.Start(new ProcessStartInfo
+            {
+                FileName = "ffmpeg",
+                Arguments = $"-hide_banner -loglevel panic -i \"{path}\" -ac 2 -f s16le -ar 48000 pipe:1",
+                UseShellExecute = false,
+                RedirectStandardOutput = true,
+            });
+        }
+    }
+}