Decompiled source of YTJukebox v1.0.1

YTJukebox.dll

Decompiled a day ago
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.IO.Compression;
using System.Linq;
using System.Net;
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Runtime.Versioning;
using System.Threading.Tasks;
using BepInEx;
using FMOD;
using FMODUnity;
using HarmonyLib;
using NAudio.Wave;
using TMPro;
using Unity.Netcode;
using UnityEngine;
using UnityEngine.Events;
using UnityEngine.UI;
using YTJukebox;
using YTJukebox.NetcodePatcher;
using YTJukeboxMod;

[assembly: CompilationRelaxations(8)]
[assembly: RuntimeCompatibility(WrapNonExceptionThrows = true)]
[assembly: Debuggable(DebuggableAttribute.DebuggingModes.Default | DebuggableAttribute.DebuggingModes.DisableOptimizations | DebuggableAttribute.DebuggingModes.IgnoreSymbolStoreSequencePoints | DebuggableAttribute.DebuggingModes.EnableEditAndContinue)]
[assembly: AssemblyTitle("YTJukebox")]
[assembly: AssemblyDescription("")]
[assembly: AssemblyConfiguration("")]
[assembly: AssemblyCompany("")]
[assembly: AssemblyProduct("YTJukebox")]
[assembly: AssemblyCopyright("")]
[assembly: AssemblyTrademark("")]
[assembly: ComVisible(false)]
[assembly: Guid("9b1282b3-5681-43cf-8520-b19bac8ef9e5")]
[assembly: AssemblyFileVersion("1.0.0.0")]
[assembly: TargetFramework(".NETFramework,Version=v4.8", FrameworkDisplayName = ".NET Framework 4.8")]
[assembly: AssemblyVersion("1.0.0.0")]
[module: NetcodePatchedAssembly]
namespace YTJukebox
{
	public class YTNetworkManager : NetworkBehaviour
	{
		private int playersDownloaded = 0;

		public static YTNetworkManager instance;

		public static bool skipStop;

		private void Awake()
		{
			instance = this;
			skipStop = false;
		}

		[ServerRpc(RequireOwnership = false)]
		public void TriggerDownloadServerRpc(string inputURL, ulong JukeboxID)
		{
			//IL_0024: Unknown result type (might be due to invalid IL or missing references)
			//IL_002e: Invalid comparison between Unknown and I4
			//IL_00d7: Unknown result type (might be due to invalid IL or missing references)
			//IL_00e1: Invalid comparison between Unknown and I4
			//IL_005f: Unknown result type (might be due to invalid IL or missing references)
			//IL_0068: Unknown result type (might be due to invalid IL or missing references)
			//IL_006d: Unknown result type (might be due to invalid IL or missing references)
			//IL_0088: Unknown result type (might be due to invalid IL or missing references)
			//IL_008e: Unknown result type (might be due to invalid IL or missing references)
			//IL_00af: Unknown result type (might be due to invalid IL or missing references)
			//IL_00c7: Unknown result type (might be due to invalid IL or missing references)
			NetworkManager networkManager = ((NetworkBehaviour)this).NetworkManager;
			if (networkManager == null || !networkManager.IsListening)
			{
				return;
			}
			if ((int)base.__rpc_exec_stage != 1 && (networkManager.IsClient || networkManager.IsHost))
			{
				ServerRpcParams val = default(ServerRpcParams);
				FastBufferWriter val2 = ((NetworkBehaviour)this).__beginSendServerRpc(787366507u, val, (RpcDelivery)0);
				bool flag = inputURL != null;
				((FastBufferWriter)(ref val2)).WriteValueSafe<bool>(ref flag, default(ForPrimitives));
				if (flag)
				{
					((FastBufferWriter)(ref val2)).WriteValueSafe(inputURL, false);
				}
				BytePacker.WriteValueBitPacked(val2, JukeboxID);
				((NetworkBehaviour)this).__endSendServerRpc(ref val2, 787366507u, val, (RpcDelivery)0);
			}
			if ((int)base.__rpc_exec_stage == 1 && (networkManager.IsServer || networkManager.IsHost) && (((NetworkBehaviour)this).IsServer || ((NetworkBehaviour)this).IsHost))
			{
				BroadcastDownloadClientRpc(inputURL, JukeboxID);
			}
		}

		[ClientRpc]
		private void BroadcastDownloadClientRpc(string inputURL, ulong JukeboxID)
		{
			//IL_0024: Unknown result type (might be due to invalid IL or missing references)
			//IL_002e: Invalid comparison between Unknown and I4
			//IL_00d7: Unknown result type (might be due to invalid IL or missing references)
			//IL_00e1: Invalid comparison between Unknown and I4
			//IL_005f: Unknown result type (might be due to invalid IL or missing references)
			//IL_0068: Unknown result type (might be due to invalid IL or missing references)
			//IL_006d: Unknown result type (might be due to invalid IL or missing references)
			//IL_0088: Unknown result type (might be due to invalid IL or missing references)
			//IL_008e: Unknown result type (might be due to invalid IL or missing references)
			//IL_00af: Unknown result type (might be due to invalid IL or missing references)
			//IL_00c7: Unknown result type (might be due to invalid IL or missing references)
			NetworkManager networkManager = ((NetworkBehaviour)this).NetworkManager;
			if (networkManager == null || !networkManager.IsListening)
			{
				return;
			}
			if ((int)base.__rpc_exec_stage != 2 && (networkManager.IsServer || networkManager.IsHost))
			{
				ClientRpcParams val = default(ClientRpcParams);
				FastBufferWriter val2 = ((NetworkBehaviour)this).__beginSendClientRpc(1072384151u, val, (RpcDelivery)0);
				bool flag = inputURL != null;
				((FastBufferWriter)(ref val2)).WriteValueSafe<bool>(ref flag, default(ForPrimitives));
				if (flag)
				{
					((FastBufferWriter)(ref val2)).WriteValueSafe(inputURL, false);
				}
				BytePacker.WriteValueBitPacked(val2, JukeboxID);
				((NetworkBehaviour)this).__endSendClientRpc(ref val2, 1072384151u, val, (RpcDelivery)0);
			}
			if ((int)base.__rpc_exec_stage == 2 && (networkManager.IsClient || networkManager.IsHost))
			{
				StartDownloadFileAsync(inputURL, JukeboxID);
			}
		}

		private async void StartDownloadFileAsync(string inputURL, ulong JukeboxID)
		{
			Log.Info("Download started on client for URL: " + inputURL);
			NotifyDownloadCompleteServerRpc(JukeboxID, await Download.GetCustomSong(inputURL));
		}

		[ClientRpc]
		public void StopTrackClientRpc()
		{
			//IL_0024: Unknown result type (might be due to invalid IL or missing references)
			//IL_002e: Invalid comparison between Unknown and I4
			//IL_008c: Unknown result type (might be due to invalid IL or missing references)
			//IL_0096: Invalid comparison between Unknown and I4
			//IL_005f: Unknown result type (might be due to invalid IL or missing references)
			//IL_0068: Unknown result type (might be due to invalid IL or missing references)
			//IL_006d: Unknown result type (might be due to invalid IL or missing references)
			//IL_007c: Unknown result type (might be due to invalid IL or missing references)
			NetworkManager networkManager = ((NetworkBehaviour)this).NetworkManager;
			if (networkManager != null && networkManager.IsListening)
			{
				if ((int)base.__rpc_exec_stage != 2 && (networkManager.IsServer || networkManager.IsHost))
				{
					ClientRpcParams val = default(ClientRpcParams);
					FastBufferWriter val2 = ((NetworkBehaviour)this).__beginSendClientRpc(1874522741u, val, (RpcDelivery)0);
					((NetworkBehaviour)this).__endSendClientRpc(ref val2, 1874522741u, val, (RpcDelivery)0);
				}
				if ((int)base.__rpc_exec_stage == 2 && (networkManager.IsClient || networkManager.IsHost))
				{
					Audio.StopCustomTrack();
				}
			}
		}

		[ClientRpc]
		public void ChangeVolumeClientRpc(byte v)
		{
			//IL_0024: Unknown result type (might be due to invalid IL or missing references)
			//IL_002e: Invalid comparison between Unknown and I4
			//IL_00a7: Unknown result type (might be due to invalid IL or missing references)
			//IL_00b1: Invalid comparison between Unknown and I4
			//IL_005f: Unknown result type (might be due to invalid IL or missing references)
			//IL_0068: Unknown result type (might be due to invalid IL or missing references)
			//IL_006d: Unknown result type (might be due to invalid IL or missing references)
			//IL_007d: Unknown result type (might be due to invalid IL or missing references)
			//IL_0083: Unknown result type (might be due to invalid IL or missing references)
			//IL_0097: Unknown result type (might be due to invalid IL or missing references)
			NetworkManager networkManager = ((NetworkBehaviour)this).NetworkManager;
			if (networkManager != null && networkManager.IsListening)
			{
				if ((int)base.__rpc_exec_stage != 2 && (networkManager.IsServer || networkManager.IsHost))
				{
					ClientRpcParams val = default(ClientRpcParams);
					FastBufferWriter val2 = ((NetworkBehaviour)this).__beginSendClientRpc(945115242u, val, (RpcDelivery)0);
					((FastBufferWriter)(ref val2)).WriteValueSafe<byte>(ref v, default(ForPrimitives));
					((NetworkBehaviour)this).__endSendClientRpc(ref val2, 945115242u, val, (RpcDelivery)0);
				}
				if ((int)base.__rpc_exec_stage == 2 && (networkManager.IsClient || networkManager.IsHost))
				{
					Audio.ChangeVolume(v);
				}
			}
		}

		[ServerRpc(RequireOwnership = false)]
		private void NotifyDownloadCompleteServerRpc(ulong JukeboxID, bool success)
		{
			//IL_0024: Unknown result type (might be due to invalid IL or missing references)
			//IL_002e: Invalid comparison between Unknown and I4
			//IL_00b4: Unknown result type (might be due to invalid IL or missing references)
			//IL_00be: Invalid comparison between Unknown and I4
			//IL_005f: Unknown result type (might be due to invalid IL or missing references)
			//IL_0068: Unknown result type (might be due to invalid IL or missing references)
			//IL_006d: Unknown result type (might be due to invalid IL or missing references)
			//IL_0071: Unknown result type (might be due to invalid IL or missing references)
			//IL_008a: Unknown result type (might be due to invalid IL or missing references)
			//IL_0090: Unknown result type (might be due to invalid IL or missing references)
			//IL_00a4: Unknown result type (might be due to invalid IL or missing references)
			NetworkManager networkManager = ((NetworkBehaviour)this).NetworkManager;
			if (networkManager == null || !networkManager.IsListening)
			{
				return;
			}
			if ((int)base.__rpc_exec_stage != 1 && (networkManager.IsClient || networkManager.IsHost))
			{
				ServerRpcParams val = default(ServerRpcParams);
				FastBufferWriter val2 = ((NetworkBehaviour)this).__beginSendServerRpc(2223158115u, val, (RpcDelivery)0);
				BytePacker.WriteValueBitPacked(val2, JukeboxID);
				((FastBufferWriter)(ref val2)).WriteValueSafe<bool>(ref success, default(ForPrimitives));
				((NetworkBehaviour)this).__endSendServerRpc(ref val2, 2223158115u, val, (RpcDelivery)0);
			}
			if ((int)base.__rpc_exec_stage == 1 && (networkManager.IsServer || networkManager.IsHost) && (((NetworkBehaviour)this).IsServer || ((NetworkBehaviour)this).IsHost) && success)
			{
				playersDownloaded++;
				if (playersDownloaded == PlayerManager.Instance.players.Count)
				{
					Log.Info("All players have completed the download.");
					playersDownloaded = 0;
					PlayCustomTrackClientRpc(JukeboxID);
				}
			}
		}

		[ClientRpc]
		private void PlayCustomTrackClientRpc(ulong JukeboxID)
		{
			//IL_0024: Unknown result type (might be due to invalid IL or missing references)
			//IL_002e: Invalid comparison between Unknown and I4
			//IL_0099: Unknown result type (might be due to invalid IL or missing references)
			//IL_00a3: Invalid comparison between Unknown and I4
			//IL_005f: Unknown result type (might be due to invalid IL or missing references)
			//IL_0068: Unknown result type (might be due to invalid IL or missing references)
			//IL_006d: Unknown result type (might be due to invalid IL or missing references)
			//IL_0071: Unknown result type (might be due to invalid IL or missing references)
			//IL_0089: Unknown result type (might be due to invalid IL or missing references)
			NetworkManager networkManager = ((NetworkBehaviour)this).NetworkManager;
			if (networkManager != null && networkManager.IsListening)
			{
				if ((int)base.__rpc_exec_stage != 2 && (networkManager.IsServer || networkManager.IsHost))
				{
					ClientRpcParams val = default(ClientRpcParams);
					FastBufferWriter val2 = ((NetworkBehaviour)this).__beginSendClientRpc(1543763232u, val, (RpcDelivery)0);
					BytePacker.WriteValueBitPacked(val2, JukeboxID);
					((NetworkBehaviour)this).__endSendClientRpc(ref val2, 1543763232u, val, (RpcDelivery)0);
				}
				if ((int)base.__rpc_exec_stage == 2 && (networkManager.IsClient || networkManager.IsHost))
				{
					GameObject inputJukebox = ReturnObjectFromID(JukeboxID);
					Audio.PlayCustomTrack(inputJukebox);
				}
			}
		}

		[ClientRpc]
		public void SetSyncClientRpc(ulong JukeboxID, bool input)
		{
			//IL_0024: Unknown result type (might be due to invalid IL or missing references)
			//IL_002e: Invalid comparison between Unknown and I4
			//IL_00b4: Unknown result type (might be due to invalid IL or missing references)
			//IL_00be: Invalid comparison between Unknown and I4
			//IL_005f: Unknown result type (might be due to invalid IL or missing references)
			//IL_0068: Unknown result type (might be due to invalid IL or missing references)
			//IL_006d: Unknown result type (might be due to invalid IL or missing references)
			//IL_0071: Unknown result type (might be due to invalid IL or missing references)
			//IL_008a: Unknown result type (might be due to invalid IL or missing references)
			//IL_0090: Unknown result type (might be due to invalid IL or missing references)
			//IL_00a4: Unknown result type (might be due to invalid IL or missing references)
			NetworkManager networkManager = ((NetworkBehaviour)this).NetworkManager;
			if (networkManager == null || !networkManager.IsListening)
			{
				return;
			}
			if ((int)base.__rpc_exec_stage != 2 && (networkManager.IsServer || networkManager.IsHost))
			{
				ClientRpcParams val = default(ClientRpcParams);
				FastBufferWriter val2 = ((NetworkBehaviour)this).__beginSendClientRpc(404505024u, val, (RpcDelivery)0);
				BytePacker.WriteValueBitPacked(val2, JukeboxID);
				((FastBufferWriter)(ref val2)).WriteValueSafe<bool>(ref input, default(ForPrimitives));
				((NetworkBehaviour)this).__endSendClientRpc(ref val2, 404505024u, val, (RpcDelivery)0);
			}
			if ((int)base.__rpc_exec_stage != 2 || (!networkManager.IsClient && !networkManager.IsHost))
			{
				return;
			}
			List<GameObject> allJukeboxes = Audio.GetAllJukeboxes();
			skipStop = true;
			if (input)
			{
				foreach (GameObject item2 in allJukeboxes)
				{
					Jukebox component = item2.GetComponent<Jukebox>();
					component.PlayerStopServerRpc();
				}
				foreach (GameObject jukebox in Audio.jukeboxList)
				{
					Jukebox component2 = jukebox.GetComponent<Jukebox>();
					component2.PlayerPlayServerRpc((byte)99);
				}
				Audio.jukeboxList.Clear();
				Audio.jukeboxList = allJukeboxes;
			}
			else
			{
				foreach (GameObject item3 in allJukeboxes)
				{
					Jukebox component3 = item3.GetComponent<Jukebox>();
					component3.PlayerStopServerRpc();
				}
				foreach (GameObject jukebox2 in Audio.jukeboxList)
				{
					Jukebox component4 = jukebox2.GetComponent<Jukebox>();
					component4.PlayerPlayServerRpc((byte)99);
				}
				GameObject item = ReturnObjectFromID(JukeboxID);
				Audio.jukeboxList.Clear();
				Audio.jukeboxList.Add(item);
			}
			skipStop = false;
		}

		private GameObject ReturnObjectFromID(ulong JukeboxID)
		{
			NetworkObject val = NetworkManager.Singleton.SpawnManager.SpawnedObjects[JukeboxID];
			return ((Component)val).gameObject;
		}

		protected override void __initializeVariables()
		{
			((NetworkBehaviour)this).__initializeVariables();
		}

		protected override void __initializeRpcs()
		{
			//IL_000d: Unknown result type (might be due to invalid IL or missing references)
			//IL_001c: Expected O, but got Unknown
			//IL_0029: Unknown result type (might be due to invalid IL or missing references)
			//IL_0038: Expected O, but got Unknown
			//IL_0045: Unknown result type (might be due to invalid IL or missing references)
			//IL_0054: Expected O, but got Unknown
			//IL_0061: Unknown result type (might be due to invalid IL or missing references)
			//IL_0070: Expected O, but got Unknown
			//IL_007d: Unknown result type (might be due to invalid IL or missing references)
			//IL_008c: Expected O, but got Unknown
			//IL_0099: Unknown result type (might be due to invalid IL or missing references)
			//IL_00a8: Expected O, but got Unknown
			//IL_00b5: Unknown result type (might be due to invalid IL or missing references)
			//IL_00c4: Expected O, but got Unknown
			((NetworkBehaviour)this).__registerRpc(787366507u, new RpcReceiveHandler(__rpc_handler_787366507), "TriggerDownloadServerRpc");
			((NetworkBehaviour)this).__registerRpc(1072384151u, new RpcReceiveHandler(__rpc_handler_1072384151), "BroadcastDownloadClientRpc");
			((NetworkBehaviour)this).__registerRpc(1874522741u, new RpcReceiveHandler(__rpc_handler_1874522741), "StopTrackClientRpc");
			((NetworkBehaviour)this).__registerRpc(945115242u, new RpcReceiveHandler(__rpc_handler_945115242), "ChangeVolumeClientRpc");
			((NetworkBehaviour)this).__registerRpc(2223158115u, new RpcReceiveHandler(__rpc_handler_2223158115), "NotifyDownloadCompleteServerRpc");
			((NetworkBehaviour)this).__registerRpc(1543763232u, new RpcReceiveHandler(__rpc_handler_1543763232), "PlayCustomTrackClientRpc");
			((NetworkBehaviour)this).__registerRpc(404505024u, new RpcReceiveHandler(__rpc_handler_404505024), "SetSyncClientRpc");
			((NetworkBehaviour)this).__initializeRpcs();
		}

		private static void __rpc_handler_787366507(NetworkBehaviour target, FastBufferReader reader, __RpcParams rpcParams)
		{
			//IL_002f: Unknown result type (might be due to invalid IL or missing references)
			//IL_0035: Unknown result type (might be due to invalid IL or missing references)
			//IL_005b: Unknown result type (might be due to invalid IL or missing references)
			//IL_006e: Unknown result type (might be due to invalid IL or missing references)
			//IL_008c: Unknown result type (might be due to invalid IL or missing references)
			NetworkManager networkManager = target.NetworkManager;
			if (networkManager != null && networkManager.IsListening)
			{
				bool flag = default(bool);
				((FastBufferReader)(ref reader)).ReadValueSafe<bool>(ref flag, default(ForPrimitives));
				string inputURL = null;
				if (flag)
				{
					((FastBufferReader)(ref reader)).ReadValueSafe(ref inputURL, false);
				}
				ulong jukeboxID = default(ulong);
				ByteUnpacker.ReadValueBitPacked(reader, ref jukeboxID);
				target.__rpc_exec_stage = (__RpcExecStage)1;
				((YTNetworkManager)(object)target).TriggerDownloadServerRpc(inputURL, jukeboxID);
				target.__rpc_exec_stage = (__RpcExecStage)0;
			}
		}

		private static void __rpc_handler_1072384151(NetworkBehaviour target, FastBufferReader reader, __RpcParams rpcParams)
		{
			//IL_002f: Unknown result type (might be due to invalid IL or missing references)
			//IL_0035: Unknown result type (might be due to invalid IL or missing references)
			//IL_005b: Unknown result type (might be due to invalid IL or missing references)
			//IL_006e: Unknown result type (might be due to invalid IL or missing references)
			//IL_008c: Unknown result type (might be due to invalid IL or missing references)
			NetworkManager networkManager = target.NetworkManager;
			if (networkManager != null && networkManager.IsListening)
			{
				bool flag = default(bool);
				((FastBufferReader)(ref reader)).ReadValueSafe<bool>(ref flag, default(ForPrimitives));
				string inputURL = null;
				if (flag)
				{
					((FastBufferReader)(ref reader)).ReadValueSafe(ref inputURL, false);
				}
				ulong jukeboxID = default(ulong);
				ByteUnpacker.ReadValueBitPacked(reader, ref jukeboxID);
				target.__rpc_exec_stage = (__RpcExecStage)2;
				((YTNetworkManager)(object)target).BroadcastDownloadClientRpc(inputURL, jukeboxID);
				target.__rpc_exec_stage = (__RpcExecStage)0;
			}
		}

		private static void __rpc_handler_1874522741(NetworkBehaviour target, FastBufferReader reader, __RpcParams rpcParams)
		{
			//IL_0029: Unknown result type (might be due to invalid IL or missing references)
			//IL_003f: Unknown result type (might be due to invalid IL or missing references)
			NetworkManager networkManager = target.NetworkManager;
			if (networkManager != null && networkManager.IsListening)
			{
				target.__rpc_exec_stage = (__RpcExecStage)2;
				((YTNetworkManager)(object)target).StopTrackClientRpc();
				target.__rpc_exec_stage = (__RpcExecStage)0;
			}
		}

		private static void __rpc_handler_945115242(NetworkBehaviour target, FastBufferReader reader, __RpcParams rpcParams)
		{
			//IL_002f: Unknown result type (might be due to invalid IL or missing references)
			//IL_0035: Unknown result type (might be due to invalid IL or missing references)
			//IL_0044: Unknown result type (might be due to invalid IL or missing references)
			//IL_005e: Unknown result type (might be due to invalid IL or missing references)
			NetworkManager networkManager = target.NetworkManager;
			if (networkManager != null && networkManager.IsListening)
			{
				byte v = default(byte);
				((FastBufferReader)(ref reader)).ReadValueSafe<byte>(ref v, default(ForPrimitives));
				target.__rpc_exec_stage = (__RpcExecStage)2;
				((YTNetworkManager)(object)target).ChangeVolumeClientRpc(v);
				target.__rpc_exec_stage = (__RpcExecStage)0;
			}
		}

		private static void __rpc_handler_2223158115(NetworkBehaviour target, FastBufferReader reader, __RpcParams rpcParams)
		{
			//IL_0023: Unknown result type (might be due to invalid IL or missing references)
			//IL_003c: Unknown result type (might be due to invalid IL or missing references)
			//IL_0042: Unknown result type (might be due to invalid IL or missing references)
			//IL_0051: Unknown result type (might be due to invalid IL or missing references)
			//IL_006f: Unknown result type (might be due to invalid IL or missing references)
			NetworkManager networkManager = target.NetworkManager;
			if (networkManager != null && networkManager.IsListening)
			{
				ulong jukeboxID = default(ulong);
				ByteUnpacker.ReadValueBitPacked(reader, ref jukeboxID);
				bool success = default(bool);
				((FastBufferReader)(ref reader)).ReadValueSafe<bool>(ref success, default(ForPrimitives));
				target.__rpc_exec_stage = (__RpcExecStage)1;
				((YTNetworkManager)(object)target).NotifyDownloadCompleteServerRpc(jukeboxID, success);
				target.__rpc_exec_stage = (__RpcExecStage)0;
			}
		}

		private static void __rpc_handler_1543763232(NetworkBehaviour target, FastBufferReader reader, __RpcParams rpcParams)
		{
			//IL_0023: Unknown result type (might be due to invalid IL or missing references)
			//IL_0036: Unknown result type (might be due to invalid IL or missing references)
			//IL_0050: Unknown result type (might be due to invalid IL or missing references)
			NetworkManager networkManager = target.NetworkManager;
			if (networkManager != null && networkManager.IsListening)
			{
				ulong jukeboxID = default(ulong);
				ByteUnpacker.ReadValueBitPacked(reader, ref jukeboxID);
				target.__rpc_exec_stage = (__RpcExecStage)2;
				((YTNetworkManager)(object)target).PlayCustomTrackClientRpc(jukeboxID);
				target.__rpc_exec_stage = (__RpcExecStage)0;
			}
		}

		private static void __rpc_handler_404505024(NetworkBehaviour target, FastBufferReader reader, __RpcParams rpcParams)
		{
			//IL_0023: Unknown result type (might be due to invalid IL or missing references)
			//IL_003c: Unknown result type (might be due to invalid IL or missing references)
			//IL_0042: Unknown result type (might be due to invalid IL or missing references)
			//IL_0051: Unknown result type (might be due to invalid IL or missing references)
			//IL_006f: Unknown result type (might be due to invalid IL or missing references)
			NetworkManager networkManager = target.NetworkManager;
			if (networkManager != null && networkManager.IsListening)
			{
				ulong jukeboxID = default(ulong);
				ByteUnpacker.ReadValueBitPacked(reader, ref jukeboxID);
				bool input = default(bool);
				((FastBufferReader)(ref reader)).ReadValueSafe<bool>(ref input, default(ForPrimitives));
				target.__rpc_exec_stage = (__RpcExecStage)2;
				((YTNetworkManager)(object)target).SetSyncClientRpc(jukeboxID, input);
				target.__rpc_exec_stage = (__RpcExecStage)0;
			}
		}

		protected internal override string __getTypeName()
		{
			return "YTNetworkManager";
		}
	}
}
namespace YTJukeboxMod
{
	internal static class Audio
	{
		private static IWavePlayer waveOut;

		private static MediaFoundationReader mediaReader;

		private static StereoVolumeSampleProvider stereoProvider;

		public static GameObject activeJukebox;

		public static List<GameObject> jukeboxList;

		public static GameObject localPlayer;

		private static readonly float maxDistance = 80f;

		public static void OnWorldLoad()
		{
			//IL_000e: Unknown result type (might be due to invalid IL or missing references)
			//IL_0013: Unknown result type (might be due to invalid IL or missing references)
			//IL_001c: Unknown result type (might be due to invalid IL or missing references)
			//IL_0025: Expected O, but got Unknown
			if (waveOut == null)
			{
				WaveOutEvent val = new WaveOutEvent
				{
					DesiredLatency = 50,
					NumberOfBuffers = 8
				};
				waveOut = (IWavePlayer)(object)val;
			}
			GetLocalPlayer().ContinueWith(delegate(Task<GameObject> task)
			{
				localPlayer = task.Result;
			});
			jukeboxList = new List<GameObject>();
		}

		public static void SetActiveJukebox(Jukebox JukeboxComponent)
		{
			activeJukebox = ((Component)JukeboxComponent).gameObject;
		}

		public static void StopCustomTrack()
		{
			if (waveOut != null && mediaReader != null)
			{
				waveOut.Stop();
				((Stream)(object)mediaReader).Dispose();
				((IDisposable)waveOut).Dispose();
				Log.Info("Track stopped.");
			}
		}

		public static void PlayCustomTrack(GameObject inputJukebox)
		{
			//IL_0053: Unknown result type (might be due to invalid IL or missing references)
			//IL_005d: Expected O, but got Unknown
			Jukebox component = inputJukebox.GetComponent<Jukebox>();
			jukeboxList.Clear();
			jukeboxList.Add(inputJukebox);
			ChangeVolume(component.volume.Value);
			component.PlayerPlayServerRpc((byte)99);
			if (File.Exists(ModPaths.customSong))
			{
				StopCustomTrack();
				mediaReader = new MediaFoundationReader(ModPaths.customSong);
				stereoProvider = new StereoVolumeSampleProvider(WaveExtensionMethods.ToSampleProvider((IWaveProvider)(object)mediaReader))
				{
					LeftVolume = 1f,
					RightVolume = 1f
				};
				WaveExtensionMethods.Init(waveOut, (ISampleProvider)(object)stereoProvider, false);
				waveOut.Play();
			}
		}

		public static void ChangeVolume(byte Volume)
		{
			if (waveOut != null)
			{
				float volume = Mathf.Clamp01((float)(int)Volume / 100f);
				waveOut.Volume = volume;
			}
		}

		public static void UpdateAudioSpatial()
		{
			//IL_0030: Unknown result type (might be due to invalid IL or missing references)
			//IL_0035: Unknown result type (might be due to invalid IL or missing references)
			//IL_0077: Unknown result type (might be due to invalid IL or missing references)
			//IL_007c: Unknown result type (might be due to invalid IL or missing references)
			//IL_008c: Unknown result type (might be due to invalid IL or missing references)
			//IL_008d: Unknown result type (might be due to invalid IL or missing references)
			//IL_00de: Unknown result type (might be due to invalid IL or missing references)
			//IL_00df: Unknown result type (might be due to invalid IL or missing references)
			//IL_00e1: Unknown result type (might be due to invalid IL or missing references)
			//IL_00e6: Unknown result type (might be due to invalid IL or missing references)
			//IL_00ea: Unknown result type (might be due to invalid IL or missing references)
			//IL_00ef: Unknown result type (might be due to invalid IL or missing references)
			//IL_00f1: Unknown result type (might be due to invalid IL or missing references)
			//IL_00fd: Unknown result type (might be due to invalid IL or missing references)
			if (!((Object)(object)localPlayer != (Object)null) || jukeboxList.Count <= 0)
			{
				return;
			}
			Vector3 position = localPlayer.transform.position;
			float num = 0f;
			float num2 = 0f;
			foreach (GameObject jukebox in jukeboxList)
			{
				if ((Object)(object)jukebox != (Object)null)
				{
					Vector3 position2 = jukebox.transform.position;
					Jukebox component = jukebox.GetComponent<Jukebox>();
					float num3 = Mathf.Max(2f, Vector3.Distance(position, position2));
					float num4 = Mathf.Clamp01((num3 - 2f) / (maxDistance - 2f));
					float num5 = Mathf.Pow(1f - num4, 10f) * ((float)(int)component.volume.Value / 100f);
					Vector3 val = position - position2;
					Vector3 normalized = ((Vector3)(ref val)).normalized;
					float num6 = Vector3.Dot(normalized, localPlayer.transform.right);
					float num7 = num5 * Mathf.Clamp01(1f - num6);
					float num8 = num5 * Mathf.Clamp01(1f + num6);
					num = Mathf.Clamp01(num + num7);
					num2 = Mathf.Clamp01(num2 + num8);
				}
			}
			stereoProvider.LeftVolume = num;
			stereoProvider.RightVolume = num2;
		}

		public static List<GameObject> GetAllJukeboxes()
		{
			Type typeFromHandle = typeof(JukeboxManager);
			FieldInfo field = typeFromHandle.GetField("_jukeboxes", BindingFlags.Instance | BindingFlags.NonPublic);
			Dictionary<ushort, Jukebox> dictionary = field.GetValue(JukeboxManager.Instance) as Dictionary<ushort, Jukebox>;
			List<GameObject> list = new List<GameObject>();
			foreach (KeyValuePair<ushort, Jukebox> item in dictionary)
			{
				Jukebox value = item.Value;
				if ((Object)(object)value != (Object)null)
				{
					GameObject gameObject = ((Component)value).gameObject;
					list.Add(gameObject);
				}
			}
			return list;
		}

		public static async Task<GameObject> GetLocalPlayer()
		{
			GameObject localPlayer = null;
			while ((Object)(object)localPlayer == (Object)null)
			{
				PlayerNet[] players = Object.FindObjectsOfType<PlayerNet>();
				PlayerNet[] array = players;
				foreach (PlayerNet playerNet in array)
				{
					NetworkBehaviour networkBehaviour = ((Component)playerNet).GetComponent<NetworkBehaviour>();
					if ((Object)(object)networkBehaviour != (Object)null && networkBehaviour.IsOwner)
					{
						localPlayer = ((Component)playerNet).gameObject;
						break;
					}
				}
				if ((Object)(object)localPlayer == (Object)null)
				{
					await Task.Delay(500);
				}
			}
			return localPlayer;
		}
	}
	public class StereoVolumeSampleProvider : ISampleProvider
	{
		private readonly ISampleProvider source;

		private float leftVolume = 1f;

		private float rightVolume = 1f;

		public float LeftVolume
		{
			get
			{
				return leftVolume;
			}
			set
			{
				leftVolume = Math.Max(0f, Math.Min(1f, value));
			}
		}

		public float RightVolume
		{
			get
			{
				return rightVolume;
			}
			set
			{
				rightVolume = Math.Max(0f, Math.Min(1f, value));
			}
		}

		public WaveFormat WaveFormat => source.WaveFormat;

		public StereoVolumeSampleProvider(ISampleProvider source)
		{
			if (source.WaveFormat.Channels != 2)
			{
				throw new ArgumentException("Source sample provider must be stereo");
			}
			this.source = source;
		}

		public int Read(float[] buffer, int offset, int count)
		{
			int num = source.Read(buffer, offset, count);
			for (int i = 0; i < num; i += 2)
			{
				buffer[offset + i + 1] *= leftVolume;
				buffer[offset + i] *= rightVolume;
			}
			return num;
		}
	}
	public static class Download
	{
		private static string lastURL;

		private static readonly string ffmpegURL = "https://www.gyan.dev/ffmpeg/builds/ffmpeg-release-essentials.zip";

		private static readonly string ytDlpURL = "https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp.exe";

		public static async Task GetDependencies()
		{
			await DownloadYtDlp();
			await DownloadFfmpeg();
		}

		private static async Task DownloadYtDlp()
		{
			try
			{
				Log.Info("Downloading yt-dlp...");
				using (WebClient webClient = new WebClient())
				{
					await webClient.DownloadFileTaskAsync(new Uri(ytDlpURL), ModPaths.yt_dlp);
				}
				Log.Info("yt-dlp downloaded successfully!");
			}
			catch (Exception ex2)
			{
				Exception ex = ex2;
				Log.Error("Failed to download yt-dlp: " + ex.Message);
			}
		}

		private static async Task DownloadFfmpeg()
		{
			try
			{
				string ffmpegTempZipPath = Path.Combine(ModPaths.dependencies, "ffmpeg.zip");
				Log.Info("Downloading ffmpeg...");
				using (WebClient webClient = new WebClient())
				{
					await webClient.DownloadFileTaskAsync(new Uri(ffmpegURL), ffmpegTempZipPath);
				}
				Log.Info("ffmpeg downloaded successfully!");
				await Task.Run(delegate
				{
					ExtractFfmpeg(ffmpegTempZipPath, ModPaths.dependencies);
				});
				File.Delete(ffmpegTempZipPath);
			}
			catch (Exception ex2)
			{
				Exception ex = ex2;
				Log.Error("Failed to download ffmpeg: " + ex.Message);
			}
		}

		private static void ExtractFfmpeg(string zipPath, string extractPath)
		{
			try
			{
				Log.Info("Extracting ffmpeg...");
				using ZipArchive zipArchive = ZipFile.OpenRead(zipPath);
				ZipArchiveEntry zipArchiveEntry = zipArchive.Entries.FirstOrDefault((ZipArchiveEntry entry) => entry.Name.Equals("ffmpeg.exe", StringComparison.OrdinalIgnoreCase));
				if (zipArchiveEntry != null)
				{
					string destinationFileName = Path.Combine(extractPath, "ffmpeg.exe");
					zipArchiveEntry.ExtractToFile(destinationFileName, overwrite: true);
					Log.Info("ffmpeg.exe extracted successfully!");
				}
				else
				{
					Log.Error("ffmpeg.exe not found in the zip archive!");
				}
			}
			catch (Exception ex)
			{
				Log.Error("Failed to extract ffmpeg: " + ex.Message);
			}
		}

		public static async Task<bool> GetCustomSong(string URLInput)
		{
			if (!URLInput.StartsWith("http"))
			{
				return false;
			}
			if (lastURL != null && lastURL == URLInput && File.Exists(ModPaths.customSong))
			{
				return true;
			}
			Log.Info("Play button pressed with URL: " + URLInput);
			if (File.Exists(ModPaths.customSong))
			{
				File.Delete(ModPaths.customSong);
			}
			ProcessStartInfo ytDlpProcess = new ProcessStartInfo
			{
				FileName = ModPaths.yt_dlp,
				Arguments = "--ffmpeg-location \"" + ModPaths.ffmpeg + "\" -f bestaudio -x --audio-format wav -o \"" + ModPaths.customSong + "\" " + URLInput,
				UseShellExecute = false,
				RedirectStandardOutput = true,
				RedirectStandardError = true,
				CreateNoWindow = true
			};
			using Process process = new Process();
			process.StartInfo = ytDlpProcess;
			process.Start();
			string output = await process.StandardOutput.ReadToEndAsync();
			string error = await process.StandardError.ReadToEndAsync();
			process.WaitForExit();
			if (process.ExitCode == 0)
			{
				lastURL = URLInput;
				Log.Info("yt-dlp finished successfully");
				Log.Info("Output: " + output);
				return true;
			}
			Log.Error("yt-dlp encountered an error: " + error);
			return false;
		}
	}
	internal static class HarmonyPatches
	{
		[HarmonyPatch(/*Could not decode attribute arguments.*/)]
		private class NetManagerPatch
		{
			private static void Postfix(ref SteamManager __instance)
			{
				((Component)__instance).GetComponent<NetworkManager>().AddNetworkPrefab(Plugin.instance.ytRpcPrefab);
			}
		}

		[HarmonyPatch(/*Could not decode attribute arguments.*/)]
		private class PlayerManagerStartPatch
		{
			private static void Postfix()
			{
				main.OnWorldLoad();
			}
		}

		[HarmonyPatch(/*Could not decode attribute arguments.*/)]
		private class LeaveWorldPatch
		{
			private static void Postfix()
			{
				Audio.StopCustomTrack();
			}
		}

		[HarmonyPatch(/*Could not decode attribute arguments.*/)]
		private class PlayPatch
		{
			private static void Postfix(byte id)
			{
				if (id != 99)
				{
					YTNetworkManager.instance.StopTrackClientRpc();
				}
			}
		}

		[HarmonyPatch(/*Could not decode attribute arguments.*/)]
		private class StopPatch
		{
			private static void Postfix()
			{
				if (!YTNetworkManager.skipStop)
				{
					YTNetworkManager.instance.StopTrackClientRpc();
				}
			}
		}

		[HarmonyPatch(/*Could not decode attribute arguments.*/)]
		private class NextPatch
		{
			private static void Postfix()
			{
				YTNetworkManager.instance.StopTrackClientRpc();
			}
		}

		[HarmonyPatch(/*Could not decode attribute arguments.*/)]
		private class PrevPatch
		{
			private static void Postfix()
			{
				YTNetworkManager.instance.StopTrackClientRpc();
			}
		}

		[HarmonyPatch(/*Could not decode attribute arguments.*/)]
		private class VolumePatch
		{
			private static void Postfix(byte v)
			{
				YTNetworkManager.instance.ChangeVolumeClientRpc(v);
			}
		}

		[HarmonyPatch(/*Could not decode attribute arguments.*/)]
		private class InteractPatch
		{
			private static void Postfix(Jukebox __instance, Event e, ushort itemDataId, uint itemId)
			{
				//IL_0001: Unknown result type (might be due to invalid IL or missing references)
				//IL_0003: Invalid comparison between Unknown and I4
				if ((int)e == 1)
				{
					Audio.activeJukebox = ((Component)__instance).gameObject;
				}
			}
		}

		[HarmonyPatch(/*Could not decode attribute arguments.*/)]
		private class SyncPatch
		{
			private static void Postfix(Jukebox __instance, bool v)
			{
				GameObject gameObject = ((Component)__instance).gameObject;
				ulong networkObjectId = gameObject.GetComponent<NetworkObject>().NetworkObjectId;
				YTNetworkManager.instance.SetSyncClientRpc(networkObjectId, v);
			}
		}

		private static Plugin main;

		public static void Init()
		{
			main = Plugin.instance;
		}
	}
	public static class ModPaths
	{
		public static string root;

		public static string customSong;

		public static string dependencies;

		public static string ffmpeg;

		public static string yt_dlp;

		public static void SetPaths()
		{
			root = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
			customSong = Path.Combine(root, "AudioTrack.wav");
			dependencies = Path.Combine(root, "Dependencies");
			ffmpeg = Path.Combine(dependencies, "ffmpeg.exe");
			yt_dlp = Path.Combine(dependencies, "yt-dlp.exe");
		}
	}
	[BepInPlugin("com.tomdom.ytjukebox", "YTJukebox", "1.0.1")]
	public class Plugin : BaseUnityPlugin
	{
		public static Plugin instance;

		public GameObject ytRpcPrefab;

		public NetworkManager networkManager;

		private void Awake()
		{
			//IL_0212: Unknown result type (might be due to invalid IL or missing references)
			//IL_0218: Expected O, but got Unknown
			ModPaths.SetPaths();
			if (!Directory.Exists(ModPaths.dependencies))
			{
				List<string> list = new List<string> { "NAudio.Core.dll", "NAudio.Wasapi.dll", "NAudio.WinMM.dll", "NAudio.dll", "ytbIcon.png", "ytnetcode" };
				Directory.CreateDirectory(ModPaths.dependencies);
				foreach (string item in list)
				{
					string text = Path.Combine(ModPaths.root, item);
					string destFileName = Path.Combine(ModPaths.dependencies, item);
					if (File.Exists(text))
					{
						File.Move(text, destFileName);
					}
				}
			}
			AppDomain.CurrentDomain.AssemblyResolve += OnAssemblyResolve;
			Type[] types = Assembly.GetExecutingAssembly().GetTypes();
			Type[] array = types;
			foreach (Type type in array)
			{
				MethodInfo[] methods = type.GetMethods(BindingFlags.Instance | BindingFlags.Static | BindingFlags.NonPublic);
				MethodInfo[] array2 = methods;
				foreach (MethodInfo methodInfo in array2)
				{
					object[] customAttributes = methodInfo.GetCustomAttributes(typeof(RuntimeInitializeOnLoadMethodAttribute), inherit: false);
					if (customAttributes.Length != 0)
					{
						methodInfo.Invoke(null, null);
					}
				}
			}
			instance = this;
			string text2 = Path.Combine(ModPaths.dependencies, "ytnetcode");
			AssetBundle val = AssetBundle.LoadFromFile(text2);
			ytRpcPrefab = val.LoadAsset<GameObject>("Assets/YTJukebox/YTNetworkManager.prefab");
			ytRpcPrefab.AddComponent<YTNetworkManager>();
			if (!File.Exists(ModPaths.yt_dlp) || !File.Exists(ModPaths.ffmpeg))
			{
				Log.Info("yt-dlp or ffmpeg not found! triggering download");
				Task.Run(async delegate
				{
					await Download.GetDependencies();
				});
			}
			HarmonyPatches.Init();
			Harmony val2 = new Harmony("com.tomdom.ytjukebox");
			val2.PatchAll();
		}

		public void OnWorldLoad()
		{
			Audio.OnWorldLoad();
			AddEmptyTrack();
			UI.CreateCustomUI();
			GameObject val = GameObject.Find("SteamNetManager");
			networkManager = val.GetComponent<NetworkManager>();
			if (networkManager.IsHost)
			{
				GameObject val2 = Object.Instantiate<GameObject>(ytRpcPrefab);
				val2.GetComponent<NetworkObject>().Spawn(false);
			}
		}

		private void Update()
		{
			if (Object.op_Implicit((Object)(object)UI.GameCanvas) && Input.GetKeyDown((KeyCode)27) && UI.Youtube.activeSelf)
			{
				UI.Youtube.SetActive(false);
				UI.Jukebox.SetActive(true);
				((Behaviour)UI.gameMenu).enabled = true;
			}
		}

		private void FixedUpdate()
		{
			Audio.UpdateAudioSpatial();
		}

		private void AddEmptyTrack()
		{
			//IL_0003: Unknown result type (might be due to invalid IL or missing references)
			//IL_0039: Unknown result type (might be due to invalid IL or missing references)
			//IL_003a: Unknown result type (might be due to invalid IL or missing references)
			//IL_0060: Unknown result type (might be due to invalid IL or missing references)
			//IL_0065: Unknown result type (might be due to invalid IL or missing references)
			//IL_006d: Unknown result type (might be due to invalid IL or missing references)
			//IL_0070: Unknown result type (might be due to invalid IL or missing references)
			//IL_0078: Unknown result type (might be due to invalid IL or missing references)
			//IL_0079: Unknown result type (might be due to invalid IL or missing references)
			//IL_007e: Unknown result type (might be due to invalid IL or missing references)
			//IL_007f: Unknown result type (might be due to invalid IL or missing references)
			//IL_0084: Unknown result type (might be due to invalid IL or missing references)
			//IL_008f: Unknown result type (might be due to invalid IL or missing references)
			//IL_009b: Expected O, but got Unknown
			GUID val = default(GUID);
			val.Data1 = -502618873;
			val.Data2 = 1190340663;
			val.Data3 = 1799067022;
			val.Data4 = -1538532083;
			GUID guid = val;
			if (!JukeboxManager.Instance.tracks.ContainsKey(99))
			{
				JukeboxManager.Instance.tracks.Add(99, new JukeboxTrack
				{
					id = 99,
					eventRef = new EventReference
					{
						Guid = guid
					},
					name = "",
					questId = 0
				});
			}
		}

		private static Assembly OnAssemblyResolve(object sender, ResolveEventArgs args)
		{
			string path = new AssemblyName(args.Name).Name + ".dll";
			string[] array = new string[2]
			{
				Path.Combine(ModPaths.root, path),
				Path.Combine(ModPaths.dependencies, path)
			};
			string[] array2 = array;
			foreach (string text in array2)
			{
				if (File.Exists(text))
				{
					return Assembly.LoadFrom(text);
				}
			}
			return null;
		}

		public void LogInfo(string message)
		{
			((BaseUnityPlugin)this).Logger.LogInfo((object)message);
		}

		public void LogError(string message)
		{
			((BaseUnityPlugin)this).Logger.LogError((object)message);
		}

		public void LogWarning(string message)
		{
			((BaseUnityPlugin)this).Logger.LogWarning((object)message);
		}
	}
	public static class Log
	{
		public static void Info(string message)
		{
			Plugin.instance.LogInfo(message);
		}

		public static void Error(string message)
		{
			Plugin.instance.LogError(message);
		}

		public static void Warning(string message)
		{
			Plugin.instance.LogWarning(message);
		}
	}
	internal static class UI
	{
		[Serializable]
		[CompilerGenerated]
		private sealed class <>c
		{
			public static readonly <>c <>9 = new <>c();

			public static Func<Sprite, bool> <>9__9_0;

			public static UnityAction <>9__9_1;

			public static Func<Sprite, bool> <>9__10_0;

			public static Func<Sprite, bool> <>9__10_1;

			public static Func<Sprite, bool> <>9__11_0;

			public static Func<TMP_FontAsset, bool> <>9__11_1;

			public static Func<TMP_FontAsset, bool> <>9__11_2;

			public static Func<Sprite, bool> <>9__12_0;

			public static Func<TMP_FontAsset, bool> <>9__12_1;

			public static UnityAction <>9__12_2;

			internal bool <CreateYTButton>b__9_0(Sprite s)
			{
				return ((Object)s).name == "btn_rectangle_01_n_bluegray";
			}

			internal void <CreateYTButton>b__9_1()
			{
				Jukebox.SetActive(false);
				Youtube.SetActive(true);
				((Behaviour)gameMenu).enabled = false;
			}

			internal bool <CreateYTUI>b__10_0(Sprite s)
			{
				return ((Object)s).name == "frame_stageframe_02_d";
			}

			internal bool <CreateYTUI>b__10_1(Sprite s)
			{
				return ((Object)s).name == "frame_listframe_01_n";
			}

			internal bool <CreateInputField>b__11_0(Sprite s)
			{
				return ((Object)s).name == "textfield_activity_0";
			}

			internal bool <CreateInputField>b__11_1(TMP_FontAsset f)
			{
				return ((Object)f).name == "Lato-Regular SDF";
			}

			internal bool <CreateInputField>b__11_2(TMP_FontAsset f)
			{
				return ((Object)f).name == "Lato-Regular SDF";
			}

			internal bool <CreatePlayButton>b__12_0(Sprite s)
			{
				return ((Object)s).name == "btn_rectangle_01_n_bluegray";
			}

			internal bool <CreatePlayButton>b__12_1(TMP_FontAsset f)
			{
				return ((Object)f).name == "Lato-Regular SDF";
			}

			internal void <CreatePlayButton>b__12_2()
			{
				if ((Object)(object)Audio.activeJukebox != (Object)null)
				{
					ulong networkObjectId = Audio.activeJukebox.GetComponent<NetworkObject>().NetworkObjectId;
					YTNetworkManager.instance.TriggerDownloadServerRpc(inputField.text, networkObjectId);
				}
				else
				{
					Log.Error("No active jukebox found when attempting to trigger download.");
				}
			}
		}

		private static GameObject JukeBoxControls;

		public static GameObject Youtube;

		public static GameObject Jukebox;

		public static GameObject GameCanvas;

		public static GameMenu gameMenu;

		private static TMP_InputField inputField;

		private static Sprite CreateSprite(string filePath)
		{
			//IL_002d: Unknown result type (might be due to invalid IL or missing references)
			//IL_003c: Unknown result type (might be due to invalid IL or missing references)
			Texture2D val = LoadTextureFromFile(filePath);
			return ((Object)(object)val != (Object)null) ? Sprite.Create(val, new Rect(0f, 0f, (float)((Texture)val).width, (float)((Texture)val).height), new Vector2(0.5f, 0.5f)) : null;
		}

		private static Texture2D LoadTextureFromFile(string filePath)
		{
			//IL_0014: Unknown result type (might be due to invalid IL or missing references)
			//IL_001a: Expected O, but got Unknown
			if (!File.Exists(filePath))
			{
				return null;
			}
			Texture2D val = new Texture2D(2, 2);
			return ImageConversion.LoadImage(val, File.ReadAllBytes(filePath)) ? val : null;
		}

		public static void CreateCustomUI()
		{
			//IL_0006: Unknown result type (might be due to invalid IL or missing references)
			//IL_0010: Expected O, but got Unknown
			Youtube = new GameObject("YoutubeUI");
			Jukebox = GameObject.Find("Common/GameCanvas/Jukebox Screen");
			GameCanvas = GameObject.Find("Common/GameCanvas");
			JukeBoxControls = GameObject.Find("Common/GameCanvas/Jukebox Screen/Panel/Controls");
			gameMenu = GameCanvas.GetComponent<GameMenu>();
			CreateYTButton();
			CreateYTUI();
		}

		private static void CreateYTButton()
		{
			//IL_0006: Unknown result type (might be due to invalid IL or missing references)
			//IL_000c: Expected O, but got Unknown
			//IL_0072: Unknown result type (might be due to invalid IL or missing references)
			//IL_0082: Unknown result type (might be due to invalid IL or missing references)
			//IL_0088: Expected O, but got Unknown
			//IL_00d2: Unknown result type (might be due to invalid IL or missing references)
			//IL_00ed: Unknown result type (might be due to invalid IL or missing references)
			//IL_00fe: Unknown result type (might be due to invalid IL or missing references)
			//IL_012c: Unknown result type (might be due to invalid IL or missing references)
			//IL_0131: Unknown result type (might be due to invalid IL or missing references)
			//IL_0137: Expected O, but got Unknown
			GameObject val = new GameObject("YtbButton");
			val.transform.SetParent(JukeBoxControls.transform, false);
			Image val2 = val.AddComponent<Image>();
			val2.sprite = ((IEnumerable<Sprite>)Resources.FindObjectsOfTypeAll<Sprite>()).FirstOrDefault((Func<Sprite, bool>)((Sprite s) => ((Object)s).name == "btn_rectangle_01_n_bluegray"));
			val2.type = (Type)1;
			val.GetComponent<RectTransform>().sizeDelta = new Vector2(60f, 60f);
			GameObject val3 = new GameObject("Image");
			val3.transform.SetParent(val.transform, false);
			Image val4 = val3.AddComponent<Image>();
			val4.sprite = CreateSprite(Path.Combine(ModPaths.dependencies, "ytbIcon.png"));
			((Graphic)val4).color = new Color(0.1451f, 0.1137f, 0.1529f, 1f);
			val3.GetComponent<RectTransform>().sizeDelta = new Vector2(40f, 28f);
			((Transform)val3.GetComponent<RectTransform>()).localPosition = Vector3.zero;
			Button val5 = val.AddComponent<Button>();
			ButtonClickedEvent onClick = val5.onClick;
			object obj = <>c.<>9__9_1;
			if (obj == null)
			{
				UnityAction val6 = delegate
				{
					Jukebox.SetActive(false);
					Youtube.SetActive(true);
					((Behaviour)gameMenu).enabled = false;
				};
				<>c.<>9__9_1 = val6;
				obj = (object)val6;
			}
			((UnityEvent)onClick).AddListener((UnityAction)obj);
		}

		private static void CreateYTUI()
		{
			//IL_007f: Unknown result type (might be due to invalid IL or missing references)
			//IL_008f: Unknown result type (might be due to invalid IL or missing references)
			//IL_0095: Expected O, but got Unknown
			//IL_00fb: Unknown result type (might be due to invalid IL or missing references)
			//IL_010b: Unknown result type (might be due to invalid IL or missing references)
			//IL_0111: Expected O, but got Unknown
			Youtube.transform.SetParent(GameCanvas.transform, false);
			Youtube.SetActive(false);
			Image val = Youtube.AddComponent<Image>();
			val.sprite = ((IEnumerable<Sprite>)Resources.FindObjectsOfTypeAll<Sprite>()).FirstOrDefault((Func<Sprite, bool>)((Sprite s) => ((Object)s).name == "frame_stageframe_02_d"));
			val.type = (Type)1;
			Youtube.GetComponent<RectTransform>().sizeDelta = new Vector2(800f, 300f);
			GameObject val2 = new GameObject("Frame");
			val2.transform.SetParent(Youtube.transform, false);
			Image val3 = val2.AddComponent<Image>();
			val3.sprite = ((IEnumerable<Sprite>)Resources.FindObjectsOfTypeAll<Sprite>()).FirstOrDefault((Func<Sprite, bool>)((Sprite s) => ((Object)s).name == "frame_listframe_01_n"));
			val3.type = (Type)1;
			val2.GetComponent<RectTransform>().sizeDelta = new Vector2(760f, 260f);
			GameObject val4 = new GameObject("MainContainer");
			val4.transform.SetParent(val2.transform, false);
			CreateInputField(val4);
			CreatePlayButton(val4);
		}

		private static void CreateInputField(GameObject parent)
		{
			//IL_0006: Unknown result type (might be due to invalid IL or missing references)
			//IL_000c: Expected O, but got Unknown
			//IL_0034: Unknown result type (might be due to invalid IL or missing references)
			//IL_0090: Unknown result type (might be due to invalid IL or missing references)
			//IL_00a0: Unknown result type (might be due to invalid IL or missing references)
			//IL_00a6: Expected O, but got Unknown
			//IL_0101: Unknown result type (might be due to invalid IL or missing references)
			//IL_012d: Unknown result type (might be due to invalid IL or missing references)
			//IL_013a: Unknown result type (might be due to invalid IL or missing references)
			//IL_016e: Unknown result type (might be due to invalid IL or missing references)
			//IL_0175: Expected O, but got Unknown
			//IL_01d2: Unknown result type (might be due to invalid IL or missing references)
			//IL_0208: Unknown result type (might be due to invalid IL or missing references)
			//IL_021a: Unknown result type (might be due to invalid IL or missing references)
			GameObject val = new GameObject("URLInputField");
			val.transform.SetParent(parent.transform, false);
			val.transform.localPosition = new Vector3(0f, 50f, 0f);
			Image val2 = val.AddComponent<Image>();
			val2.sprite = ((IEnumerable<Sprite>)Resources.FindObjectsOfTypeAll<Sprite>()).FirstOrDefault((Func<Sprite, bool>)((Sprite s) => ((Object)s).name == "textfield_activity_0"));
			val2.type = (Type)1;
			RectTransform component = val.GetComponent<RectTransform>();
			component.sizeDelta = new Vector2(700f, 40f);
			GameObject val3 = new GameObject("InputText");
			val3.transform.SetParent(val.transform, false);
			TextMeshProUGUI val4 = val3.AddComponent<TextMeshProUGUI>();
			((TMP_Text)val4).font = ((IEnumerable<TMP_FontAsset>)Resources.FindObjectsOfTypeAll<TMP_FontAsset>()).FirstOrDefault((Func<TMP_FontAsset, bool>)((TMP_FontAsset f) => ((Object)f).name == "Lato-Regular SDF"));
			((TMP_Text)val4).fontSize = 24f;
			((Graphic)val4).color = Color.white;
			((TMP_Text)val4).alignment = (TextAlignmentOptions)514;
			RectTransform component2 = val3.GetComponent<RectTransform>();
			component2.sizeDelta = new Vector2(680f, 30f);
			((Transform)component2).localPosition = Vector3.zero;
			inputField = val.AddComponent<TMP_InputField>();
			inputField.textViewport = component;
			inputField.textComponent = (TMP_Text)(object)val4;
			GameObject val5 = new GameObject("PlaceholderText");
			val5.transform.SetParent(val.transform, false);
			TextMeshProUGUI val6 = val5.AddComponent<TextMeshProUGUI>();
			((TMP_Text)val6).font = ((IEnumerable<TMP_FontAsset>)Resources.FindObjectsOfTypeAll<TMP_FontAsset>()).FirstOrDefault((Func<TMP_FontAsset, bool>)((TMP_FontAsset f) => ((Object)f).name == "Lato-Regular SDF"));
			((TMP_Text)val6).fontSize = 24f;
			((Graphic)val6).color = Color.gray;
			((TMP_Text)val6).alignment = (TextAlignmentOptions)514;
			((TMP_Text)val6).text = "Enter URL here...";
			val5.GetComponent<RectTransform>().sizeDelta = new Vector2(680f, 30f);
			((Transform)val5.GetComponent<RectTransform>()).localPosition = Vector3.zero;
			inputField.placeholder = (Graphic)(object)val6;
		}

		private static void CreatePlayButton(GameObject parent)
		{
			//IL_0006: Unknown result type (might be due to invalid IL or missing references)
			//IL_000c: Expected O, but got Unknown
			//IL_0034: Unknown result type (might be due to invalid IL or missing references)
			//IL_008e: Unknown result type (might be due to invalid IL or missing references)
			//IL_009e: Unknown result type (might be due to invalid IL or missing references)
			//IL_00a4: Expected O, but got Unknown
			//IL_00fb: Unknown result type (might be due to invalid IL or missing references)
			//IL_0132: Unknown result type (might be due to invalid IL or missing references)
			//IL_013f: Unknown result type (might be due to invalid IL or missing references)
			//IL_0156: Unknown result type (might be due to invalid IL or missing references)
			//IL_0184: Unknown result type (might be due to invalid IL or missing references)
			//IL_0189: Unknown result type (might be due to invalid IL or missing references)
			//IL_018f: Expected O, but got Unknown
			GameObject val = new GameObject("PlayButton");
			val.transform.SetParent(parent.transform, false);
			val.transform.localPosition = new Vector3(0f, -45f, 0f);
			Image val2 = val.AddComponent<Image>();
			val2.sprite = ((IEnumerable<Sprite>)Resources.FindObjectsOfTypeAll<Sprite>()).FirstOrDefault((Func<Sprite, bool>)((Sprite s) => ((Object)s).name == "btn_rectangle_01_n_bluegray"));
			val2.type = (Type)1;
			val.GetComponent<RectTransform>().sizeDelta = new Vector2(120f, 60f);
			GameObject val3 = new GameObject("PlayText");
			val3.transform.SetParent(val.transform, false);
			TextMeshProUGUI val4 = val3.AddComponent<TextMeshProUGUI>();
			((TMP_Text)val4).font = ((IEnumerable<TMP_FontAsset>)Resources.FindObjectsOfTypeAll<TMP_FontAsset>()).FirstOrDefault((Func<TMP_FontAsset, bool>)((TMP_FontAsset f) => ((Object)f).name == "Lato-Regular SDF"));
			((TMP_Text)val4).fontSize = 30f;
			((Graphic)val4).color = Color.white;
			((TMP_Text)val4).alignment = (TextAlignmentOptions)514;
			((TMP_Text)val4).text = "Play";
			RectTransform component = val3.GetComponent<RectTransform>();
			component.sizeDelta = new Vector2(120f, 60f);
			((Transform)component).localPosition = Vector3.zero;
			component.anchorMax = new Vector2(0.5f, 0.6f);
			Button val5 = val.AddComponent<Button>();
			ButtonClickedEvent onClick = val5.onClick;
			object obj = <>c.<>9__12_2;
			if (obj == null)
			{
				UnityAction val6 = delegate
				{
					if ((Object)(object)Audio.activeJukebox != (Object)null)
					{
						ulong networkObjectId = Audio.activeJukebox.GetComponent<NetworkObject>().NetworkObjectId;
						YTNetworkManager.instance.TriggerDownloadServerRpc(inputField.text, networkObjectId);
					}
					else
					{
						Log.Error("No active jukebox found when attempting to trigger download.");
					}
				};
				<>c.<>9__12_2 = val6;
				obj = (object)val6;
			}
			((UnityEvent)onClick).AddListener((UnityAction)obj);
		}
	}
}
namespace __GEN
{
	internal class NetworkVariableSerializationHelper
	{
		[RuntimeInitializeOnLoadMethod]
		internal static void InitializeSerialization()
		{
		}
	}
}
namespace YTJukebox.NetcodePatcher
{
	[AttributeUsage(AttributeTargets.Module)]
	internal class NetcodePatchedAssemblyAttribute : Attribute
	{
	}
}

Dependencies/NAudio.Core.dll

Decompiled a day ago
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Runtime.Versioning;
using System.Security;
using System.Security.Permissions;
using System.Text;
using System.Threading;
using NAudio.Dmo;
using NAudio.Dsp;
using NAudio.FileFormats.Wav;
using NAudio.Utils;
using NAudio.Wave;
using NAudio.Wave.SampleProviders;

[assembly: CompilationRelaxations(8)]
[assembly: RuntimeCompatibility(WrapNonExceptionThrows = true)]
[assembly: Debuggable(DebuggableAttribute.DebuggingModes.IgnoreSymbolStoreSequencePoints)]
[assembly: TargetFramework(".NETStandard,Version=v2.0", FrameworkDisplayName = ".NET Standard 2.0")]
[assembly: AssemblyCompany("Mark Heath")]
[assembly: AssemblyConfiguration("Release")]
[assembly: AssemblyCopyright("© Mark Heath 2023")]
[assembly: AssemblyFileVersion("2.2.1.0")]
[assembly: AssemblyInformationalVersion("2.2.1")]
[assembly: AssemblyProduct("NAudio.Core")]
[assembly: AssemblyTitle("NAudio.Core")]
[assembly: AssemblyMetadata("RepositoryUrl", "https://github.com/naudio/NAudio")]
[assembly: SecurityPermission(SecurityAction.RequestMinimum, SkipVerification = true)]
[assembly: AssemblyVersion("2.2.1.0")]
[module: UnverifiableCode]
namespace NAudio
{
	public enum Manufacturers
	{
		Microsoft = 1,
		Creative = 2,
		Mediavision = 3,
		Fujitsu = 4,
		Artisoft = 20,
		TurtleBeach = 21,
		Ibm = 22,
		Vocaltec = 23,
		Roland = 24,
		DspSolutions = 25,
		Nec = 26,
		Ati = 27,
		Wanglabs = 28,
		Tandy = 29,
		Voyetra = 30,
		Antex = 31,
		IclPS = 32,
		Intel = 33,
		Gravis = 34,
		Val = 35,
		Interactive = 36,
		Yamaha = 37,
		Everex = 38,
		Echo = 39,
		Sierra = 40,
		Cat = 41,
		Apps = 42,
		DspGroup = 43,
		Melabs = 44,
		ComputerFriends = 45,
		Ess = 46,
		Audiofile = 47,
		Motorola = 48,
		Canopus = 49,
		Epson = 50,
		Truevision = 51,
		Aztech = 52,
		Videologic = 53,
		Scalacs = 54,
		Korg = 55,
		Apt = 56,
		Ics = 57,
		Iteratedsys = 58,
		Metheus = 59,
		Logitech = 60,
		Winnov = 61,
		Ncr = 62,
		Exan = 63,
		Ast = 64,
		Willowpond = 65,
		Sonicfoundry = 66,
		Vitec = 67,
		Moscom = 68,
		Siliconsoft = 69,
		Supermac = 73,
		Audiopt = 74,
		Speechcomp = 76,
		Ahead = 77,
		Dolby = 78,
		Oki = 79,
		Auravision = 80,
		Olivetti = 81,
		Iomagic = 82,
		Matsushita = 83,
		Controlres = 84,
		Xebec = 85,
		Newmedia = 86,
		Nms = 87,
		Lyrrus = 88,
		Compusic = 89,
		Opti = 90,
		Adlacc = 91,
		Compaq = 92,
		Dialogic = 93,
		Insoft = 94,
		Mptus = 95,
		Weitek = 96,
		LernoutAndHauspie = 97,
		Qciar = 98,
		Apple = 99,
		Digital = 100,
		Motu = 101,
		Workbit = 102,
		Ositech = 103,
		Miro = 104,
		Cirruslogic = 105,
		Isolution = 106,
		Horizons = 107,
		Concepts = 108,
		Vtg = 109,
		Radius = 110,
		Rockwell = 111,
		Xyz = 112,
		Opcode = 113,
		Voxware = 114,
		NorthernTelecom = 115,
		Apicom = 116,
		Grande = 117,
		Addx = 118,
		Wildcat = 119,
		Rhetorex = 120,
		Brooktree = 121,
		Ensoniq = 125,
		Fast = 126,
		Nvidia = 127,
		Oksori = 128,
		Diacoustics = 129,
		Gulbransen = 130,
		KayElemetrics = 131,
		Crystal = 132,
		SplashStudios = 133,
		Quarterdeck = 134,
		Tdk = 135,
		DigitalAudioLabs = 136,
		Seersys = 137,
		Picturetel = 138,
		AttMicroelectronics = 139,
		Osprey = 140,
		Mediatrix = 141,
		Soundesigns = 142,
		Aldigital = 143,
		SpectrumSignalProcessing = 144,
		Ecs = 145,
		Amd = 146,
		Coredynamics = 147,
		Canam = 148,
		Softsound = 149,
		Norris = 150,
		Ddd = 151,
		Euphonics = 152,
		Precept = 153,
		CrystalNet = 154,
		Chromatic = 155,
		Voiceinfo = 156,
		Viennasys = 157,
		Connectix = 158,
		Gadgetlabs = 159,
		Frontier = 160,
		Viona = 161,
		Casio = 162,
		Diamondmm = 163,
		S3 = 164,
		FraunhoferIis = 172
	}
	public class MmException : Exception
	{
		public MmResult Result { get; }

		public string Function { get; }

		public MmException(MmResult result, string function)
			: base(ErrorMessage(result, function))
		{
			Result = result;
			Function = function;
		}

		private static string ErrorMessage(MmResult result, string function)
		{
			return $"{result} calling {function}";
		}

		public static void Try(MmResult result, string function)
		{
			if (result != 0)
			{
				throw new MmException(result, function);
			}
		}
	}
	public enum MmResult
	{
		NoError = 0,
		UnspecifiedError = 1,
		BadDeviceId = 2,
		NotEnabled = 3,
		AlreadyAllocated = 4,
		InvalidHandle = 5,
		NoDriver = 6,
		MemoryAllocationError = 7,
		NotSupported = 8,
		BadErrorNumber = 9,
		InvalidFlag = 10,
		InvalidParameter = 11,
		HandleBusy = 12,
		InvalidAlias = 13,
		BadRegistryDatabase = 14,
		RegistryKeyNotFound = 15,
		RegistryReadError = 16,
		RegistryWriteError = 17,
		RegistryDeleteError = 18,
		RegistryValueNotFound = 19,
		NoDriverCallback = 20,
		MoreData = 21,
		WaveBadFormat = 32,
		WaveStillPlaying = 33,
		WaveHeaderUnprepared = 34,
		WaveSync = 35,
		AcmNotPossible = 512,
		AcmBusy = 513,
		AcmHeaderUnprepared = 514,
		AcmCancelled = 515,
		MixerInvalidLine = 1024,
		MixerInvalidControl = 1025,
		MixerInvalidValue = 1026
	}
}
namespace NAudio.CoreAudioApi
{
	public enum CaptureState
	{
		Stopped,
		Starting,
		Capturing,
		Stopping
	}
}
namespace NAudio.Dmo
{
	public class AudioMediaSubtypes
	{
		public static readonly Guid MEDIASUBTYPE_PCM = new Guid("00000001-0000-0010-8000-00AA00389B71");

		public static readonly Guid MEDIASUBTYPE_PCMAudioObsolete = new Guid("e436eb8a-524f-11ce-9f53-0020af0ba770");

		public static readonly Guid MEDIASUBTYPE_MPEG1Packet = new Guid("e436eb80-524f-11ce-9f53-0020af0ba770");

		public static readonly Guid MEDIASUBTYPE_MPEG1Payload = new Guid("e436eb81-524f-11ce-9f53-0020af0ba770");

		public static readonly Guid MEDIASUBTYPE_MPEG2_AUDIO = new Guid("e06d802b-db46-11cf-b4d1-00805f6cbbea");

		public static readonly Guid MEDIASUBTYPE_DVD_LPCM_AUDIO = new Guid("e06d8032-db46-11cf-b4d1-00805f6cbbea");

		public static readonly Guid MEDIASUBTYPE_DRM_Audio = new Guid("00000009-0000-0010-8000-00aa00389b71");

		public static readonly Guid MEDIASUBTYPE_IEEE_FLOAT = new Guid("00000003-0000-0010-8000-00aa00389b71");

		public static readonly Guid MEDIASUBTYPE_DOLBY_AC3 = new Guid("e06d802c-db46-11cf-b4d1-00805f6cbbea");

		public static readonly Guid MEDIASUBTYPE_DOLBY_AC3_SPDIF = new Guid("00000092-0000-0010-8000-00aa00389b71");

		public static readonly Guid MEDIASUBTYPE_RAW_SPORT = new Guid("00000240-0000-0010-8000-00aa00389b71");

		public static readonly Guid MEDIASUBTYPE_SPDIF_TAG_241h = new Guid("00000241-0000-0010-8000-00aa00389b71");

		public static readonly Guid MEDIASUBTYPE_I420 = new Guid("30323449-0000-0010-8000-00AA00389B71");

		public static readonly Guid MEDIASUBTYPE_IYUV = new Guid("56555949-0000-0010-8000-00AA00389B71");

		public static readonly Guid MEDIASUBTYPE_RGB1 = new Guid("e436eb78-524f-11ce-9f53-0020af0ba770");

		public static readonly Guid MEDIASUBTYPE_RGB24 = new Guid("e436eb7d-524f-11ce-9f53-0020af0ba770");

		public static readonly Guid MEDIASUBTYPE_RGB32 = new Guid("e436eb7e-524f-11ce-9f53-0020af0ba770");

		public static readonly Guid MEDIASUBTYPE_RGB4 = new Guid("e436eb79-524f-11ce-9f53-0020af0ba770");

		public static readonly Guid MEDIASUBTYPE_RGB555 = new Guid("e436eb7c-524f-11ce-9f53-0020af0ba770");

		public static readonly Guid MEDIASUBTYPE_RGB565 = new Guid("e436eb7b-524f-11ce-9f53-0020af0ba770");

		public static readonly Guid MEDIASUBTYPE_RGB8 = new Guid("e436eb7a-524f-11ce-9f53-0020af0ba770");

		public static readonly Guid MEDIASUBTYPE_UYVY = new Guid("59565955-0000-0010-8000-00AA00389B71");

		public static readonly Guid MEDIASUBTYPE_VIDEOIMAGE = new Guid("1d4a45f2-e5f6-4b44-8388-f0ae5c0e0c37");

		public static readonly Guid MEDIASUBTYPE_YUY2 = new Guid("32595559-0000-0010-8000-00AA00389B71");

		public static readonly Guid MEDIASUBTYPE_YV12 = new Guid("31313259-0000-0010-8000-00AA00389B71");

		public static readonly Guid MEDIASUBTYPE_YVU9 = new Guid("39555659-0000-0010-8000-00AA00389B71");

		public static readonly Guid MEDIASUBTYPE_YVYU = new Guid("55595659-0000-0010-8000-00AA00389B71");

		public static readonly Guid WMFORMAT_MPEG2Video = new Guid("e06d80e3-db46-11cf-b4d1-00805f6cbbea");

		public static readonly Guid WMFORMAT_Script = new Guid("5C8510F2-DEBE-4ca7-BBA5-F07A104F8DFF");

		public static readonly Guid WMFORMAT_VideoInfo = new Guid("05589f80-c356-11ce-bf01-00aa0055595a");

		public static readonly Guid WMFORMAT_WaveFormatEx = new Guid("05589f81-c356-11ce-bf01-00aa0055595a");

		public static readonly Guid WMFORMAT_WebStream = new Guid("da1e6b13-8359-4050-b398-388e965bf00c");

		public static readonly Guid WMMEDIASUBTYPE_ACELPnet = new Guid("00000130-0000-0010-8000-00AA00389B71");

		public static readonly Guid WMMEDIASUBTYPE_Base = new Guid("00000000-0000-0010-8000-00AA00389B71");

		public static readonly Guid WMMEDIASUBTYPE_DRM = new Guid("00000009-0000-0010-8000-00AA00389B71");

		public static readonly Guid WMMEDIASUBTYPE_MP3 = new Guid("00000055-0000-0010-8000-00AA00389B71");

		public static readonly Guid WMMEDIASUBTYPE_MP43 = new Guid("3334504D-0000-0010-8000-00AA00389B71");

		public static readonly Guid WMMEDIASUBTYPE_MP4S = new Guid("5334504D-0000-0010-8000-00AA00389B71");

		public static readonly Guid WMMEDIASUBTYPE_M4S2 = new Guid("3253344D-0000-0010-8000-00AA00389B71");

		public static readonly Guid WMMEDIASUBTYPE_P422 = new Guid("32323450-0000-0010-8000-00AA00389B71");

		public static readonly Guid WMMEDIASUBTYPE_MPEG2_VIDEO = new Guid("e06d8026-db46-11cf-b4d1-00805f6cbbea");

		public static readonly Guid WMMEDIASUBTYPE_MSS1 = new Guid("3153534D-0000-0010-8000-00AA00389B71");

		public static readonly Guid WMMEDIASUBTYPE_MSS2 = new Guid("3253534D-0000-0010-8000-00AA00389B71");

		public static readonly Guid WMMEDIASUBTYPE_PCM = new Guid("00000001-0000-0010-8000-00AA00389B71");

		public static readonly Guid WMMEDIASUBTYPE_WebStream = new Guid("776257d4-c627-41cb-8f81-7ac7ff1c40cc");

		public static readonly Guid WMMEDIASUBTYPE_WMAudio_Lossless = new Guid("00000163-0000-0010-8000-00AA00389B71");

		public static readonly Guid WMMEDIASUBTYPE_WMAudioV2 = new Guid("00000161-0000-0010-8000-00AA00389B71");

		public static readonly Guid WMMEDIASUBTYPE_WMAudioV7 = new Guid("00000161-0000-0010-8000-00AA00389B71");

		public static readonly Guid WMMEDIASUBTYPE_WMAudioV8 = new Guid("00000161-0000-0010-8000-00AA00389B71");

		public static readonly Guid WMMEDIASUBTYPE_WMAudioV9 = new Guid("00000162-0000-0010-8000-00AA00389B71");

		public static readonly Guid WMMEDIASUBTYPE_WMSP1 = new Guid("0000000A-0000-0010-8000-00AA00389B71");

		public static readonly Guid WMMEDIASUBTYPE_WMV1 = new Guid("31564D57-0000-0010-8000-00AA00389B71");

		public static readonly Guid WMMEDIASUBTYPE_WMV2 = new Guid("32564D57-0000-0010-8000-00AA00389B71");

		public static readonly Guid WMMEDIASUBTYPE_WMV3 = new Guid("33564D57-0000-0010-8000-00AA00389B71");

		public static readonly Guid WMMEDIASUBTYPE_WMVA = new Guid("41564D57-0000-0010-8000-00AA00389B71");

		public static readonly Guid WMMEDIASUBTYPE_WMVP = new Guid("50564D57-0000-0010-8000-00AA00389B71");

		public static readonly Guid WMMEDIASUBTYPE_WVP2 = new Guid("32505657-0000-0010-8000-00AA00389B71");

		public static readonly Guid WMMEDIATYPE_Audio = new Guid("73647561-0000-0010-8000-00AA00389B71");

		public static readonly Guid WMMEDIATYPE_FileTransfer = new Guid("D9E47579-930E-4427-ADFC-AD80F290E470");

		public static readonly Guid WMMEDIATYPE_Image = new Guid("34A50FD8-8AA5-4386-81FE-A0EFE0488E31");

		public static readonly Guid WMMEDIATYPE_Script = new Guid("73636d64-0000-0010-8000-00AA00389B71");

		public static readonly Guid WMMEDIATYPE_Text = new Guid("9BBA1EA7-5AB2-4829-BA57-0940209BCF3E");

		public static readonly Guid WMMEDIATYPE_Video = new Guid("73646976-0000-0010-8000-00AA00389B71");

		public static readonly Guid WMSCRIPTTYPE_TwoStrings = new Guid("82f38a70-c29f-11d1-97ad-00a0c95ea850");

		public static readonly Guid MEDIASUBTYPE_WAVE = new Guid("e436eb8b-524f-11ce-9f53-0020af0ba770");

		public static readonly Guid MEDIASUBTYPE_AU = new Guid("e436eb8c-524f-11ce-9f53-0020af0ba770");

		public static readonly Guid MEDIASUBTYPE_AIFF = new Guid("e436eb8d-524f-11ce-9f53-0020af0ba770");

		public static readonly Guid[] AudioSubTypes = new Guid[13]
		{
			MEDIASUBTYPE_PCM, MEDIASUBTYPE_PCMAudioObsolete, MEDIASUBTYPE_MPEG1Packet, MEDIASUBTYPE_MPEG1Payload, MEDIASUBTYPE_MPEG2_AUDIO, MEDIASUBTYPE_DVD_LPCM_AUDIO, MEDIASUBTYPE_DRM_Audio, MEDIASUBTYPE_IEEE_FLOAT, MEDIASUBTYPE_DOLBY_AC3, MEDIASUBTYPE_DOLBY_AC3_SPDIF,
			MEDIASUBTYPE_RAW_SPORT, MEDIASUBTYPE_SPDIF_TAG_241h, WMMEDIASUBTYPE_MP3
		};

		public static readonly string[] AudioSubTypeNames = new string[13]
		{
			"PCM", "PCM Obsolete", "MPEG1Packet", "MPEG1Payload", "MPEG2_AUDIO", "DVD_LPCM_AUDIO", "DRM_Audio", "IEEE_FLOAT", "DOLBY_AC3", "DOLBY_AC3_SPDIF",
			"RAW_SPORT", "SPDIF_TAG_241h", "MP3"
		};

		public static string GetAudioSubtypeName(Guid subType)
		{
			for (int i = 0; i < AudioSubTypes.Length; i++)
			{
				if (subType == AudioSubTypes[i])
				{
					return AudioSubTypeNames[i];
				}
			}
			return subType.ToString();
		}
	}
}
namespace NAudio.Utils
{
	public static class BufferHelpers
	{
		public static byte[] Ensure(byte[] buffer, int bytesRequired)
		{
			if (buffer == null || buffer.Length < bytesRequired)
			{
				buffer = new byte[bytesRequired];
			}
			return buffer;
		}

		public static float[] Ensure(float[] buffer, int samplesRequired)
		{
			if (buffer == null || buffer.Length < samplesRequired)
			{
				buffer = new float[samplesRequired];
			}
			return buffer;
		}
	}
	public static class ByteArrayExtensions
	{
		public static bool IsEntirelyNull(byte[] buffer)
		{
			for (int i = 0; i < buffer.Length; i++)
			{
				if (buffer[i] != 0)
				{
					return false;
				}
			}
			return true;
		}

		public static string DescribeAsHex(byte[] buffer, string separator, int bytesPerLine)
		{
			StringBuilder stringBuilder = new StringBuilder();
			int num = 0;
			foreach (byte b in buffer)
			{
				stringBuilder.AppendFormat("{0:X2}{1}", b, separator);
				if (++num % bytesPerLine == 0)
				{
					stringBuilder.Append("\r\n");
				}
			}
			stringBuilder.Append("\r\n");
			return stringBuilder.ToString();
		}

		public static string DecodeAsString(byte[] buffer, int offset, int length, Encoding encoding)
		{
			for (int i = 0; i < length; i++)
			{
				if (buffer[offset + i] == 0)
				{
					length = i;
				}
			}
			return encoding.GetString(buffer, offset, length);
		}

		public static byte[] Concat(params byte[][] byteArrays)
		{
			int num = 0;
			byte[][] array = byteArrays;
			foreach (byte[] array2 in array)
			{
				num += array2.Length;
			}
			if (num <= 0)
			{
				return new byte[0];
			}
			byte[] array3 = new byte[num];
			int num2 = 0;
			array = byteArrays;
			foreach (byte[] array4 in array)
			{
				Array.Copy(array4, 0, array3, num2, array4.Length);
				num2 += array4.Length;
			}
			return array3;
		}
	}
	public class ByteEncoding : Encoding
	{
		public static readonly ByteEncoding Instance = new ByteEncoding();

		private ByteEncoding()
		{
		}

		public override int GetByteCount(char[] chars, int index, int count)
		{
			return count;
		}

		public override int GetBytes(char[] chars, int charIndex, int charCount, byte[] bytes, int byteIndex)
		{
			for (int i = 0; i < charCount; i++)
			{
				bytes[byteIndex + i] = (byte)chars[charIndex + i];
			}
			return charCount;
		}

		public override int GetCharCount(byte[] bytes, int index, int count)
		{
			for (int i = 0; i < count; i++)
			{
				if (bytes[index + i] == 0)
				{
					return i;
				}
			}
			return count;
		}

		public override int GetChars(byte[] bytes, int byteIndex, int byteCount, char[] chars, int charIndex)
		{
			for (int i = 0; i < byteCount; i++)
			{
				byte b = bytes[byteIndex + i];
				if (b == 0)
				{
					return i;
				}
				chars[charIndex + i] = (char)b;
			}
			return byteCount;
		}

		public override int GetMaxCharCount(int byteCount)
		{
			return byteCount;
		}

		public override int GetMaxByteCount(int charCount)
		{
			return charCount;
		}
	}
	public class ChunkIdentifier
	{
		public static int ChunkIdentifierToInt32(string s)
		{
			if (s.Length != 4)
			{
				throw new ArgumentException("Must be a four character string");
			}
			byte[] bytes = Encoding.UTF8.GetBytes(s);
			if (bytes.Length != 4)
			{
				throw new ArgumentException("Must encode to exactly four bytes");
			}
			return BitConverter.ToInt32(bytes, 0);
		}
	}
	public class CircularBuffer
	{
		private readonly byte[] buffer;

		private readonly object lockObject;

		private int writePosition;

		private int readPosition;

		private int byteCount;

		public int MaxLength => buffer.Length;

		public int Count
		{
			get
			{
				lock (lockObject)
				{
					return byteCount;
				}
			}
		}

		public CircularBuffer(int size)
		{
			buffer = new byte[size];
			lockObject = new object();
		}

		public int Write(byte[] data, int offset, int count)
		{
			lock (lockObject)
			{
				int num = 0;
				if (count > buffer.Length - byteCount)
				{
					count = buffer.Length - byteCount;
				}
				int num2 = Math.Min(buffer.Length - writePosition, count);
				Array.Copy(data, offset, buffer, writePosition, num2);
				writePosition += num2;
				writePosition %= buffer.Length;
				num += num2;
				if (num < count)
				{
					Array.Copy(data, offset + num, buffer, writePosition, count - num);
					writePosition += count - num;
					num = count;
				}
				byteCount += num;
				return num;
			}
		}

		public int Read(byte[] data, int offset, int count)
		{
			lock (lockObject)
			{
				if (count > byteCount)
				{
					count = byteCount;
				}
				int num = 0;
				int num2 = Math.Min(buffer.Length - readPosition, count);
				Array.Copy(buffer, readPosition, data, offset, num2);
				num += num2;
				readPosition += num2;
				readPosition %= buffer.Length;
				if (num < count)
				{
					Array.Copy(buffer, readPosition, data, offset + num, count - num);
					readPosition += count - num;
					num = count;
				}
				byteCount -= num;
				return num;
			}
		}

		public void Reset()
		{
			lock (lockObject)
			{
				ResetInner();
			}
		}

		private void ResetInner()
		{
			byteCount = 0;
			readPosition = 0;
			writePosition = 0;
		}

		public void Advance(int count)
		{
			lock (lockObject)
			{
				if (count >= byteCount)
				{
					ResetInner();
					return;
				}
				byteCount -= count;
				readPosition += count;
				readPosition %= MaxLength;
			}
		}
	}
	public class Decibels
	{
		private const double LOG_2_DB = 8.685889638065037;

		private const double DB_2_LOG = 0.11512925464970228;

		public static double LinearToDecibels(double lin)
		{
			return Math.Log(lin) * 8.685889638065037;
		}

		public static double DecibelsToLinear(double dB)
		{
			return Math.Exp(dB * 0.11512925464970228);
		}
	}
	[AttributeUsage(AttributeTargets.Field)]
	public class FieldDescriptionAttribute : Attribute
	{
		public string Description { get; }

		public FieldDescriptionAttribute(string description)
		{
			Description = description;
		}

		public override string ToString()
		{
			return Description;
		}
	}
	public static class FieldDescriptionHelper
	{
		public static string Describe(Type t, Guid guid)
		{
			FieldInfo[] fields = t.GetFields(BindingFlags.Static | BindingFlags.Public);
			foreach (FieldInfo fieldInfo in fields)
			{
				if (!fieldInfo.IsPublic || !fieldInfo.IsStatic || !(fieldInfo.FieldType == typeof(Guid)) || !((Guid)fieldInfo.GetValue(null) == guid))
				{
					continue;
				}
				object[] customAttributes = fieldInfo.GetCustomAttributes(inherit: false);
				for (int j = 0; j < customAttributes.Length; j++)
				{
					if (customAttributes[j] is FieldDescriptionAttribute fieldDescriptionAttribute)
					{
						return fieldDescriptionAttribute.Description;
					}
				}
				return fieldInfo.Name;
			}
			return guid.ToString();
		}
	}
	public static class HResult
	{
		public const int S_OK = 0;

		public const int S_FALSE = 1;

		public const int E_INVALIDARG = -2147483645;

		private const int FACILITY_AAF = 18;

		private const int FACILITY_ACS = 20;

		private const int FACILITY_BACKGROUNDCOPY = 32;

		private const int FACILITY_CERT = 11;

		private const int FACILITY_COMPLUS = 17;

		private const int FACILITY_CONFIGURATION = 33;

		private const int FACILITY_CONTROL = 10;

		private const int FACILITY_DISPATCH = 2;

		private const int FACILITY_DPLAY = 21;

		private const int FACILITY_HTTP = 25;

		private const int FACILITY_INTERNET = 12;

		private const int FACILITY_ITF = 4;

		private const int FACILITY_MEDIASERVER = 13;

		private const int FACILITY_MSMQ = 14;

		private const int FACILITY_NULL = 0;

		private const int FACILITY_RPC = 1;

		private const int FACILITY_SCARD = 16;

		private const int FACILITY_SECURITY = 9;

		private const int FACILITY_SETUPAPI = 15;

		private const int FACILITY_SSPI = 9;

		private const int FACILITY_STORAGE = 3;

		private const int FACILITY_SXS = 23;

		private const int FACILITY_UMI = 22;

		private const int FACILITY_URT = 19;

		private const int FACILITY_WIN32 = 7;

		private const int FACILITY_WINDOWS = 8;

		private const int FACILITY_WINDOWS_CE = 24;

		public static int MAKE_HRESULT(int sev, int fac, int code)
		{
			return (sev << 31) | (fac << 16) | code;
		}

		public static int GetHResult(this COMException exception)
		{
			return exception.ErrorCode;
		}
	}
	public static class IEEE
	{
		private static double UnsignedToFloat(ulong u)
		{
			return (double)(long)(u - int.MaxValue - 1) + 2147483648.0;
		}

		private static double ldexp(double x, int exp)
		{
			return x * Math.Pow(2.0, exp);
		}

		private static double frexp(double x, out int exp)
		{
			exp = (int)Math.Floor(Math.Log(x) / Math.Log(2.0)) + 1;
			return 1.0 - (Math.Pow(2.0, exp) - x) / Math.Pow(2.0, exp);
		}

		private static ulong FloatToUnsigned(double f)
		{
			return (ulong)((long)(f - 2147483648.0) + int.MaxValue + 1);
		}

		public static byte[] ConvertToIeeeExtended(double num)
		{
			int num2;
			if (num < 0.0)
			{
				num2 = 32768;
				num *= -1.0;
			}
			else
			{
				num2 = 0;
			}
			ulong num4;
			ulong num5;
			int num3;
			if (num == 0.0)
			{
				num3 = 0;
				num4 = 0uL;
				num5 = 0uL;
			}
			else
			{
				double num6 = frexp(num, out num3);
				if (num3 > 16384 || !(num6 < 1.0))
				{
					num3 = num2 | 0x7FFF;
					num4 = 0uL;
					num5 = 0uL;
				}
				else
				{
					num3 += 16382;
					if (num3 < 0)
					{
						num6 = ldexp(num6, num3);
						num3 = 0;
					}
					num3 |= num2;
					num6 = ldexp(num6, 32);
					double num7 = Math.Floor(num6);
					num4 = FloatToUnsigned(num7);
					num6 = ldexp(num6 - num7, 32);
					num7 = Math.Floor(num6);
					num5 = FloatToUnsigned(num7);
				}
			}
			return new byte[10]
			{
				(byte)(num3 >> 8),
				(byte)num3,
				(byte)(num4 >> 24),
				(byte)(num4 >> 16),
				(byte)(num4 >> 8),
				(byte)num4,
				(byte)(num5 >> 24),
				(byte)(num5 >> 16),
				(byte)(num5 >> 8),
				(byte)num5
			};
		}

		public static double ConvertFromIeeeExtended(byte[] bytes)
		{
			if (bytes.Length != 10)
			{
				throw new Exception("Incorrect length for IEEE extended.");
			}
			int num = ((bytes[0] & 0x7F) << 8) | bytes[1];
			uint num2 = (uint)((bytes[2] << 24) | (bytes[3] << 16) | (bytes[4] << 8) | bytes[5]);
			uint num3 = (uint)((bytes[6] << 24) | (bytes[7] << 16) | (bytes[8] << 8) | bytes[9]);
			double num4;
			if (num == 0 && num2 == 0 && num3 == 0)
			{
				num4 = 0.0;
			}
			else if (num == 32767)
			{
				num4 = double.NaN;
			}
			else
			{
				num -= 16383;
				num4 = ldexp(UnsignedToFloat(num2), num -= 31);
				num4 += ldexp(UnsignedToFloat(num3), num -= 32);
			}
			if ((bytes[0] & 0x80) == 128)
			{
				return 0.0 - num4;
			}
			return num4;
		}
	}
	public class IgnoreDisposeStream : Stream
	{
		public Stream SourceStream { get; private set; }

		public bool IgnoreDispose { get; set; }

		public override bool CanRead => SourceStream.CanRead;

		public override bool CanSeek => SourceStream.CanSeek;

		public override bool CanWrite => SourceStream.CanWrite;

		public override long Length => SourceStream.Length;

		public override long Position
		{
			get
			{
				return SourceStream.Position;
			}
			set
			{
				SourceStream.Position = value;
			}
		}

		public IgnoreDisposeStream(Stream sourceStream)
		{
			SourceStream = sourceStream;
			IgnoreDispose = true;
		}

		public override void Flush()
		{
			SourceStream.Flush();
		}

		public override int Read(byte[] buffer, int offset, int count)
		{
			return SourceStream.Read(buffer, offset, count);
		}

		public override long Seek(long offset, SeekOrigin origin)
		{
			return SourceStream.Seek(offset, origin);
		}

		public override void SetLength(long value)
		{
			SourceStream.SetLength(value);
		}

		public override void Write(byte[] buffer, int offset, int count)
		{
			SourceStream.Write(buffer, offset, count);
		}

		protected override void Dispose(bool disposing)
		{
			if (!IgnoreDispose)
			{
				SourceStream.Dispose();
				SourceStream = null;
			}
		}
	}
	public static class NativeMethods
	{
		[DllImport("kernel32.dll")]
		public static extern IntPtr LoadLibrary(string dllToLoad);

		[DllImport("kernel32.dll")]
		public static extern IntPtr GetProcAddress(IntPtr hModule, string procedureName);

		[DllImport("kernel32.dll")]
		public static extern bool FreeLibrary(IntPtr hModule);
	}
	public static class WavePositionExtensions
	{
		public static TimeSpan GetPositionTimeSpan(this IWavePosition @this)
		{
			return TimeSpan.FromMilliseconds((double)(@this.GetPosition() / (@this.OutputWaveFormat.Channels * @this.OutputWaveFormat.BitsPerSample / 8)) * 1000.0 / (double)@this.OutputWaveFormat.SampleRate);
		}
	}
}
namespace NAudio.FileFormats.Wav
{
	public class WaveFileChunkReader
	{
		private WaveFormat waveFormat;

		private long dataChunkPosition;

		private long dataChunkLength;

		private List<RiffChunk> riffChunks;

		private readonly bool strictMode;

		private bool isRf64;

		private readonly bool storeAllChunks;

		private long riffSize;

		public WaveFormat WaveFormat => waveFormat;

		public long DataChunkPosition => dataChunkPosition;

		public long DataChunkLength => dataChunkLength;

		public List<RiffChunk> RiffChunks => riffChunks;

		public WaveFileChunkReader()
		{
			storeAllChunks = true;
			strictMode = false;
		}

		public void ReadWaveHeader(Stream stream)
		{
			dataChunkPosition = -1L;
			waveFormat = null;
			riffChunks = new List<RiffChunk>();
			dataChunkLength = 0L;
			BinaryReader binaryReader = new BinaryReader(stream);
			ReadRiffHeader(binaryReader);
			riffSize = binaryReader.ReadUInt32();
			if (binaryReader.ReadInt32() != ChunkIdentifier.ChunkIdentifierToInt32("WAVE"))
			{
				throw new FormatException("Not a WAVE file - no WAVE header");
			}
			if (isRf64)
			{
				ReadDs64Chunk(binaryReader);
			}
			int num = ChunkIdentifier.ChunkIdentifierToInt32("data");
			int num2 = ChunkIdentifier.ChunkIdentifierToInt32("fmt ");
			long num3 = Math.Min(riffSize + 8, stream.Length);
			while (stream.Position <= num3 - 8)
			{
				int num4 = binaryReader.ReadInt32();
				uint num5 = binaryReader.ReadUInt32();
				if (num4 == num)
				{
					dataChunkPosition = stream.Position;
					if (!isRf64)
					{
						dataChunkLength = num5;
					}
					stream.Position += num5;
				}
				else if (num4 == num2)
				{
					if (num5 > int.MaxValue)
					{
						throw new InvalidDataException($"Format chunk length must be between 0 and {int.MaxValue}.");
					}
					waveFormat = WaveFormat.FromFormatChunk(binaryReader, (int)num5);
				}
				else
				{
					if (num5 > stream.Length - stream.Position)
					{
						if (!strictMode)
						{
						}
						break;
					}
					if (storeAllChunks)
					{
						if (num5 > int.MaxValue)
						{
							throw new InvalidDataException($"RiffChunk chunk length must be between 0 and {int.MaxValue}.");
						}
						riffChunks.Add(GetRiffChunk(stream, num4, (int)num5));
					}
					stream.Position += num5;
				}
				if (num5 % 2 != 0 && binaryReader.PeekChar() == 0)
				{
					stream.Position++;
				}
			}
			if (waveFormat == null)
			{
				throw new FormatException("Invalid WAV file - No fmt chunk found");
			}
			if (dataChunkPosition == -1)
			{
				throw new FormatException("Invalid WAV file - No data chunk found");
			}
		}

		private void ReadDs64Chunk(BinaryReader reader)
		{
			int num = ChunkIdentifier.ChunkIdentifierToInt32("ds64");
			if (reader.ReadInt32() != num)
			{
				throw new FormatException("Invalid RF64 WAV file - No ds64 chunk found");
			}
			int num2 = reader.ReadInt32();
			riffSize = reader.ReadInt64();
			dataChunkLength = reader.ReadInt64();
			reader.ReadInt64();
			reader.ReadBytes(num2 - 24);
		}

		private static RiffChunk GetRiffChunk(Stream stream, int chunkIdentifier, int chunkLength)
		{
			return new RiffChunk(chunkIdentifier, chunkLength, stream.Position);
		}

		private void ReadRiffHeader(BinaryReader br)
		{
			int num = br.ReadInt32();
			if (num == ChunkIdentifier.ChunkIdentifierToInt32("RF64"))
			{
				isRf64 = true;
			}
			else if (num != ChunkIdentifier.ChunkIdentifierToInt32("RIFF"))
			{
				throw new FormatException("Not a WAVE file - no RIFF header");
			}
		}
	}
}
namespace NAudio.SoundFont
{
	public class Generator
	{
		public GeneratorEnum GeneratorType { get; set; }

		public ushort UInt16Amount { get; set; }

		public short Int16Amount
		{
			get
			{
				return (short)UInt16Amount;
			}
			set
			{
				UInt16Amount = (ushort)value;
			}
		}

		public byte LowByteAmount
		{
			get
			{
				return (byte)(UInt16Amount & 0xFFu);
			}
			set
			{
				UInt16Amount &= 65280;
				UInt16Amount += value;
			}
		}

		public byte HighByteAmount
		{
			get
			{
				return (byte)((UInt16Amount & 0xFF00) >> 8);
			}
			set
			{
				UInt16Amount &= 255;
				UInt16Amount += (ushort)(value << 8);
			}
		}

		public Instrument Instrument { get; set; }

		public SampleHeader SampleHeader { get; set; }

		public override string ToString()
		{
			if (GeneratorType == GeneratorEnum.Instrument)
			{
				return "Generator Instrument " + Instrument.Name;
			}
			if (GeneratorType == GeneratorEnum.SampleID)
			{
				return $"Generator SampleID {SampleHeader}";
			}
			return $"Generator {GeneratorType} {UInt16Amount}";
		}
	}
	internal class GeneratorBuilder : StructureBuilder<Generator>
	{
		public override int Length => 4;

		public Generator[] Generators => data.ToArray();

		public override Generator Read(BinaryReader br)
		{
			Generator generator = new Generator();
			generator.GeneratorType = (GeneratorEnum)br.ReadUInt16();
			generator.UInt16Amount = br.ReadUInt16();
			data.Add(generator);
			return generator;
		}

		public override void Write(BinaryWriter bw, Generator o)
		{
		}

		public void Load(Instrument[] instruments)
		{
			Generator[] generators = Generators;
			foreach (Generator generator in generators)
			{
				if (generator.GeneratorType == GeneratorEnum.Instrument)
				{
					generator.Instrument = instruments[generator.UInt16Amount];
				}
			}
		}

		public void Load(SampleHeader[] sampleHeaders)
		{
			Generator[] generators = Generators;
			foreach (Generator generator in generators)
			{
				if (generator.GeneratorType == GeneratorEnum.SampleID)
				{
					generator.SampleHeader = sampleHeaders[generator.UInt16Amount];
				}
			}
		}
	}
	public enum GeneratorEnum
	{
		StartAddressOffset,
		EndAddressOffset,
		StartLoopAddressOffset,
		EndLoopAddressOffset,
		StartAddressCoarseOffset,
		ModulationLFOToPitch,
		VibratoLFOToPitch,
		ModulationEnvelopeToPitch,
		InitialFilterCutoffFrequency,
		InitialFilterQ,
		ModulationLFOToFilterCutoffFrequency,
		ModulationEnvelopeToFilterCutoffFrequency,
		EndAddressCoarseOffset,
		ModulationLFOToVolume,
		Unused1,
		ChorusEffectsSend,
		ReverbEffectsSend,
		Pan,
		Unused2,
		Unused3,
		Unused4,
		DelayModulationLFO,
		FrequencyModulationLFO,
		DelayVibratoLFO,
		FrequencyVibratoLFO,
		DelayModulationEnvelope,
		AttackModulationEnvelope,
		HoldModulationEnvelope,
		DecayModulationEnvelope,
		SustainModulationEnvelope,
		ReleaseModulationEnvelope,
		KeyNumberToModulationEnvelopeHold,
		KeyNumberToModulationEnvelopeDecay,
		DelayVolumeEnvelope,
		AttackVolumeEnvelope,
		HoldVolumeEnvelope,
		DecayVolumeEnvelope,
		SustainVolumeEnvelope,
		ReleaseVolumeEnvelope,
		KeyNumberToVolumeEnvelopeHold,
		KeyNumberToVolumeEnvelopeDecay,
		Instrument,
		Reserved1,
		KeyRange,
		VelocityRange,
		StartLoopAddressCoarseOffset,
		KeyNumber,
		Velocity,
		InitialAttenuation,
		Reserved2,
		EndLoopAddressCoarseOffset,
		CoarseTune,
		FineTune,
		SampleID,
		SampleModes,
		Reserved3,
		ScaleTuning,
		ExclusiveClass,
		OverridingRootKey,
		Unused5,
		UnusedEnd
	}
	public class InfoChunk
	{
		public SFVersion SoundFontVersion { get; }

		public string WaveTableSoundEngine { get; set; }

		public string BankName { get; set; }

		public string DataROM { get; set; }

		public string CreationDate { get; set; }

		public string Author { get; set; }

		public string TargetProduct { get; set; }

		public string Copyright { get; set; }

		public string Comments { get; set; }

		public string Tools { get; set; }

		public SFVersion ROMVersion { get; set; }

		internal InfoChunk(RiffChunk chunk)
		{
			bool flag = false;
			bool flag2 = false;
			if (chunk.ReadChunkID() != "INFO")
			{
				throw new InvalidDataException("Not an INFO chunk");
			}
			RiffChunk nextSubChunk;
			while ((nextSubChunk = chunk.GetNextSubChunk()) != null)
			{
				switch (nextSubChunk.ChunkID)
				{
				case "ifil":
					flag = true;
					SoundFontVersion = nextSubChunk.GetDataAsStructure(new SFVersionBuilder());
					break;
				case "isng":
					WaveTableSoundEngine = nextSubChunk.GetDataAsString();
					break;
				case "INAM":
					flag2 = true;
					BankName = nextSubChunk.GetDataAsString();
					break;
				case "irom":
					DataROM = nextSubChunk.GetDataAsString();
					break;
				case "iver":
					ROMVersion = nextSubChunk.GetDataAsStructure(new SFVersionBuilder());
					break;
				case "ICRD":
					CreationDate = nextSubChunk.GetDataAsString();
					break;
				case "IENG":
					Author = nextSubChunk.GetDataAsString();
					break;
				case "IPRD":
					TargetProduct = nextSubChunk.GetDataAsString();
					break;
				case "ICOP":
					Copyright = nextSubChunk.GetDataAsString();
					break;
				case "ICMT":
					Comments = nextSubChunk.GetDataAsString();
					break;
				case "ISFT":
					Tools = nextSubChunk.GetDataAsString();
					break;
				default:
					throw new InvalidDataException("Unknown chunk type " + nextSubChunk.ChunkID);
				}
			}
			if (!flag)
			{
				throw new InvalidDataException("Missing SoundFont version information");
			}
			if (!flag2)
			{
				throw new InvalidDataException("Missing SoundFont name information");
			}
		}

		public override string ToString()
		{
			return string.Format("Bank Name: {0}\r\nAuthor: {1}\r\nCopyright: {2}\r\nCreation Date: {3}\r\nTools: {4}\r\nComments: {5}\r\nSound Engine: {6}\r\nSoundFont Version: {7}\r\nTarget Product: {8}\r\nData ROM: {9}\r\nROM Version: {10}", BankName, Author, Copyright, CreationDate, Tools, "TODO-fix comments", WaveTableSoundEngine, SoundFontVersion, TargetProduct, DataROM, ROMVersion);
		}
	}
	public class Instrument
	{
		internal ushort startInstrumentZoneIndex;

		internal ushort endInstrumentZoneIndex;

		public string Name { get; set; }

		public Zone[] Zones { get; set; }

		public override string ToString()
		{
			return Name;
		}
	}
	internal class InstrumentBuilder : StructureBuilder<Instrument>
	{
		private Instrument lastInstrument;

		public override int Length => 22;

		public Instrument[] Instruments => data.ToArray();

		public override Instrument Read(BinaryReader br)
		{
			Instrument instrument = new Instrument();
			string text = Encoding.UTF8.GetString(br.ReadBytes(20), 0, 20);
			if (text.IndexOf('\0') >= 0)
			{
				text = text.Substring(0, text.IndexOf('\0'));
			}
			instrument.Name = text;
			instrument.startInstrumentZoneIndex = br.ReadUInt16();
			if (lastInstrument != null)
			{
				lastInstrument.endInstrumentZoneIndex = (ushort)(instrument.startInstrumentZoneIndex - 1);
			}
			data.Add(instrument);
			lastInstrument = instrument;
			return instrument;
		}

		public override void Write(BinaryWriter bw, Instrument instrument)
		{
		}

		public void LoadZones(Zone[] zones)
		{
			for (int i = 0; i < data.Count - 1; i++)
			{
				Instrument instrument = data[i];
				instrument.Zones = new Zone[instrument.endInstrumentZoneIndex - instrument.startInstrumentZoneIndex + 1];
				Array.Copy(zones, instrument.startInstrumentZoneIndex, instrument.Zones, 0, instrument.Zones.Length);
			}
			data.RemoveAt(data.Count - 1);
		}
	}
	public enum TransformEnum
	{
		Linear
	}
	public class Modulator
	{
		public ModulatorType SourceModulationData { get; set; }

		public GeneratorEnum DestinationGenerator { get; set; }

		public short Amount { get; set; }

		public ModulatorType SourceModulationAmount { get; set; }

		public TransformEnum SourceTransform { get; set; }

		public override string ToString()
		{
			return $"Modulator {SourceModulationData} {DestinationGenerator} {Amount} {SourceModulationAmount} {SourceTransform}";
		}
	}
	internal class ModulatorBuilder : StructureBuilder<Modulator>
	{
		public override int Length => 10;

		public Modulator[] Modulators => data.ToArray();

		public override Modulator Read(BinaryReader br)
		{
			Modulator modulator = new Modulator();
			modulator.SourceModulationData = new ModulatorType(br.ReadUInt16());
			modulator.DestinationGenerator = (GeneratorEnum)br.ReadUInt16();
			modulator.Amount = br.ReadInt16();
			modulator.SourceModulationAmount = new ModulatorType(br.ReadUInt16());
			modulator.SourceTransform = (TransformEnum)br.ReadUInt16();
			data.Add(modulator);
			return modulator;
		}

		public override void Write(BinaryWriter bw, Modulator o)
		{
		}
	}
	public enum ControllerSourceEnum
	{
		NoController = 0,
		NoteOnVelocity = 2,
		NoteOnKeyNumber = 3,
		PolyPressure = 10,
		ChannelPressure = 13,
		PitchWheel = 14,
		PitchWheelSensitivity = 16
	}
	public enum SourceTypeEnum
	{
		Linear,
		Concave,
		Convex,
		Switch
	}
	public class ModulatorType
	{
		private bool polarity;

		private bool direction;

		private bool midiContinuousController;

		private ControllerSourceEnum controllerSource;

		private SourceTypeEnum sourceType;

		private ushort midiContinuousControllerNumber;

		internal ModulatorType(ushort raw)
		{
			polarity = (raw & 0x200) == 512;
			direction = (raw & 0x100) == 256;
			midiContinuousController = (raw & 0x80) == 128;
			sourceType = (SourceTypeEnum)((raw & 0xFC00) >> 10);
			controllerSource = (ControllerSourceEnum)(raw & 0x7F);
			midiContinuousControllerNumber = (ushort)(raw & 0x7Fu);
		}

		public override string ToString()
		{
			if (midiContinuousController)
			{
				return $"{sourceType} CC{midiContinuousControllerNumber}";
			}
			return $"{sourceType} {controllerSource}";
		}
	}
	public class Preset
	{
		internal ushort startPresetZoneIndex;

		internal ushort endPresetZoneIndex;

		internal uint library;

		internal uint genre;

		internal uint morphology;

		public string Name { get; set; }

		public ushort PatchNumber { get; set; }

		public ushort Bank { get; set; }

		public Zone[] Zones { get; set; }

		public override string ToString()
		{
			return $"{Bank}-{PatchNumber} {Name}";
		}
	}
	internal class PresetBuilder : StructureBuilder<Preset>
	{
		private Preset lastPreset;

		public override int Length => 38;

		public Preset[] Presets => data.ToArray();

		public override Preset Read(BinaryReader br)
		{
			Preset preset = new Preset();
			string text = Encoding.UTF8.GetString(br.ReadBytes(20), 0, 20);
			if (text.IndexOf('\0') >= 0)
			{
				text = text.Substring(0, text.IndexOf('\0'));
			}
			preset.Name = text;
			preset.PatchNumber = br.ReadUInt16();
			preset.Bank = br.ReadUInt16();
			preset.startPresetZoneIndex = br.ReadUInt16();
			preset.library = br.ReadUInt32();
			preset.genre = br.ReadUInt32();
			preset.morphology = br.ReadUInt32();
			if (lastPreset != null)
			{
				lastPreset.endPresetZoneIndex = (ushort)(preset.startPresetZoneIndex - 1);
			}
			data.Add(preset);
			lastPreset = preset;
			return preset;
		}

		public override void Write(BinaryWriter bw, Preset preset)
		{
		}

		public void LoadZones(Zone[] presetZones)
		{
			for (int i = 0; i < data.Count - 1; i++)
			{
				Preset preset = data[i];
				preset.Zones = new Zone[preset.endPresetZoneIndex - preset.startPresetZoneIndex + 1];
				Array.Copy(presetZones, preset.startPresetZoneIndex, preset.Zones, 0, preset.Zones.Length);
			}
			data.RemoveAt(data.Count - 1);
		}
	}
	public class PresetsChunk
	{
		private PresetBuilder presetHeaders = new PresetBuilder();

		private ZoneBuilder presetZones = new ZoneBuilder();

		private ModulatorBuilder presetZoneModulators = new ModulatorBuilder();

		private GeneratorBuilder presetZoneGenerators = new GeneratorBuilder();

		private InstrumentBuilder instruments = new InstrumentBuilder();

		private ZoneBuilder instrumentZones = new ZoneBuilder();

		private ModulatorBuilder instrumentZoneModulators = new ModulatorBuilder();

		private GeneratorBuilder instrumentZoneGenerators = new GeneratorBuilder();

		private SampleHeaderBuilder sampleHeaders = new SampleHeaderBuilder();

		public Preset[] Presets => presetHeaders.Presets;

		public Instrument[] Instruments => instruments.Instruments;

		public SampleHeader[] SampleHeaders => sampleHeaders.SampleHeaders;

		internal PresetsChunk(RiffChunk chunk)
		{
			string text = chunk.ReadChunkID();
			if (text != "pdta")
			{
				throw new InvalidDataException($"Not a presets data chunk ({text})");
			}
			RiffChunk nextSubChunk;
			while ((nextSubChunk = chunk.GetNextSubChunk()) != null)
			{
				switch (nextSubChunk.ChunkID)
				{
				case "phdr":
				case "PHDR":
					nextSubChunk.GetDataAsStructureArray(presetHeaders);
					break;
				case "pbag":
				case "PBAG":
					nextSubChunk.GetDataAsStructureArray(presetZones);
					break;
				case "pmod":
				case "PMOD":
					nextSubChunk.GetDataAsStructureArray(presetZoneModulators);
					break;
				case "pgen":
				case "PGEN":
					nextSubChunk.GetDataAsStructureArray(presetZoneGenerators);
					break;
				case "inst":
				case "INST":
					nextSubChunk.GetDataAsStructureArray(instruments);
					break;
				case "ibag":
				case "IBAG":
					nextSubChunk.GetDataAsStructureArray(instrumentZones);
					break;
				case "imod":
				case "IMOD":
					nextSubChunk.GetDataAsStructureArray(instrumentZoneModulators);
					break;
				case "igen":
				case "IGEN":
					nextSubChunk.GetDataAsStructureArray(instrumentZoneGenerators);
					break;
				case "shdr":
				case "SHDR":
					nextSubChunk.GetDataAsStructureArray(sampleHeaders);
					break;
				default:
					throw new InvalidDataException($"Unknown chunk type {nextSubChunk.ChunkID}");
				}
			}
			instrumentZoneGenerators.Load(sampleHeaders.SampleHeaders);
			instrumentZones.Load(instrumentZoneModulators.Modulators, instrumentZoneGenerators.Generators);
			instruments.LoadZones(instrumentZones.Zones);
			presetZoneGenerators.Load(instruments.Instruments);
			presetZones.Load(presetZoneModulators.Modulators, presetZoneGenerators.Generators);
			presetHeaders.LoadZones(presetZones.Zones);
			sampleHeaders.RemoveEOS();
		}

		public override string ToString()
		{
			StringBuilder stringBuilder = new StringBuilder();
			stringBuilder.Append("Preset Headers:\r\n");
			Preset[] presets = presetHeaders.Presets;
			foreach (Preset arg in presets)
			{
				stringBuilder.AppendFormat("{0}\r\n", arg);
			}
			stringBuilder.Append("Instruments:\r\n");
			Instrument[] array = instruments.Instruments;
			foreach (Instrument arg2 in array)
			{
				stringBuilder.AppendFormat("{0}\r\n", arg2);
			}
			return stringBuilder.ToString();
		}
	}
	internal class RiffChunk
	{
		private string chunkID;

		private BinaryReader riffFile;

		public string ChunkID
		{
			get
			{
				return chunkID;
			}
			set
			{
				if (value == null)
				{
					throw new ArgumentNullException("ChunkID may not be null");
				}
				if (value.Length != 4)
				{
					throw new ArgumentException("ChunkID must be four characters");
				}
				chunkID = value;
			}
		}

		public uint ChunkSize { get; private set; }

		public long DataOffset { get; private set; }

		public static RiffChunk GetTopLevelChunk(BinaryReader file)
		{
			RiffChunk riffChunk = new RiffChunk(file);
			riffChunk.ReadChunk();
			return riffChunk;
		}

		private RiffChunk(BinaryReader file)
		{
			riffFile = file;
			chunkID = "????";
			ChunkSize = 0u;
			DataOffset = 0L;
		}

		public string ReadChunkID()
		{
			byte[] array = riffFile.ReadBytes(4);
			if (array.Length != 4)
			{
				throw new InvalidDataException("Couldn't read Chunk ID");
			}
			return ByteEncoding.Instance.GetString(array, 0, array.Length);
		}

		private void ReadChunk()
		{
			chunkID = ReadChunkID();
			ChunkSize = riffFile.ReadUInt32();
			DataOffset = riffFile.BaseStream.Position;
		}

		public RiffChunk GetNextSubChunk()
		{
			if (riffFile.BaseStream.Position + 8 < DataOffset + ChunkSize)
			{
				RiffChunk riffChunk = new RiffChunk(riffFile);
				riffChunk.ReadChunk();
				return riffChunk;
			}
			return null;
		}

		public byte[] GetData()
		{
			riffFile.BaseStream.Position = DataOffset;
			byte[] array = riffFile.ReadBytes((int)ChunkSize);
			if (array.Length != ChunkSize)
			{
				throw new InvalidDataException($"Couldn't read chunk's data Chunk: {this}, read {array.Length} bytes");
			}
			return array;
		}

		public string GetDataAsString()
		{
			byte[] data = GetData();
			if (data == null)
			{
				return null;
			}
			return ByteEncoding.Instance.GetString(data, 0, data.Length);
		}

		public T GetDataAsStructure<T>(StructureBuilder<T> s)
		{
			riffFile.BaseStream.Position = DataOffset;
			if (s.Length != ChunkSize)
			{
				throw new InvalidDataException($"Chunk size is: {ChunkSize} so can't read structure of: {s.Length}");
			}
			return s.Read(riffFile);
		}

		public T[] GetDataAsStructureArray<T>(StructureBuilder<T> s)
		{
			riffFile.BaseStream.Position = DataOffset;
			if (ChunkSize % s.Length != 0L)
			{
				throw new InvalidDataException($"Chunk size is: {ChunkSize} not a multiple of structure size: {s.Length}");
			}
			int num = (int)(ChunkSize / s.Length);
			T[] array = new T[num];
			for (int i = 0; i < num; i++)
			{
				array[i] = s.Read(riffFile);
			}
			return array;
		}

		public override string ToString()
		{
			return $"RiffChunk ID: {ChunkID} Size: {ChunkSize} Data Offset: {DataOffset}";
		}
	}
	internal class SampleDataChunk
	{
		public byte[] SampleData { get; private set; }

		public SampleDataChunk(RiffChunk chunk)
		{
			string text = chunk.ReadChunkID();
			if (text != "sdta")
			{
				throw new InvalidDataException("Not a sample data chunk (" + text + ")");
			}
			SampleData = chunk.GetData();
		}
	}
	public class SampleHeader
	{
		public string SampleName;

		public uint Start;

		public uint End;

		public uint StartLoop;

		public uint EndLoop;

		public uint SampleRate;

		public byte OriginalPitch;

		public sbyte PitchCorrection;

		public ushort SampleLink;

		public SFSampleLink SFSampleLink;

		public override string ToString()
		{
			return SampleName;
		}
	}
	internal class SampleHeaderBuilder : StructureBuilder<SampleHeader>
	{
		public override int Length => 46;

		public SampleHeader[] SampleHeaders => data.ToArray();

		public override SampleHeader Read(BinaryReader br)
		{
			SampleHeader sampleHeader = new SampleHeader();
			byte[] array = br.ReadBytes(20);
			sampleHeader.SampleName = ByteEncoding.Instance.GetString(array, 0, array.Length);
			sampleHeader.Start = br.ReadUInt32();
			sampleHeader.End = br.ReadUInt32();
			sampleHeader.StartLoop = br.ReadUInt32();
			sampleHeader.EndLoop = br.ReadUInt32();
			sampleHeader.SampleRate = br.ReadUInt32();
			sampleHeader.OriginalPitch = br.ReadByte();
			sampleHeader.PitchCorrection = br.ReadSByte();
			sampleHeader.SampleLink = br.ReadUInt16();
			sampleHeader.SFSampleLink = (SFSampleLink)br.ReadUInt16();
			data.Add(sampleHeader);
			return sampleHeader;
		}

		public override void Write(BinaryWriter bw, SampleHeader sampleHeader)
		{
		}

		internal void RemoveEOS()
		{
			data.RemoveAt(data.Count - 1);
		}
	}
	public enum SampleMode
	{
		NoLoop,
		LoopContinuously,
		ReservedNoLoop,
		LoopAndContinue
	}
	public enum SFSampleLink : ushort
	{
		MonoSample = 1,
		RightSample = 2,
		LeftSample = 4,
		LinkedSample = 8,
		RomMonoSample = 32769,
		RomRightSample = 32770,
		RomLeftSample = 32772,
		RomLinkedSample = 32776
	}
	public class SFVersion
	{
		public short Major { get; set; }

		public short Minor { get; set; }
	}
	internal class SFVersionBuilder : StructureBuilder<SFVersion>
	{
		public override int Length => 4;

		public override SFVersion Read(BinaryReader br)
		{
			SFVersion sFVersion = new SFVersion();
			sFVersion.Major = br.ReadInt16();
			sFVersion.Minor = br.ReadInt16();
			data.Add(sFVersion);
			return sFVersion;
		}

		public override void Write(BinaryWriter bw, SFVersion v)
		{
			bw.Write(v.Major);
			bw.Write(v.Minor);
		}
	}
	public class SoundFont
	{
		private InfoChunk info;

		private PresetsChunk presetsChunk;

		private SampleDataChunk sampleData;

		public InfoChunk FileInfo => info;

		public Preset[] Presets => presetsChunk.Presets;

		public Instrument[] Instruments => presetsChunk.Instruments;

		public SampleHeader[] SampleHeaders => presetsChunk.SampleHeaders;

		public byte[] SampleData => sampleData.SampleData;

		public SoundFont(string fileName)
			: this(new FileStream(fileName, FileMode.Open, FileAccess.Read))
		{
		}

		public SoundFont(Stream sfFile)
		{
			using (sfFile)
			{
				RiffChunk topLevelChunk = RiffChunk.GetTopLevelChunk(new BinaryReader(sfFile));
				if (topLevelChunk.ChunkID == "RIFF")
				{
					string text = topLevelChunk.ReadChunkID();
					if (text != "sfbk")
					{
						throw new InvalidDataException($"Not a SoundFont ({text})");
					}
					RiffChunk nextSubChunk = topLevelChunk.GetNextSubChunk();
					if (nextSubChunk.ChunkID == "LIST")
					{
						info = new InfoChunk(nextSubChunk);
						RiffChunk nextSubChunk2 = topLevelChunk.GetNextSubChunk();
						sampleData = new SampleDataChunk(nextSubChunk2);
						nextSubChunk2 = topLevelChunk.GetNextSubChunk();
						presetsChunk = new PresetsChunk(nextSubChunk2);
						return;
					}
					throw new InvalidDataException($"Not info list found ({nextSubChunk.ChunkID})");
				}
				throw new InvalidDataException("Not a RIFF file");
			}
		}

		public override string ToString()
		{
			return $"Info Chunk:\r\n{info}\r\nPresets Chunk:\r\n{presetsChunk}";
		}
	}
	internal abstract class StructureBuilder<T>
	{
		protected List<T> data;

		public abstract int Length { get; }

		public T[] Data => data.ToArray();

		public StructureBuilder()
		{
			Reset();
		}

		public abstract T Read(BinaryReader br);

		public abstract void Write(BinaryWriter bw, T o);

		public void Reset()
		{
			data = new List<T>();
		}
	}
	public class Zone
	{
		internal ushort generatorIndex;

		internal ushort modulatorIndex;

		internal ushort generatorCount;

		internal ushort modulatorCount;

		public Modulator[] Modulators { get; set; }

		public Generator[] Generators { get; set; }

		public override string ToString()
		{
			return $"Zone {generatorCount} Gens:{generatorIndex} {modulatorCount} Mods:{modulatorIndex}";
		}
	}
	internal class ZoneBuilder : StructureBuilder<Zone>
	{
		private Zone lastZone;

		public Zone[] Zones => data.ToArray();

		public override int Length => 4;

		public override Zone Read(BinaryReader br)
		{
			Zone zone = new Zone();
			zone.generatorIndex = br.ReadUInt16();
			zone.modulatorIndex = br.ReadUInt16();
			if (lastZone != null)
			{
				lastZone.generatorCount = (ushort)(zone.generatorIndex - lastZone.generatorIndex);
				lastZone.modulatorCount = (ushort)(zone.modulatorIndex - lastZone.modulatorIndex);
			}
			data.Add(zone);
			lastZone = zone;
			return zone;
		}

		public override void Write(BinaryWriter bw, Zone zone)
		{
		}

		public void Load(Modulator[] modulators, Generator[] generators)
		{
			for (int i = 0; i < data.Count - 1; i++)
			{
				Zone zone = data[i];
				zone.Generators = new Generator[zone.generatorCount];
				Array.Copy(generators, zone.generatorIndex, zone.Generators, 0, zone.generatorCount);
				zone.Modulators = new Modulator[zone.modulatorCount];
				Array.Copy(modulators, zone.modulatorIndex, zone.Modulators, 0, zone.modulatorCount);
			}
			data.RemoveAt(data.Count - 1);
		}
	}
}
namespace NAudio.Wave
{
	public enum ChannelMode
	{
		Stereo,
		JointStereo,
		DualChannel,
		Mono
	}
	public class Id3v2Tag
	{
		private long tagStartPosition;

		private long tagEndPosition;

		private byte[] rawData;

		public byte[] RawData => rawData;

		public static Id3v2Tag ReadTag(Stream input)
		{
			try
			{
				return new Id3v2Tag(input);
			}
			catch (FormatException)
			{
				return null;
			}
		}

		public static Id3v2Tag Create(IEnumerable<KeyValuePair<string, string>> tags)
		{
			return ReadTag(CreateId3v2TagStream(tags));
		}

		private static byte[] FrameSizeToBytes(int n)
		{
			byte[] bytes = BitConverter.GetBytes(n);
			Array.Reverse((Array)bytes);
			return bytes;
		}

		private static byte[] CreateId3v2Frame(string key, string value)
		{
			if (string.IsNullOrEmpty(key))
			{
				throw new ArgumentNullException("key");
			}
			if (string.IsNullOrEmpty(value))
			{
				throw new ArgumentNullException("value");
			}
			if (key.Length != 4)
			{
				throw new ArgumentOutOfRangeException("key", "key " + key + " must be 4 characters long");
			}
			byte[] array = new byte[2] { 255, 254 };
			byte[] array2 = new byte[3];
			byte[] array3 = new byte[2];
			byte[] array4 = ((!(key == "COMM")) ? ByteArrayExtensions.Concat(new byte[1] { 1 }, array, Encoding.Unicode.GetBytes(value)) : ByteArrayExtensions.Concat(new byte[1] { 1 }, array2, array3, array, Encoding.Unicode.GetBytes(value)));
			return ByteArrayExtensions.Concat(Encoding.UTF8.GetBytes(key), FrameSizeToBytes(array4.Length), new byte[2], array4);
		}

		private static byte[] GetId3TagHeaderSize(int size)
		{
			byte[] array = new byte[4];
			for (int num = array.Length - 1; num >= 0; num--)
			{
				array[num] = (byte)(size % 128);
				size /= 128;
			}
			return array;
		}

		private static byte[] CreateId3v2TagHeader(IEnumerable<byte[]> frames)
		{
			int num = 0;
			foreach (byte[] frame in frames)
			{
				num += frame.Length;
			}
			return ByteArrayExtensions.Concat(Encoding.UTF8.GetBytes("ID3"), new byte[2] { 3, 0 }, new byte[1], GetId3TagHeaderSize(num));
		}

		private static Stream CreateId3v2TagStream(IEnumerable<KeyValuePair<string, string>> tags)
		{
			List<byte[]> list = new List<byte[]>();
			foreach (KeyValuePair<string, string> tag in tags)
			{
				list.Add(CreateId3v2Frame(tag.Key, tag.Value));
			}
			byte[] array = CreateId3v2TagHeader(list);
			MemoryStream memoryStream = new MemoryStream();
			memoryStream.Write(array, 0, array.Length);
			foreach (byte[] item in list)
			{
				memoryStream.Write(item, 0, item.Length);
			}
			memoryStream.Position = 0L;
			return memoryStream;
		}

		private Id3v2Tag(Stream input)
		{
			tagStartPosition = input.Position;
			BinaryReader binaryReader = new BinaryReader(input);
			byte[] array = binaryReader.ReadBytes(10);
			if (array.Length >= 3 && array[0] == 73 && array[1] == 68 && array[2] == 51)
			{
				if ((array[5] & 0x40) == 64)
				{
					byte[] array2 = binaryReader.ReadBytes(4);
					_ = array2[0] * 2097152 + array2[1] * 16384 + array2[2] * 128;
					_ = array2[3];
				}
				int num = array[6] * 2097152;
				num += array[7] * 16384;
				num += array[8] * 128;
				num += array[9];
				binaryReader.ReadBytes(num);
				if ((array[5] & 0x10) == 16)
				{
					binaryReader.ReadBytes(10);
				}
				tagEndPosition = input.Position;
				input.Position = tagStartPosition;
				rawData = binaryReader.ReadBytes((int)(tagEndPosition - tagStartPosition));
				return;
			}
			input.Position = tagStartPosition;
			throw new FormatException("Not an ID3v2 tag");
		}
	}
	public interface IMp3FrameDecompressor : IDisposable
	{
		WaveFormat OutputFormat { get; }

		int DecompressFrame(Mp3Frame frame, byte[] dest, int destOffset);

		void Reset();
	}
	public class Mp3Frame
	{
		private static readonly int[,,] bitRates = new int[2, 3, 15]
		{
			{
				{
					0, 32, 64, 96, 128, 160, 192, 224, 256, 288,
					320, 352, 384, 416, 448
				},
				{
					0, 32, 48, 56, 64, 80, 96, 112, 128, 160,
					192, 224, 256, 320, 384
				},
				{
					0, 32, 40, 48, 56, 64, 80, 96, 112, 128,
					160, 192, 224, 256, 320
				}
			},
			{
				{
					0, 32, 48, 56, 64, 80, 96, 112, 128, 144,
					160, 176, 192, 224, 256
				},
				{
					0, 8, 16, 24, 32, 40, 48, 56, 64, 80,
					96, 112, 128, 144, 160
				},
				{
					0, 8, 16, 24, 32, 40, 48, 56, 64, 80,
					96, 112, 128, 144, 160
				}
			}
		};

		private static readonly int[,] samplesPerFrame = new int[2, 3]
		{
			{ 384, 1152, 1152 },
			{ 384, 1152, 576 }
		};

		private static readonly int[] sampleRatesVersion1 = new int[3] { 44100, 48000, 32000 };

		private static readonly int[] sampleRatesVersion2 = new int[3] { 22050, 24000, 16000 };

		private static readonly int[] sampleRatesVersion25 = new int[3] { 11025, 12000, 8000 };

		private const int MaxFrameLength = 16384;

		public int SampleRate { get; private set; }

		public int FrameLength { get; private set; }

		public int BitRate { get; private set; }

		public byte[] RawData { get; private set; }

		public MpegVersion MpegVersion { get; private set; }

		public MpegLayer MpegLayer { get; private set; }

		public ChannelMode ChannelMode { get; private set; }

		public int SampleCount { get; private set; }

		public int ChannelExtension { get; private set; }

		public int BitRateIndex { get; private set; }

		public bool Copyright { get; private set; }

		public bool CrcPresent { get; private set; }

		public long FileOffset { get; private set; }

		public static Mp3Frame LoadFromStream(Stream input)
		{
			return LoadFromStream(input, readData: true);
		}

		public static Mp3Frame LoadFromStream(Stream input, bool readData)
		{
			Mp3Frame mp3Frame = new Mp3Frame();
			mp3Frame.FileOffset = input.Position;
			byte[] array = new byte[4];
			if (input.Read(array, 0, array.Length) < array.Length)
			{
				return null;
			}
			while (!IsValidHeader(array, mp3Frame))
			{
				array[0] = array[1];
				array[1] = array[2];
				array[2] = array[3];
				if (input.Read(array, 3, 1) < 1)
				{
					return null;
				}
				mp3Frame.FileOffset++;
			}
			int num = mp3Frame.FrameLength - 4;
			if (readData)
			{
				mp3Frame.RawData = new byte[mp3Frame.FrameLength];
				Array.Copy(array, mp3Frame.RawData, 4);
				if (input.Read(mp3Frame.RawData, 4, num) < num)
				{
					throw new EndOfStreamException("Unexpected end of stream before frame complete");
				}
			}
			else
			{
				input.Position += num;
			}
			return mp3Frame;
		}

		private Mp3Frame()
		{
		}

		private static bool IsValidHeader(byte[] headerBytes, Mp3Frame frame)
		{
			if (headerBytes[0] == byte.MaxValue && (headerBytes[1] & 0xE0) == 224)
			{
				frame.MpegVersion = (MpegVersion)((headerBytes[1] & 0x18) >> 3);
				if (frame.MpegVersion == MpegVersion.Reserved)
				{
					return false;
				}
				frame.MpegLayer = (MpegLayer)((headerBytes[1] & 6) >> 1);
				if (frame.MpegLayer == MpegLayer.Reserved)
				{
					return false;
				}
				int num = ((frame.MpegLayer != MpegLayer.Layer1) ? ((frame.MpegLayer == MpegLayer.Layer2) ? 1 : 2) : 0);
				frame.CrcPresent = (headerBytes[1] & 1) == 0;
				frame.BitRateIndex = (headerBytes[2] & 0xF0) >> 4;
				if (frame.BitRateIndex == 15)
				{
					return false;
				}
				int num2 = ((frame.MpegVersion != MpegVersion.Version1) ? 1 : 0);
				frame.BitRate = bitRates[num2, num, frame.BitRateIndex] * 1000;
				if (frame.BitRate == 0)
				{
					return false;
				}
				int num3 = (headerBytes[2] & 0xC) >> 2;
				if (num3 == 3)
				{
					return false;
				}
				if (frame.MpegVersion == MpegVersion.Version1)
				{
					frame.SampleRate = sampleRatesVersion1[num3];
				}
				else if (frame.MpegVersion == MpegVersion.Version2)
				{
					frame.SampleRate = sampleRatesVersion2[num3];
				}
				else
				{
					frame.SampleRate = sampleRatesVersion25[num3];
				}
				bool flag = (headerBytes[2] & 2) == 2;
				_ = headerBytes[2];
				frame.ChannelMode = (ChannelMode)((headerBytes[3] & 0xC0) >> 6);
				frame.ChannelExtension = (headerBytes[3] & 0x30) >> 4;
				if (frame.ChannelExtension != 0 && frame.ChannelMode != ChannelMode.JointStereo)
				{
					return false;
				}
				frame.Copyright = (headerBytes[3] & 8) == 8;
				_ = headerBytes[3];
				_ = headerBytes[3];
				int num4 = (flag ? 1 : 0);
				frame.SampleCount = samplesPerFrame[num2, num];
				int num5 = frame.SampleCount / 8;
				if (frame.MpegLayer == MpegLayer.Layer1)
				{
					frame.FrameLength = (num5 * frame.BitRate / frame.SampleRate + num4) * 4;
				}
				else
				{
					frame.FrameLength = num5 * frame.BitRate / frame.SampleRate + num4;
				}
				if (frame.FrameLength > 16384)
				{
					return false;
				}
				return true;
			}
			return false;
		}
	}
	public enum MpegLayer
	{
		Reserved,
		Layer3,
		Layer2,
		Layer1
	}
	public enum MpegVersion
	{
		Version25,
		Reserved,
		Version2,
		Version1
	}
	public class XingHeader
	{
		[Flags]
		private enum XingHeaderOptions
		{
			Frames = 1,
			Bytes = 2,
			Toc = 4,
			VbrScale = 8
		}

		private static int[] sr_table = new int[4] { 44100, 48000, 32000, 99999 };

		private int vbrScale = -1;

		private int startOffset;

		private int endOffset;

		private int tocOffset = -1;

		private int framesOffset = -1;

		private int bytesOffset = -1;

		private Mp3Frame frame;

		public int Frames
		{
			get
			{
				if (framesOffset == -1)
				{
					return -1;
				}
				return ReadBigEndian(frame.RawData, framesOffset);
			}
			set
			{
				if (framesOffset == -1)
				{
					throw new InvalidOperationException("Frames flag is not set");
				}
				WriteBigEndian(frame.RawData, framesOffset, value);
			}
		}

		public int Bytes
		{
			get
			{
				if (bytesOffset == -1)
				{
					return -1;
				}
				return ReadBigEndian(frame.RawData, bytesOffset);
			}
			set
			{
				if (framesOffset == -1)
				{
					throw new InvalidOperationException("Bytes flag is not set");
				}
				WriteBigEndian(frame.RawData, bytesOffset, value);
			}
		}

		public int VbrScale => vbrScale;

		public Mp3Frame Mp3Frame => frame;

		private static int ReadBigEndian(byte[] buffer, int offset)
		{
			return (((((buffer[offset] << 8) | buffer[offset + 1]) << 8) | buffer[offset + 2]) << 8) | buffer[offset + 3];
		}

		private void WriteBigEndian(byte[] buffer, int offset, int value)
		{
			byte[] bytes = BitConverter.GetBytes(value);
			for (int i = 0; i < 4; i++)
			{
				buffer[offset + 3 - i] = bytes[i];
			}
		}

		public static XingHeader LoadXingHeader(Mp3Frame frame)
		{
			XingHeader xingHeader = new XingHeader();
			xingHeader.frame = frame;
			int num = 0;
			if (frame.MpegVersion == MpegVersion.Version1)
			{
				num = ((frame.ChannelMode == ChannelMode.Mono) ? 21 : 36);
			}
			else
			{
				if (frame.MpegVersion != MpegVersion.Version2)
				{
					return null;
				}
				num = ((frame.ChannelMode == ChannelMode.Mono) ? 13 : 21);
			}
			if (frame.RawData[num] == 88 && frame.RawData[num + 1] == 105 && frame.RawData[num + 2] == 110 && frame.RawData[num + 3] == 103)
			{
				xingHeader.startOffset = num;
				num += 4;
			}
			else
			{
				if (frame.RawData[num] != 73 || frame.RawData[num + 1] != 110 || frame.RawData[num + 2] != 102 || frame.RawData[num + 3] != 111)
				{
					return null;
				}
				xingHeader.startOffset = num;
				num += 4;
			}
			int num2 = ReadBigEndian(frame.RawData, num);
			num += 4;
			if (((uint)num2 & (true ? 1u : 0u)) != 0)
			{
				xingHeader.framesOffset = num;
				num += 4;
			}
			if (((uint)num2 & 2u) != 0)
			{
				xingHeader.bytesOffset = num;
				num += 4;
			}
			if (((uint)num2 & 4u) != 0)
			{
				xingHeader.tocOffset = num;
				num += 100;
			}
			if (((uint)num2 & 8u) != 0)
			{
				xingHeader.vbrScale = ReadBigEndian(frame.RawData, num);
				num += 4;
			}
			xingHeader.endOffset = num;
			return xingHeader;
		}

		private XingHeader()
		{
		}
	}
	public static class WaveExtensionMethods
	{
		public static ISampleProvider ToSampleProvider(this IWaveProvider waveProvider)
		{
			return SampleProviderConverters.ConvertWaveProviderIntoSampleProvider(waveProvider);
		}

		public static void Init(this IWavePlayer wavePlayer, ISampleProvider sampleProvider, bool convertTo16Bit = false)
		{
			IWaveProvider waveProvider2;
			if (!convertTo16Bit)
			{
				IWaveProvider waveProvider = new SampleToWaveProvider(sampleProvider);
				waveProvider2 = waveProvider;
			}
			else
			{
				IWaveProvider waveProvider = new SampleToWaveProvider16(sampleProvider);
				waveProvider2 = waveProvider;
			}
			IWaveProvider waveProvider3 = waveProvider2;
			wavePlayer.Init(waveProvider3);
		}

		public static WaveFormat AsStandardWaveFormat(this WaveFormat waveFormat)
		{
			if (!(waveFormat is WaveFormatExtensible waveFormatExtensible))
			{
				return waveFormat;
			}
			return waveFormatExtensible.ToStandardWaveFormat();
		}

		public static IWaveProvider ToWaveProvider(this ISampleProvider sampleProvider)
		{
			return new SampleToWaveProvider(sampleProvider);
		}

		public static IWaveProvider ToWaveProvider16(this ISampleProvider sampleProvider)
		{
			return new SampleToWaveProvider16(sampleProvider);
		}

		public static ISampleProvider FollowedBy(this ISampleProvider sampleProvider, ISampleProvider next)
		{
			return new ConcatenatingSampleProvider(new ISampleProvider[2] { sampleProvider, next });
		}

		public static ISampleProvider FollowedBy(this ISampleProvider sampleProvider, TimeSpan silenceDuration, ISampleProvider next)
		{
			OffsetSampleProvider offsetSampleProvider = new OffsetSampleProvider(sampleProvider)
			{
				LeadOut = silenceDuration
			};
			return new ConcatenatingSampleProvider(new ISampleProvider[2] { offsetSampleProvider, next });
		}

		public static ISampleProvider Skip(this ISampleProvider sampleProvider, TimeSpan skipDuration)
		{
			return new OffsetSampleProvider(sampleProvider)
			{
				SkipOver = skipDuration
			};
		}

		public static ISampleProvider Take(this ISampleProvider sampleProvider, TimeSpan takeDuration)
		{
			return new OffsetSampleProvider(sampleProvider)
			{
				Take = takeDuration
			};
		}

		public static ISampleProvider ToMono(this ISampleProvider sourceProvider, float leftVol = 0.5f, float rightVol = 0.5f)
		{
			if (sourceProvider.WaveFormat.Channels == 1)
			{
				return sourceProvider;
			}
			return new StereoToMonoSampleProvider(sourceProvider)
			{
				LeftVolume = leftVol,
				RightVolume = rightVol
			};
		}

		public static ISampleProvider ToStereo(this ISampleProvider sourceProvider, float leftVol = 1f, float rightVol = 1f)
		{
			if (sourceProvider.WaveFormat.Channels == 2)
			{
				return sourceProvider;
			}
			return new MonoToStereoSampleProvider(sourceProvider)
			{
				LeftVolume = leftVol,
				RightVolume = rightVol
			};
		}
	}
	[StructLayout(LayoutKind.Sequential, Pack = 2)]
	public class AdpcmWaveFormat : WaveFormat
	{
		private short samplesPerBlock;

		private short numCoeff;

		[MarshalAs(UnmanagedType.ByValArray, SizeConst = 14)]
		private short[] coefficients;

		public int SamplesPerBlock => samplesPerBlock;

		public int NumCoefficients => numCoeff;

		public short[] Coefficients => coefficients;

		private AdpcmWaveFormat()
			: this(8000, 1)
		{
		}

		public AdpcmWaveFormat(int sampleRate, int channels)
			: base(sampleRate, 0, channels)
		{
			waveFormatTag = WaveFormatEncoding.Adpcm;
			extraSize = 32;
			switch (base.sampleRate)
			{
			case 8000:
			case 11025:
				blockAlign = 256;
				break;
			case 22050:
				blockAlign = 512;
				break;
			default:
				blockAlign = 1024;
				break;
			}
			bitsPerSample = 4;
			samplesPerBlock = (short)((blockAlign - 7 * channels) * 8 / (bitsPerSample * channels) + 2);
			averageBytesPerSecond = base.SampleRate * blockAlign / samplesPerBlock;
			numCoeff = 7;
			coefficients = new short[14]
			{
				256, 0, 512, -256, 0, 0, 192, 64, 240, 0,
				460, -208, 392, -232
			};
		}

		public override void Serialize(BinaryWriter writer)
		{
			base.Serialize(writer);
			writer.Write(samplesPerBlock);
			writer.Write(numCoeff);
			short[] array = coefficients;
			foreach (short value in array)
			{
				writer.Write(value);
			}
		}

		public override string ToString()
		{
			return $"Microsoft ADPCM {base.SampleRate} Hz {channels} channels {bitsPerSample} bits per sample {samplesPerBlock} samples per block";
		}
	}
	[StructLayout(LayoutKind.Sequential, Pack = 2)]
	public class Gsm610WaveFormat : WaveFormat
	{
		private readonly short samplesPerBlock;

		public short SamplesPerBlock => samplesPerBlock;

		public Gsm610WaveFormat()
		{
			waveFormatTag = WaveFormatEncoding.Gsm610;
			channels = 1;
			averageBytesPerSecond = 1625;
			bitsPerSample = 0;
			blockAlign = 65;
			sampleRate = 8000;
			extraSize = 2;
			samplesPerBlock = 320;
		}

		public override void Serialize(BinaryWriter writer)
		{
			base.Serialize(writer);
			writer.Write(samplesPerBlock);
		}
	}
	[StructLayout(LayoutKind.Sequential, Pack = 2)]
	public class ImaAdpcmWaveFormat : WaveFormat
	{
		private short samplesPerBlock;

		private ImaAdpcmWaveFormat()
		{
		}

		public ImaAdpcmWaveFormat(int sampleRate, int channels, int bitsPerSample)
		{
			waveFormatTag = WaveFormatEncoding.DviAdpcm;
			base.sampleRate = sampleRate;
			base.channels = (short)channels;
			base.bitsPerSample = (short)bitsPerSample;
			extraSize = 2;
			blockAlign = 0;
			averageBytesPerSecond = 0;
			samplesPerBlock = 0;
		}
	}
	[StructLayout(LayoutKind.Sequential, Pack = 2)]
	public class Mp3WaveFormat : WaveFormat
	{
		public Mp3WaveFormatId id;

		public Mp3WaveFormatFlags flags;

		public ushort blockSize;

		public ushort framesPerBlock;

		public ushort codecDelay;

		private const short Mp3WaveFormatExtraBytes = 12;

		public Mp3WaveFormat(int sampleRate, int channels, int blockSize, int bitRate)
		{
			waveFormatTag = WaveFormatEncoding.MpegLayer3;
			base.channels = (short)channels;
			averageBytesPerSecond = bitRate / 8;
			bitsPerSample = 0;
			blockAlign = 1;
			base.sampleRate = sampleRate;
			extraSize = 12;
			id = Mp3WaveFormatId.Mpeg;
			flags = Mp3WaveFormatFlags.PaddingIso;
			this.blockSize = (ushort)blockSize;
			framesPerBlock = 1;
			codecDelay = 0;
		}
	}
	[Flags]
	public enum Mp3WaveFormatFlags
	{
		PaddingIso = 0,
		PaddingOn = 1,
		PaddingOff = 2
	}
	public enum Mp3WaveFormatId : ushort
	{
		Unknown,
		Mpeg,
		ConstantFrameSize
	}
	[StructLayout(LayoutKind.Sequential, Pack = 2)]
	internal class OggWaveFormat : WaveFormat
	{
		public uint dwVorbisACMVersion;

		public uint dwLibVorbisVersion;
	}
	[StructLayout(LayoutKind.Sequential, Pack = 2)]
	public class TrueSpeechWaveFormat : WaveFormat
	{
		[MarshalAs(UnmanagedType.ByValArray, SizeConst = 16)]
		private short[] unknown;

		public TrueSpeechWaveFormat()
		{
			waveFormatTag = WaveFormatEncoding.DspGroupTrueSpeech;
			channels = 1;
			averageBytesPerSecond = 1067;
			bitsPerSample = 1;
			blockAlign = 32;
			sampleRate = 8000;
			extraSize = 32;
			unknown = new short[16];
			unknown[0] = 1;
			unknown[1] = 240;
		}

		public override void Serialize(BinaryWriter writer)
		{
			base.Serialize(writer);
			short[] array = unknown;
			foreach (short value in array)
			{
				writer.Write(value);
			}
		}
	}
	[StructLayout(LayoutKind.Sequential, Pack = 2)]
	public class WaveFormat
	{
		protected WaveFormatEncoding waveFormatTag;

		protected short channels;

		protected int sampleRate;

		protected int averageBytesPerSecond;

		protected short blockAlign;

		protected short bitsPerSample;

		protected short extraSize;

		public WaveFormatEncoding Encoding => waveFormatTag;

		public int Channels => channels;

		public int SampleRate => sampleRate;

		public int AverageBytesPerSecond => averageBytesPerSecond;

		public virtual int BlockAlign => blockAlign;

		public int BitsPerSample => bitsPerSample;

		public int ExtraSize => extraSize;

		public WaveFormat()
			: this(44100, 16, 2)
		{
		}

		public WaveFormat(int sampleRate, int channels)
			: this(sampleRate, 16, channels)
		{
		}

		public int ConvertLatencyToByteSize(int milliseconds)
		{
			int num = (int)((double)AverageBytesPerSecond / 1000.0 * (double)milliseconds);
			if (num % BlockAlign != 0)
			{
				num = num + BlockAlign - num % BlockAlign;
			}
			return num;
		}

		public static WaveFormat CreateCustomFormat(WaveFormatEncoding tag, int sampleRate, int channels, int averageBytesPerSecond, int blockAlign, int bitsPerSample)
		{
			return new WaveFormat
			{
				waveFormatTag = tag,
				channels = (short)channels,
				sampleRate = sampleRate,
				averageBytesPerSecond = averageBytesPerSecond,
				blockAlign = (short)blockAlign,
				bitsPerSample = (short)bitsPerSample,
				extraSize = 0
			};
		}

		public static WaveFormat CreateALawFormat(int sampleRate, int channels)
		{
			return CreateCustomFormat(WaveFormatEncoding.ALaw, sampleRate, channels, sampleRate * channels, channels, 8);
		}

		public static WaveFormat CreateMuLawFormat(int sampleRate, int channels)
		{
			return CreateCustomFormat(WaveFormatEncoding.MuLaw, sampleRate, channels, sampleRate * channels, channels, 8);
		}

		public WaveFormat(int rate, int bits, int channels)
		{
			if (channels < 1)
			{
				throw new ArgumentOutOfRangeException("channels", "Channels must be 1 or greater");
			}
			waveFormatTag = WaveFormatEncoding.Pcm;
			this.channels = (short)channels;
			sampleRate = rate;
			bitsPerSample = (short)bits;
			extraSize = 0;
			blockAlign = (short)(channels * (bits / 8));
			averageBytesPerSecond = sampleRate * blockAlign;
		}

		public static WaveFormat CreateIeeeFloatWaveFormat(int sampleRate, int channels)
		{
			WaveFormat waveFormat = new WaveFormat();
			waveFormat.waveFormatTag = WaveFormatEncoding.IeeeFloat;
			waveFormat.channels = (short)channels;
			waveFormat.bitsPerSample = 32;
			waveFormat.sampleRate = sampleRate;
			waveFormat.blockAlign = (short)(4 * channels);
			waveFormat.averageBytesPerSecond = sampleRate * waveFormat.blockAlign;
			waveFormat.extraSize = 0;
			return waveFormat;
		}

		public static WaveFormat MarshalFromPtr(IntPtr pointer)
		{
			WaveFormat waveFormat = Marshal.PtrToStructure<WaveFormat>(pointer);
			switch (waveFormat.Encoding)
			{
			case WaveFormatEncoding.Pcm:
				waveFormat.extraSize = 0;
				break;
			case WaveFormatEncoding.Extensible:
				waveFormat = Marshal.PtrToStructure<WaveFormatExtensible>(pointer);
				break;
			case WaveFormatEncoding.Adpcm:
				waveFormat = Marshal.PtrToStructure<AdpcmWaveFormat>(pointer);
				break;
			case WaveFormatEncoding.Gsm610:
				waveFormat = Marshal.PtrToStructure<Gsm610WaveFormat>(pointer);
				break;
			default:
				if (waveFormat.ExtraSize > 0)
				{
					waveFormat = Marshal.PtrToStructure<WaveFormatExtraData>(pointer);
				}
				break;
			}
			return waveFormat;
		}

		public static IntPtr MarshalToPtr(WaveFormat format)
		{
			IntPtr intPtr = Marshal.AllocHGlobal(Marshal.SizeOf(format));
			Marshal.StructureToPtr(format, intPtr, fDeleteOld: false);
			return intPtr;
		}

		public static WaveFormat FromFormatChunk(BinaryReader br, int formatChunkLength)
		{
			WaveFormatExtraData waveFormatExtraData = new WaveFormatExtraData();
			waveFormatExtraData.ReadWaveFormat(br, formatChunkLength);
			waveFormatExtraData.ReadExtraData(br);
			return waveFormatExtraData;
		}

		private void ReadWaveFormat(BinaryReader br, int formatChunkLength)
		{
			if (formatChunkLength < 16)
			{
				throw new InvalidDataException("Invalid WaveFormat Structure");
			}
			waveFormatTag = (WaveFormatEncoding)br.ReadUInt16();
			channels = br.ReadInt16();
			sampleRate = br.ReadInt32();
			averageBytesPerSecond = br.ReadInt32();
			blockAlign = br.ReadInt16();
			bitsPerSample = br.ReadInt16();
			if (formatChunkLength > 16)
			{
				extraSize = br.ReadInt16();
				if (extraSize != formatChunkLength - 18)
				{
					extraSize = (short)(formatChunkLength - 18);
				}
			}
		}

		public WaveFormat(BinaryReader br)
		{
			int formatChunkLength = br.ReadInt32();
			ReadWaveFormat(br, formatChunkLength);
		}

		public override string ToString()
		{
			switch (waveFormatTag)
			{
			case WaveFormatEncoding.Pcm:
			case WaveFormatEncoding.Extensible:
				return $"{bitsPerSample} bit PCM: {sampleRate}Hz {channels} channels";
			case WaveFormatEncoding.IeeeFloat:
				return $"{bitsPerSample} bit IEEFloat: {sampleRate}Hz {channels} channels";
			default:
				return waveFormatTag.ToString();
			}
		}

		public override bool Equals(object obj)
		{
			if (obj is WaveFormat waveFormat)
			{
				if (waveFormatTag == waveFormat.waveFormatTag && channels == waveFormat.channels && sampleRate == waveFormat.sampleRate && averageBytesPerSecond == waveFormat.averageBytesPerSecond && blockAlign == waveFormat.blockAlign)
				{
					return bitsPerSample == waveFormat.bitsPerSample;
				}
				return false;
			}
			return false;
		}

		public override int GetHashCode()
		{
			return (int)waveFormatTag ^ (int)channels ^ sampleRate ^ averageBytesPerSecond ^ blockAlign ^ bitsPerSample;
		}

		public virtual void Serialize(BinaryWriter writer)
		{
			writer.Write(18 + extraSize);
			writer.Write((short)Encoding);
			writer.Write((short)Channels);
			writer.Write(SampleRate);
			writer.Write(AverageBytesPerSecond);
			writer.Write((short)BlockAlign);
			writer.Write((short)BitsPerSample);
			writer.Write(extraSize);
		}
	}
	public sealed class WaveFormatCustomMarshaler : ICustomMarshaler
	{
		private static WaveFormatCustomMarshaler marshaler;

		public static ICustomMarshaler GetInstance(string cookie)
		{
			if (marshaler == null)
			{
				marshaler = new WaveFormatCustomMarshaler();
			}
			return marshaler;
		}

		public void CleanUpManagedData(object ManagedObj)
		{
		}

		public void CleanUpNativeData(IntPtr pNativeData)
		{
			Marshal.FreeHGlobal(pNativeData);
		}

		public int GetNativeDataSize()
		{
			throw new NotImplementedException();
		}

		public IntPtr MarshalManagedToNative(object ManagedObj)
		{
			return WaveFormat.MarshalToPtr((WaveFormat)ManagedObj);
		}

		public object MarshalNativeToManaged(IntPtr pNativeData)
		{
			return WaveFormat.MarshalFromPtr(pNativeData);
		}
	}
	public enum WaveFormatEncoding : ushort
	{
		Unknown = 0,
		Pcm = 1,
		Adpcm = 2,
		IeeeFloat = 3,
		Vselp = 4,
		IbmCvsd = 5,
		ALaw = 6,
		MuLaw = 7,
		Dts = 8,
		Drm = 9,
		WmaVoice9 = 10,
		OkiAdpcm = 16,
		DviAdpcm = 17,
		ImaAdpcm = 17,
		MediaspaceAdpcm = 18,
		SierraAdpcm = 19,
		G723Adpcm = 20,
		DigiStd = 21,
		DigiFix = 22,
		DialogicOkiAdpcm = 23,
		MediaVisionAdpcm = 24,
		CUCodec = 25,
		YamahaAdpcm = 32,
		SonarC = 33,
		DspGroupTrueSpeech = 34,
		EchoSpeechCorporation1 = 35,
		AudioFileAf36 = 36,
		Aptx = 37,
		AudioFileAf10 = 38,
		Prosody1612 = 39,
		Lrc = 40,
		DolbyAc2 = 48,
		Gsm610 = 49,
		MsnAudio = 50,
		AntexAdpcme = 51,
		ControlResVqlpc = 52,
		DigiReal = 53,
		DigiAdpcm = 54,
		ControlResCr10 = 55,
		WAVE_FORMAT_NMS_VBXADPCM = 56,
		WAVE_FORMAT_CS_IMAADPCM = 57,
		WAVE_FORMAT_ECHOSC3 = 58,
		WAVE_FORMAT_ROCKWELL_ADPCM = 59,
		WAVE_FORMAT_ROCKWELL_DIGITALK = 60,
		WAVE_FORMAT_XEBEC = 61,
		WAVE_FORMAT_G721_ADPCM = 64,
		WAVE_FORMAT_G728_CELP = 65,
		WAVE_FORMAT_MSG723 = 66,
		Mpeg = 80,
		WAVE_FORMAT_RT24 = 82,
		WAVE_FORMAT_PAC = 83,
		MpegLayer3 = 85,
		WAVE_FORMAT_LUCENT_G723 = 89,
		WAVE_FORMAT_CIRRUS = 96,
		WAVE_FORMAT_ESPCM = 97,
		WAVE_FORMAT_VOXWARE = 98,
		WAVE_FORMAT_CANOPUS_ATRAC = 99,
		WAVE_FORMAT_G726_ADPCM = 100,
		WAVE_FORMAT_G722_ADPCM = 101,
		WAVE_FORMAT_DSAT_DISPLAY = 103,
		WAVE_FORMAT_VOXWARE_BYTE_ALIGNED = 105,
		WAVE_FORMAT_VOXWARE_AC8 = 112,
		WAVE_FORMAT_VOXWARE_AC10 = 113,
		WAVE_FORMAT_VOXWARE_AC16 = 114,
		WAVE_FORMAT_VOXWARE_AC20 = 115,
		WAVE_FORMAT_VOXWARE_RT24 = 116,
		WAVE_FORMAT_VOXWARE_RT29 = 117,
		WAVE_FORMAT_VOXWARE_RT29HW = 118,
		WAVE_FORMAT_VOXWARE_VR12 = 119,
		WAVE_FORMAT_VOXWARE_VR18 = 120,
		WAVE_FORMAT_VOXWARE_TQ40 = 121,
		WAVE_FORMAT_SOFTSOUND = 128,
		WAVE_FORMAT_VOXWARE_TQ60 = 129,
		WAVE_FORMAT_MSRT24 = 130,
		WAVE_FORMAT_G729A = 131,
		WAVE_FORMAT_MVI_MVI2 = 132,
		WAVE_FORMAT_DF_G726 = 133,
		WAVE_FORMAT_DF_GSM610 = 134,
		WAVE_FORMAT_ISIAUDIO = 136,
		WAVE_FORMAT_ONLIVE = 137,
		WAVE_FORMAT_SBC24 = 145,
		WAVE_FORMAT_DOLBY_AC3_SPDIF = 146,
		WAVE_FORMAT_MEDIASONIC_G723 = 147,
		WAVE_FORMAT_PROSODY_8KBPS = 148,
		WAVE_FORMAT_ZYXEL_ADPCM = 151,
		WAVE_FORMAT_PHILIPS_LPCBB = 152,
		WAVE_FORMAT_PACKED = 153,
		WAVE_FORMAT_MALDEN_PHONYTALK = 160,
		Gsm = 161,
		G729 = 162,
		G723 = 163,
		Acelp = 164,
		RawAac = 255,
		WAVE_FORMAT_RHETOREX_ADPCM = 256,
		WAVE_FORMAT_IRAT = 257,
		WAVE_FORMAT_VIVO_G723 = 273,
		WAVE_FORMAT_VIVO_SIREN = 274,
		WAVE_FORMAT_DIGITAL_G723 = 291,
		WAVE_FORMAT_SANYO_LD_ADPCM = 293,
		WAVE_FORMAT_SIPROLAB_ACEPLNET = 304,
		WAVE_FORMAT_SIPROLAB_ACELP4800 = 305,
		WAVE_FORMAT_SIPROLAB_ACELP8V3 = 306,
		WAVE_FORMAT_SIPROLAB_G729 = 307,
		WAVE_FORMAT_SIPROLAB_G729A = 308,
		WAVE_FORMAT_SIPROLAB_KELVIN = 309,
		WAVE_FORMAT_G726ADPCM = 320,
		WAVE_FORMAT_QUALCOMM_PUREVOICE = 336,
		WAVE_FORMAT_QUALCOMM_HALFRATE = 337,
		WAVE_FORMAT_TUBGSM = 341,
		WAVE_FORMAT_MSAUDIO1 = 352,
		WindowsMediaAudio = 353,
		WindowsMediaAudioProfessional = 354,
		WindowsMediaAudioLosseless = 355,
		WindowsMediaAudioSpdif = 356,
		WAVE_FORMAT_UNISYS_NAP_ADPCM = 368,
		WAVE_FORMAT_UNISYS_NAP_ULAW = 369,
		WAVE_FORMAT_UNISYS_NAP_ALAW = 370,
		WAVE_FORMAT_UNISYS_NAP_16K = 371,
		WAVE_FORMAT_CREATIVE_ADPCM = 512,
		WAVE_FORMAT_CREATIVE_FASTSPEECH8 = 514,
		WAVE_FORMAT_CREATIVE_FASTSPEECH10 = 515,
		WAVE_FORMAT_UHER_ADPCM = 528,
		WAVE_FORMAT_QUARTERDECK = 544,
		WAVE_FORMAT_ILINK_VC = 560,
		WAVE_FORMAT_RAW_SPORT = 576,
		WAVE_FORMAT_ESST_AC3 = 577,
		WAVE_FORMAT_IPI_HSX = 592,
		WAVE_FORMAT_IPI_RPELP = 593,
		WAVE_FORMAT_CS2 = 608,
		WAVE_FORMAT_SONY_SCX = 624,
		WAVE_FORMAT_FM_TOWNS_SND = 768,
		WAVE_FORMAT_BTV_DIGITAL = 1024,
		WAVE_FORMAT_QDESIGN_MUSIC = 1104,
		WAVE_FORMAT_VME_VMPCM = 1664,
		WAVE_FORMAT_TPC = 1665,
		WAVE_FORMAT_OLIGSM = 4096,
		WAVE_FORMAT_OLIADPCM = 4097,
		WAVE_FORMAT_OLICELP = 4098,
		WAVE_FORMAT_OLISBC = 4099,
		WAVE_FORMAT_OLIOPR = 4100,
		WAVE_FORMAT_LH_CODEC = 4352,
		WAVE_FORMAT_NORRIS = 5120,
		WAVE_FORMAT_SOUNDSPACE_MUSICOMPRESS = 5376,
		MPEG_ADTS_AAC = 5632,
		MPEG_RAW_AAC = 5633,
		MPEG_LOAS = 5634,
		NOKIA_MPEG_ADTS_AAC = 5640,
		NOKIA_MPEG_RAW_AAC = 5641,
		VODAFONE_MPEG_ADTS_AAC = 5642,
		VODAFONE_MPEG_RAW_AAC = 5643,
		MPEG_HEAAC = 5648,
		WAVE_FORMAT_DVM = 8192,
		Vorbis1 = 26447,
		Vorbis2 = 26448,
		Vorbis3 = 26449,
		Vorbis1P = 26479,
		Vorbis2P = 26480,
		Vorbis3P = 26481,
		Extensible = 65534,
		WAVE_FORMAT_DEVELOPMENT = ushort.MaxValue
	}
	[StructLayout(LayoutKind.Sequential, Pack = 2)]
	public class WaveFormatExtensible : WaveFormat
	{
		private short wValidBitsPerSample;

		private int dwChannelMask;

		private Guid subFormat;

		public Guid SubFormat => subFormat;

		private WaveFormatExtensible()
		{
		}

		public WaveFormatExtensible(int rate, int bits, int channels)
			: base(rate, bits, channels)
		{
			waveFormatTag = WaveFormatEncoding.Extensible;
			extraSize = 22;
			wValidBitsPerSample = (short)bits;
			for (int i = 0; i < channels; i++)
			{
				dwChannelMask |= 1 << i;
			}
			if (bits == 32)
			{
				subFormat = AudioMediaSubtypes.MEDIASUBTYPE_IEEE_FLOAT;
			}
			else
			{
				subFormat = AudioMediaSubtypes.MEDIASUBTYPE_PCM;
			}
		}

		public WaveFormat ToStandardWaveFormat()
		{
			if (subFormat == AudioMediaSubtypes.MEDIASUBTYPE_IEEE_FLOAT && bitsPerSample == 32)
			{
				return WaveFormat.CreateIeeeFloatWaveFormat(sampleRate, channels);
			}
			if (subFormat == AudioMediaSubtypes.MEDIASUBTYPE_PCM)
			{
				return new WaveFormat(sampleRate, bitsPerSample, channels);
			}
			return this;
		}

		public override void Serialize(BinaryWriter writer)
		{
			base.Serialize(writer);
			writer.Write(wValidBitsPerSample);
			writer.Write(dwChannelMask);
			byte[] array = subFormat.ToByteArray();
			writer.Write(array, 0, array.Length);
		}

		public override string ToString()
		{
			return "WAVE_FORMAT_EXTENSIBLE " + AudioMediaSubtypes.GetAudioSubtypeName(subFormat) + " " + $"{base.SampleRate}Hz {base.Channels} channels {base.BitsPerSample} bit";
		}
	}
	[StructLayout(LayoutKind.Sequential, Pack = 2)]
	public class WaveFormatExtraData : WaveFormat
	{
		[MarshalAs(UnmanagedType.ByValArray, SizeConst = 100)]
		private byte[] extraData = new byte[100];

		public byte[] ExtraData => extraData;

		internal WaveFormatExtraData()
		{
		}

		public WaveFormatExtraData(BinaryReader reader)
			: base(reader)
		{
			ReadExtraData(reader);
		}

		internal void ReadExtraData(BinaryReader reader)
		{
			if (extraSize > 0)
			{
				reader.Read(extraData, 0, extraSize);
			}
		}

		public override void Serialize(BinaryWriter writer)
		{
			base.Serialize(writer);
			if (extraSize > 0)
			{
				writer.Write(extraData, 0, extraSize);
			}
		}
	}
	public interface IWaveIn : IDisposable
	{
		WaveFormat WaveFormat { get; set; }

		event EventHandler<WaveInEventArgs> DataAvailable;

		event EventHandler<StoppedEventArgs> RecordingStopped;

		void StartRecording();

		void StopRecording();
	}
	public class WaveInEventArgs : EventArgs
	{
		private byte[] buffer;

		private int bytes;

		public byte[] Buffer => buffer;

		public int BytesRecorded => bytes;

		public WaveInEventArgs(byte[] buffer, int bytes)
		{
			this.buffer = buffer;
			this.bytes = bytes;
		}
	}
	public class AiffFileWriter : Stream
	{
		private Stream outStream;

		private BinaryWriter writer;

		private long dataSizePos;

		private long commSampleCountPos;

		private long dataChunkSize = 8L;

		private WaveFormat format;

		private string filename;

		private byte[] value24 = new byte[3];

		public string Filename => filename;

		public override long Length => dataChunkSize;

		public WaveFormat WaveFormat => format;

		public override bool CanRead => false;

		public override bool CanWrite => true;

		public override bool CanSeek => false;

		public override long Position
		{
			get
			{
				return dataChunkSize;
			}
			set
			{
				throw new InvalidOperationException("Repositioning an AiffFileWriter is not supported");
			}
		}

		public static void CreateAiffFile(string filename, WaveStream sourceProvider)
		{
			using AiffFileWriter aiffFileWriter = new AiffFileWriter(filename, sourceProvider.WaveFormat);
			byte[] array = new byte[16384];
			while (sourceProvider.Position < sourceProvider.Length)
			{
				int count = Math.Min((int)(sourceProvider.Length - sourceProvider.Position), array.Length);
				int num = sourceProvider.Read(array, 0, count);
				if (num == 0)
				{
					break;
				}
				aiffFileWriter.Write(array, 0, num);
			}
		}

		public AiffFileWriter(Stream outStream, WaveFormat format)
		{
			this.outStream = outStream;
			this.format = format;
			writer = new BinaryWriter(outStream, Encoding.UTF8);
			writer.Write(Encoding.UTF8.GetBytes("FORM"));
			writer.Write(0);
			writer.Write(Encoding.UTF8.GetBytes("AIFF"));
			CreateCommChunk();
			WriteSsndChunkHeader();
		}

		public AiffFileWriter(string filename, WaveFormat format)
			: this(new FileStream(filename, FileMode.Create, FileAccess.Write, FileShare.Read), format)
		{
			this.filename = filename;
		}

		private void WriteSsndChunkHeader()
		{
			writer.Write(Encoding.UTF8.GetBytes("SSND"));
			dataSizePos = outStream.Position;
			writer.Write(0);
			writer.Write(0);
			writer.Write(SwapEndian(format.BlockAlign));
		}

		private byte[] SwapEndian(short n)
		{
			return new byte[2]
			{
				(byte)(n >> 8),
				(byte)((uint)n & 0xFFu)
			};
		}

		private byte[] SwapEndian(int n)
		{
			return new byte[4]
			{
				(byte)((uint)(n >> 24) & 0xFFu),
				(byte)((uint)(n >> 16) & 0xFFu),
				(byte)((uint)(n >> 8) & 0xFFu),
				(byte)((uint)n & 0xFFu)
			};
		}

		private void CreateCommChunk()
		{
			writer.Write(Encoding.UTF8.GetBytes("COMM"));
			writer.Write(SwapEndian(18));
			writer.Write(SwapEndian((short)format.Channels));
			commSampleCountPos = outStream.Position;
			writer.Write(0);
			writer.Write(SwapEndian((short)format.BitsPerSample));
			writer.Write(IEEE.ConvertToIeeeExtended(format.SampleRate));
		}

		public override int Read(byte[] buffer, int offset, int count)
		{
			throw new InvalidOperationException("Cannot read from an AiffFileWriter");
		}

		public override long Seek(long offset, SeekOrigin origin)
		{
			throw new InvalidOperationException("Cannot seek within an AiffFileWriter");
		}

		public override void SetLength(long value)
		{
			throw new InvalidOperationException("Cannot set length of an AiffFileWriter");
		}

		public override void Write(byte[] data, int offset, int count)
		{
			byte[] array = new byte[data.Length];
			int num = format.BitsPerSample / 8;
			for (int i = 0; i < data.Length; i++)
			{
				int num2 = (int)Math.Floor((double)i / (double)num) * num + (num - i % num - 1);
				array[i] = data[num2];
			}
			outStream.Write(array, offset, count);
			dataChunkSize += count;
		}

		public void WriteSample(float sample)
		{
			if (WaveFormat.BitsPerSample == 16)
			{
				writer.Write(SwapEndian((short)(32767f * sample)));
				dataChunkSize += 2L;
			}
			else if (WaveFormat.BitsPerSample == 24)
			{
				byte[] bytes = BitConverter.GetBytes((int)(2.1474836E+09f * sample));
				value24[2] = bytes[1];
				value24[1] = bytes[2];
				value24[0] = bytes[3];
				writer.Write(value24);
				dataChunkSize += 3L;
			}
			else
			{
				if (WaveFormat.BitsPerSample != 32 || WaveFormat.Encoding != WaveFormatEncoding.Extensible)
				{
					throw new InvalidOperationException("Only 16, 24 or 32 bit PCM or IEEE float audio data supported");
				}
				writer.Write(SwapEndian(65535 * (int)sample));
				dataChunkSize += 4L;
			}
		}

		public void WriteSamples(float[] samples, int offset, int count)
		{
			for (int i = 0; i < count; i++)
			{
				WriteSample(samples[offset + i]);
			}
		}

		public void WriteSamples(short[] samples, int offset, int count)
		{
			if (WaveFormat.BitsPerSample == 16)
			{
				for (int i = 0; i < count; i++)
				{
					writer.Write(SwapEndian(samples[i + offset]));
				}
				dataChunkSize += count * 2;
			}
			else if (WaveFormat.BitsPerSample == 24)
			{
				for (int j = 0; j < count; j++)
				{
					byte[] bytes = BitConverter.GetBytes(65535 * samples[j + offset]);
					value24[2] = bytes[1];
					value24[1] = bytes[2];
					value24[0] = bytes[3];
					writer.Write(value24);
				}
				dataChunkSize += count * 3;
			}
			else
			{
				if (WaveFormat.BitsPerSample != 32 || WaveFormat.Encoding != WaveFormatEncoding.Extensible)
				{
					throw new InvalidOperationException("Only 16, 24 or 32 bit PCM audio data supported");
				}
				for (int k = 0; k < count; k++)
				{
					writer.Write(SwapEndian(65535 * samples[k + offset]));
				}
				dataChunkSize += count * 4;
			}
		}

		public override void Flush()
		{
			writer.Flush();
		}

		protected override void Dispose(bool disposing)
		{
			if (disposing && outStream != null)
			{
				try
				{
					UpdateHeader(writer);
				}
				finally
				{
					outStream.Dispose();
					outStream = null;
				}
			}
		}

		protected virtual void UpdateHeader(BinaryWriter writer)
		{
			Flush();
			writer.Seek(4, SeekOrigin.Begin);
			writer.Write(SwapEndian((int)(outStream.Length - 8)));
			UpdateCommChunk(writer);
			UpdateSsndChunk(writer);
		}

		private void UpdateCommChunk(BinaryWriter writer)
		{
			writer.Seek((int)commSampleCountPos, SeekOrigin.Begin);
			writer.Write(SwapEndian((int)(dataChunkSize * 8 / format.BitsPerSample / format.Channels)));
		}

		private void UpdateSsndChunk(BinaryWriter writer)
		{
			writer.Seek((int)dataSizePos, SeekOrigin.Begin);
			writer.Write(SwapEndian((int)dataChunkSize));
		}

		~AiffFileWriter()
		{
			Dispose(disposing: false);
		}
	}
	public class BextChunkInfo
	{
		public string Description { get; set; }

		public string Originator { get; set; }

		public string OriginatorReference { get; set; }

		public DateTime OriginationDateTime { get; set; }

		public string OriginationDate => OriginationDateTime.ToString("yyyy-MM-dd");

		public string OriginationTime => OriginationDateTime.ToString("HH:mm:ss");

		public long TimeReference { get; set; }

		public ushort Version => 1;

		public string UniqueMaterialIdentifier { get; set; }

		public byte[] Reserved { get; }

		public string CodingHistory { get; set; }

		public BextChunkInfo()
		{
			Reserved = new byte[190];
		}
	}
	public class BwfWriter : IDisposable
	{
		private readonly WaveFormat format;

		private readonly BinaryWriter writer;

		private readonly long dataChunkSizePosition;

		private long dataLength;

		private bool isDisposed;

		public BwfWriter(string filename, WaveFormat format, BextChunkInfo bextChunkInfo)
		{
			this.format = format;
			writer = new BinaryWriter(File.OpenWrite(filename));
			writer.Write(Encoding.UTF8.GetBytes("RIFF"));
			writer.Write(0);
			writer.Write(Encoding.UTF8.GetBytes("WAVE"));
			writer.Write(Encoding.UTF8.GetBytes("JUNK"));
			writer.Write(28);
			writer.Write(0L);
			writer.Write(0L);
			writer.Write(0L);
			writer.Write(0);
			writer.Write(Encoding.UTF8.GetBytes("bext"));
			byte[] bytes = Encoding.ASCII.GetBytes(bextChunkInfo.CodingHistory ?? "");
			int num = 602 + bytes.Length;
			if (num % 2 != 0)
			{
				num++;
			}
			writer.Write(num);
			_ = writer.BaseStream.Position;
			writer.Write(GetAsBytes(bextChunkInfo.Description, 256));
			writer.Write(GetAsBytes(bextChunkInfo.Originator, 32));
			writer.Write(GetAsBytes(bextChunkInfo.OriginatorReference, 32));
			writer.Write(GetAsBytes(bextChunkInfo.OriginationDate, 10));
			writer.Write(GetAsBytes(bextChunkInfo.OriginationTime, 8));
			writer.Write(bextChunkInfo.TimeReference);
			writer.Write(bextChunkInfo.Version);
			writer.Write(GetAsBytes(bextChunkInfo.UniqueMaterialIdentifier, 64));
			writer.Write(bextChunkInfo.Reserved);
			writer.Write(bytes);
			if (bytes.Length % 2 != 0)
			{
				writer.Write((byte)0);
			}
			writer.Write(Encoding.UTF8.GetBytes("fmt "));
			format.Serialize(writer);
			writer.Write(Encoding.UTF8.GetBytes("data"));
			dataChunkSizePosition = writer.BaseStream.Position;
			writer.Write(-1);
		}

		public void Write(byte[] buffer, int offset, int count)
		{
			if (isDisposed)
			{
				throw new ObjectDisposedException("This BWF Writer already disposed");
			}
			writer.Write(buffer, offset, count);
			dataLength += count;
		}

		public void Flush()
		{
			if (isDisposed)
			{
				throw new ObjectDisposedException("This BWF Writer already disposed");
			}
			writer.Flush();
			FixUpChunkSizes(restorePosition: true);
		}

		private void FixUpChunkSizes(bool restorePosition)
		{
			long position = writer.BaseStream.Position;
			bool num = dataLength > int.MaxValue;
			long num2 = writer.BaseStream.Length - 8;
			if (num)
			{
				int num3 = format.BitsPerSample / 8 * format.Channels;
				writer.BaseStream.Position = 0L;
				writer.Write(Encoding.UTF8.GetBytes("RF64"));
				writer.Write(-1);
				writer.BaseStream.Position += 4L;
				writer.Write(Encoding.UTF8.GetBytes("ds64"));
				writer.BaseStream.Position += 4L;
				writer.Write(num2);
				writer.Write(dataLength);
				writer.Write(dataLength / num3);
			}
			else
			{
				writer.BaseStream.Position = 4L;
				writer.Write((uint)num2);
				writer.BaseStream.Position = dataChunkSizePosition;
				writer.Write((uint)dataLength);
			}
			if (restorePosition)
			{
				writer.BaseStream.Position = position;
			}
		}

		public void Dispose()
		{
			if (!isDisposed)
			{
				FixUpChunkSizes(restorePosition: false);
				writer.Dispose();
				isDisposed = true;
			}
		}

		private static byte[] GetAsBytes(string message, int byteSize)
		{
			byte[] array = new byte[byteSize];
			byte[] bytes = Encoding.ASCII.GetBytes(message ?? "");
			Array.Copy(bytes, array, Math.Min(bytes.Length, byteSize));
			return array;
		}
	}
	public class CueWaveFileWriter : WaveFileWriter
	{
		private CueList cues;

		public CueWaveFileWriter(string fileName, WaveFormat waveFormat)
			: base(fileName, waveFormat)
		{
		}

		public void AddCue(int position, string label)
		{
			if (cues == null)
			{
				cues = new CueList();
			}
			cues.Add(new Cue(position, label));
		}

		private void WriteCues(BinaryWriter w)
		{
			if (cues != null)
			{
				int count = cues.GetRiffChunks().Length;
				w.Seek(0, SeekOrigin.End);
				if (w.BaseStream.Length % 2 == 1)
				{
					w.Write((byte)0);
				}
				w.Write(cues.GetRiffChunks(), 0, count);
				w.Seek(4, SeekOrigin.Begin);
				w.Write((int)(w.BaseStream.Length - 8));
			}
		}

		protected override void UpdateHeader(BinaryWriter writer)
		{
			base.UpdateHeader(writer);
			WriteCues(writer);
		}
	}
	public class DirectSoundOut : IWavePlayer, IDisposable
	{
		[StructLayout(LayoutKind.Sequential, Pack = 2)]
		internal class BufferDescription
		{
			public int dwSize;

			[MarshalAs(UnmanagedType.U4)]
			public DirectSoundBufferCaps dwFlags;

			public uint dwBufferBytes;

			public int dwReserved;

			public IntPtr lpwfxFormat;

			public Guid guidAlgo;
		}

		[StructLayout(LayoutKind.Sequential, Pack = 2)]
		internal class BufferCaps
		{
			public int dwSize;

			public int dwFlags;

			public int dwBufferBytes;

			public int dwUnlockTransferRate;

			public int dwPlayCpuOverhead;
		}

		internal enum DirectSoundCooperativeLevel : uint
		{
			DSSCL_NORMAL = 1u,
			DSSCL_PRIORITY,
			DSSCL_EXCLUSIVE,
			DSSCL_WRITEPRIMARY
		}

		[Flags]
		internal enum DirectSoundPlayFlags : uint
		{
			DSBPLAY_LOOPING = 1u,
			DSBPLAY_LOCHARDWARE = 2u,
			DSBPLAY_LOCSOFTWARE = 4u,
			DSBPLAY_TERMINATEBY_TIME = 8u,
			DSBPLAY_TERMINATEBY_DISTANCE = 0x10u,
			DSBPLAY_TERMINATEBY_PRIORITY = 0x20u
		}

		internal enum DirectSoundBufferLockFlag : uint
		{
			None,
			FromWriteCursor,
			EntireBuffer
		}

		[Flags]
		internal enum DirectSoundBufferStatus : uint
		{
			DSBSTATUS_PLAYING = 1u,
			DSBSTATUS_BUFFERLOST = 2u,
			DSBSTATUS_LOOPING = 4u,
			DSBSTATUS_LOCHARDWARE = 8u,
			DSBSTATUS_LOCSOFTWARE = 0x10u,
			DSBSTATUS_TERMINATED = 0x20u
		}

		[Flags]
		internal enum DirectSoundBufferCaps : uint
		{
			DSBCAPS_PRIMARYBUFFER = 1u,
			DSBCAPS_STATIC = 2u,
			DSBCAPS_LOCHARDWARE = 4u,
			DSBCAPS_LOCSOFTWARE = 8u,
			DSBCAPS_CTRL3D = 0x10u,
			DSBCAPS_CTRLFREQUENCY = 0x20u,
			DSBCAPS_CTRLPAN = 0x40u,
			DSBCAPS_CTRLVOLUME = 0x80u,
			DSBCAPS_CTRLPOSITIONNOTIFY = 0x100u,
			DSBCAPS_CTRLFX = 0x200u,
			DSBCAPS_STICKYFOCUS = 0x4000u,
			DSBCAPS_GLOBALFOCUS = 0x8000u,
			DSBCAPS_GETCURRENTPOSITION2 = 0x10000u,
			DSBCAPS_MUTE3DATMAXDISTANCE = 0x20000u,
			DSBCAPS_LOCDEFER = 0x40000u
		}

		internal struct DirectSoundBufferPositionNotify
		{
			public uint dwOffset;

			public IntPtr hEventNotify;
		}

		[ComImport]
		[Guid("279AFA83-4981-11CE-A521-0020AF0BE560")]
		[SuppressUnmanagedCodeSecurity]
		[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
		internal interface IDirectSound
		{
			void CreateSoundBuffer([In] BufferDescription desc, [MarshalAs(UnmanagedType.Interface)] out object dsDSoundBuffer, IntPtr pUnkOuter);

			void GetCaps(IntPtr caps);

			void DuplicateSoundBuffer([In][MarshalAs(UnmanagedType.Interface)] IDirectSoundBuffer bufferOriginal, [In][MarshalAs(UnmanagedType.Interface)] IDirectSoundBuffer bufferDuplicate);

			void SetCooperativeLevel(IntPtr HWND, [In][MarshalAs(UnmanagedType.U4)] DirectSoundCooperativeLevel dwLevel);

			void Compact();

			void GetSpeakerConfig(IntPtr pdwSpeakerConfig);

			void SetSpeakerConfig(uint pdwSpeakerConfig);

			void Initialize([In][MarshalAs(UnmanagedType.LPStruct)] Guid guid);
		}

		[ComImport]
		[Guid("279AFA85-4981-11CE-A521-0020AF0BE560")]
		[SuppressUnmanagedCodeSecurity]
		[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
		internal interface IDirectSoundBuffer
		{
			void GetCaps([MarshalAs(UnmanagedType.LPStruct)] BufferCaps pBufferCaps);

			void GetCurrentPosition(out uint currentPlayCursor, out uint currentWriteCursor);

			void GetFormat();

			[return: MarshalAs(UnmanagedType.I4)]
			int GetVolume();

			void GetPan(out uint pan);

			[return: MarshalAs(UnmanagedType.I4)]
			int GetFrequency();

			[return: MarshalAs(UnmanagedType.U4)]
			DirectSoundBufferStatus GetStatus();

			void Initialize([In][MarshalAs(UnmanagedType.Interface)] IDirectSound directSound, [In] BufferDescription desc);

			void Lock(int dwOffset, uint dwBytes, out IntPtr audioPtr1, out int audioBytes1, out IntPtr audioPtr2, out int audioBytes2, [MarshalAs(UnmanagedType.U4)] DirectSoundBufferLockFlag dwFlags);

			void Play(uint dwReserved1, uint dwPriority, [In][MarshalAs(UnmanagedType.U4)] DirectSoundPlayFlags dwFlags);

			void SetCurrentPosition(uint dwNewPosition);

			void SetFormat([In] WaveFormat pcfxFormat);

			void SetVolume(int volume);

			void SetPan(uint pan);

			void SetFrequency(uint frequency);

			void Stop();

			void Unlock(IntPtr pvAudioPtr1, int dwAudioBytes1, IntPtr pvAudioPtr2, int dwAudioBytes2);

			void Restore();
		}

		[ComImport]
		[Guid("b0210783-89cd-11d0-af08-00a0c925cd16")]
		[SuppressUnmanagedCodeSecurity]
		[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
		internal interface IDirectSoundNotify
		{
			void SetNotificationPositions(uint dwPositionNotifies, [In][MarshalAs(UnmanagedType.LPArray)] DirectSoundBufferPositionNotify[] pcPositionNotifies);
		}

		private delegate bool DSEnumCallback(IntPtr lpGuid, IntPtr lpcstrDescription, IntPtr lpcstrModule, IntPtr lpContext);

		private PlaybackState playbackState;

		private WaveFormat waveFormat;

		private int samplesTotalSize;

		private int samplesFrameSize;

		private int nextSamplesWriteIndex;

		private int desiredLatency;

		private Guid device;

		private byte[] samples;

		private IWaveProvider waveStream;

		private IDirectSound directSound;

		private IDirectSoundBuffer primarySoundBuffer;

		private IDirectSoundBuffer sec

Dependencies/NAudio.dll

Decompiled a day ago
using System;
using System.Diagnostics;
using System.IO;
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.Versioning;
using System.Security;
using System.Security.Permissions;
using NAudio.Wave.SampleProviders;

[assembly: CompilationRelaxations(8)]
[assembly: RuntimeCompatibility(WrapNonExceptionThrows = true)]
[assembly: Debuggable(DebuggableAttribute.DebuggingModes.IgnoreSymbolStoreSequencePoints)]
[assembly: TargetFramework(".NETCoreApp,Version=v3.1", FrameworkDisplayName = ".NET Core 3.1")]
[assembly: AssemblyCompany("Mark Heath & Contributors")]
[assembly: AssemblyConfiguration("Release")]
[assembly: AssemblyCopyright("© Mark Heath 2023")]
[assembly: AssemblyDescription("NAudio, an audio library for .NET")]
[assembly: AssemblyFileVersion("2.2.1.0")]
[assembly: AssemblyInformationalVersion("2.2.1")]
[assembly: AssemblyProduct("NAudio")]
[assembly: AssemblyTitle("NAudio")]
[assembly: AssemblyMetadata("RepositoryUrl", "https://github.com/naudio/NAudio")]
[assembly: SecurityPermission(SecurityAction.RequestMinimum, SkipVerification = true)]
[assembly: AssemblyVersion("2.2.1.0")]
[module: UnverifiableCode]
namespace NAudio.Wave;

public class AudioFileReader : WaveStream, ISampleProvider
{
	private WaveStream readerStream;

	private readonly SampleChannel sampleChannel;

	private readonly int destBytesPerSample;

	private readonly int sourceBytesPerSample;

	private readonly long length;

	private readonly object lockObject;

	public string FileName { get; }

	public override WaveFormat WaveFormat => sampleChannel.WaveFormat;

	public override long Length => length;

	public override long Position
	{
		get
		{
			return SourceToDest(((Stream)(object)readerStream).Position);
		}
		set
		{
			lock (lockObject)
			{
				((Stream)(object)readerStream).Position = DestToSource(value);
			}
		}
	}

	public float Volume
	{
		get
		{
			return sampleChannel.Volume;
		}
		set
		{
			sampleChannel.Volume = value;
		}
	}

	public AudioFileReader(string fileName)
	{
		//IL_0050: Unknown result type (might be due to invalid IL or missing references)
		//IL_005a: Expected O, but got Unknown
		lockObject = new object();
		FileName = fileName;
		CreateReaderStream(fileName);
		sourceBytesPerSample = readerStream.WaveFormat.BitsPerSample / 8 * readerStream.WaveFormat.Channels;
		sampleChannel = new SampleChannel((IWaveProvider)(object)readerStream, false);
		destBytesPerSample = 4 * sampleChannel.WaveFormat.Channels;
		length = SourceToDest(((Stream)(object)readerStream).Length);
	}

	private void CreateReaderStream(string fileName)
	{
		//IL_0010: Unknown result type (might be due to invalid IL or missing references)
		//IL_001a: Expected O, but got Unknown
		//IL_0025: Unknown result type (might be due to invalid IL or missing references)
		//IL_002b: Invalid comparison between Unknown and I4
		//IL_003b: Unknown result type (might be due to invalid IL or missing references)
		//IL_0041: Invalid comparison between Unknown and I4
		//IL_00c1: Unknown result type (might be due to invalid IL or missing references)
		//IL_00cb: Expected O, but got Unknown
		//IL_0098: Unknown result type (might be due to invalid IL or missing references)
		//IL_00a2: Expected O, but got Unknown
		//IL_005e: Unknown result type (might be due to invalid IL or missing references)
		//IL_0068: Expected O, but got Unknown
		//IL_00ce: Unknown result type (might be due to invalid IL or missing references)
		//IL_00d8: Expected O, but got Unknown
		if (fileName.EndsWith(".wav", StringComparison.OrdinalIgnoreCase))
		{
			readerStream = (WaveStream)new WaveFileReader(fileName);
			if ((int)readerStream.WaveFormat.Encoding != 1 && (int)readerStream.WaveFormat.Encoding != 3)
			{
				readerStream = WaveFormatConversionStream.CreatePcmStream(readerStream);
				readerStream = (WaveStream)new BlockAlignReductionStream(readerStream);
			}
		}
		else if (fileName.EndsWith(".mp3", StringComparison.OrdinalIgnoreCase))
		{
			if (Environment.OSVersion.Version.Major < 6)
			{
				readerStream = (WaveStream)(object)new Mp3FileReader(fileName);
			}
			else
			{
				readerStream = (WaveStream)new MediaFoundationReader(fileName);
			}
		}
		else if (fileName.EndsWith(".aiff", StringComparison.OrdinalIgnoreCase) || fileName.EndsWith(".aif", StringComparison.OrdinalIgnoreCase))
		{
			readerStream = (WaveStream)new AiffFileReader(fileName);
		}
		else
		{
			readerStream = (WaveStream)new MediaFoundationReader(fileName);
		}
	}

	public override int Read(byte[] buffer, int offset, int count)
	{
		//IL_0001: Unknown result type (might be due to invalid IL or missing references)
		//IL_0007: Expected O, but got Unknown
		WaveBuffer val = new WaveBuffer(buffer);
		int count2 = count / 4;
		return Read(val.FloatBuffer, offset / 4, count2) * 4;
	}

	public int Read(float[] buffer, int offset, int count)
	{
		lock (lockObject)
		{
			return sampleChannel.Read(buffer, offset, count);
		}
	}

	private long SourceToDest(long sourceBytes)
	{
		return destBytesPerSample * (sourceBytes / sourceBytesPerSample);
	}

	private long DestToSource(long destBytes)
	{
		return sourceBytesPerSample * (destBytes / destBytesPerSample);
	}

	protected override void Dispose(bool disposing)
	{
		if (disposing && readerStream != null)
		{
			((Stream)(object)readerStream).Dispose();
			readerStream = null;
		}
		((Stream)this).Dispose(disposing);
	}
}
public class Mp3FileReader : Mp3FileReaderBase
{
	public Mp3FileReader(string mp3FileName)
		: base((Stream)File.OpenRead(mp3FileName), new FrameDecompressorBuilder(CreateAcmFrameDecompressor), true)
	{
	}//IL_000e: Unknown result type (might be due to invalid IL or missing references)
	//IL_0019: Expected O, but got Unknown


	public Mp3FileReader(Stream inputStream)
		: base(inputStream, new FrameDecompressorBuilder(CreateAcmFrameDecompressor), false)
	{
	}//IL_0009: Unknown result type (might be due to invalid IL or missing references)
	//IL_0014: Expected O, but got Unknown


	public static IMp3FrameDecompressor CreateAcmFrameDecompressor(WaveFormat mp3Format)
	{
		//IL_0001: Unknown result type (might be due to invalid IL or missing references)
		//IL_0007: Expected O, but got Unknown
		return (IMp3FrameDecompressor)new AcmMp3FrameDecompressor(mp3Format);
	}
}

Dependencies/NAudio.Wasapi.dll

Decompiled a day ago
using System;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Runtime.InteropServices.ComTypes;
using System.Runtime.Versioning;
using System.Security;
using System.Security.Permissions;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using NAudio.CoreAudioApi;
using NAudio.CoreAudioApi.Interfaces;
using NAudio.Dmo;
using NAudio.Dmo.Effect;
using NAudio.MediaFoundation;
using NAudio.Utils;
using NAudio.Wasapi.CoreAudioApi;
using NAudio.Wasapi.CoreAudioApi.Interfaces;
using NAudio.Wave;

[assembly: CompilationRelaxations(8)]
[assembly: RuntimeCompatibility(WrapNonExceptionThrows = true)]
[assembly: Debuggable(DebuggableAttribute.DebuggingModes.IgnoreSymbolStoreSequencePoints)]
[assembly: TargetFramework(".NETStandard,Version=v2.0", FrameworkDisplayName = ".NET Standard 2.0")]
[assembly: AssemblyCompany("Mark Heath")]
[assembly: AssemblyConfiguration("Release")]
[assembly: AssemblyCopyright("© Mark Heath 2023")]
[assembly: AssemblyFileVersion("2.2.1.0")]
[assembly: AssemblyInformationalVersion("2.2.1")]
[assembly: AssemblyProduct("NAudio.Wasapi")]
[assembly: AssemblyTitle("NAudio.Wasapi")]
[assembly: AssemblyMetadata("RepositoryUrl", "https://github.com/naudio/NAudio")]
[assembly: SecurityPermission(SecurityAction.RequestMinimum, SkipVerification = true)]
[assembly: AssemblyVersion("2.2.1.0")]
[module: UnverifiableCode]
namespace NAudio.MediaFoundation
{
	public static class AudioSubtypes
	{
		[FieldDescription("AAC")]
		public static readonly Guid MFAudioFormat_AAC = new Guid("00001610-0000-0010-8000-00aa00389b71");

		[FieldDescription("ADTS")]
		public static readonly Guid MFAudioFormat_ADTS = new Guid("00001600-0000-0010-8000-00aa00389b71");

		[FieldDescription("Dolby AC3 SPDIF")]
		public static readonly Guid MFAudioFormat_Dolby_AC3_SPDIF = new Guid("00000092-0000-0010-8000-00aa00389b71");

		[FieldDescription("DRM")]
		public static readonly Guid MFAudioFormat_DRM = new Guid("00000009-0000-0010-8000-00aa00389b71");

		[FieldDescription("DTS")]
		public static readonly Guid MFAudioFormat_DTS = new Guid("00000008-0000-0010-8000-00aa00389b71");

		[FieldDescription("IEEE floating-point")]
		public static readonly Guid MFAudioFormat_Float = new Guid("00000003-0000-0010-8000-00aa00389b71");

		[FieldDescription("MP3")]
		public static readonly Guid MFAudioFormat_MP3 = new Guid("00000055-0000-0010-8000-00aa00389b71");

		[FieldDescription("MPEG")]
		public static readonly Guid MFAudioFormat_MPEG = new Guid("00000050-0000-0010-8000-00aa00389b71");

		[FieldDescription("WMA 9 Voice codec")]
		public static readonly Guid MFAudioFormat_MSP1 = new Guid("0000000a-0000-0010-8000-00aa00389b71");

		[FieldDescription("PCM")]
		public static readonly Guid MFAudioFormat_PCM = new Guid("00000001-0000-0010-8000-00aa00389b71");

		[FieldDescription("WMA SPDIF")]
		public static readonly Guid MFAudioFormat_WMASPDIF = new Guid("00000164-0000-0010-8000-00aa00389b71");

		[FieldDescription("WMAudio Lossless")]
		public static readonly Guid MFAudioFormat_WMAudio_Lossless = new Guid("00000163-0000-0010-8000-00aa00389b71");

		[FieldDescription("Windows Media Audio")]
		public static readonly Guid MFAudioFormat_WMAudioV8 = new Guid("00000161-0000-0010-8000-00aa00389b71");

		[FieldDescription("Windows Media Audio Professional")]
		public static readonly Guid MFAudioFormat_WMAudioV9 = new Guid("00000162-0000-0010-8000-00aa00389b71");

		[FieldDescription("Dolby AC3")]
		public static readonly Guid MFAudioFormat_Dolby_AC3 = new Guid("e06d802c-db46-11cf-b4d1-00805f6cbbea");

		public static readonly Guid MFAudioFormat_FLAC = new Guid("0000f1ac-0000-0010-8000-00aa00389b71");

		public static readonly Guid MFAudioFormat_ALAC = new Guid("63616c61-0000-0010-8000-00aa00389b71");

		[FieldDescription("MPEG-4 and AAC Audio Types")]
		public static readonly Guid MEDIASUBTYPE_RAW_AAC1 = new Guid("000000ff-0000-0010-8000-00aa00389b71");

		[FieldDescription("Dolby Audio Types")]
		public static readonly Guid MEDIASUBTYPE_DVM = new Guid("00002000-0000-0010-8000-00aa00389b71");

		[FieldDescription("Dolby Audio Types")]
		public static readonly Guid MEDIASUBTYPE_DOLBY_DDPLUS = new Guid("a7fb87af-2d02-42fb-a4d4-05cd93843bdd");

		[FieldDescription("μ-law")]
		public static readonly Guid KSDATAFORMAT_SUBTYPE_MULAW = new Guid("00000007-0000-0010-8000-00aa00389b71");

		[FieldDescription("ADPCM")]
		public static readonly Guid KSDATAFORMAT_SUBTYPE_ADPCM = new Guid("00000002-0000-0010-8000-00aa00389b71");

		[FieldDescription("Dolby Digital Plus for HDMI")]
		public static readonly Guid KSDATAFORMAT_SUBTYPE_IEC61937_DOLBY_DIGITAL_PLUS = new Guid("0000000a-0cea-0010-8000-00aa00389b71");

		[FieldDescription("MSAudio1")]
		public static readonly Guid MEDIASUBTYPE_MSAUDIO1 = new Guid("00000160-0000-0010-8000-00aa00389b71");

		[FieldDescription("IMA ADPCM")]
		public static readonly Guid ImaAdpcm = new Guid("00000011-0000-0010-8000-00aa00389b71");

		[FieldDescription("WMSP2")]
		public static readonly Guid WMMEDIASUBTYPE_WMSP2 = new Guid("0000000b-0000-0010-8000-00aa00389b71");
	}
	[ComImport]
	[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
	[Guid("7FEE9E9A-4A89-47a6-899C-B6A53A70FB67")]
	public interface IMFActivate : IMFAttributes
	{
		new void GetItem([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [In][Out] IntPtr pValue);

		new void GetItemType([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out int pType);

		new void CompareItem([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, IntPtr value, [MarshalAs(UnmanagedType.Bool)] out bool pbResult);

		new void Compare([MarshalAs(UnmanagedType.Interface)] IMFAttributes pTheirs, int matchType, [MarshalAs(UnmanagedType.Bool)] out bool pbResult);

		new void GetUINT32([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out int punValue);

		new void GetUINT64([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out long punValue);

		new void GetDouble([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out double pfValue);

		new void GetGUID([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out Guid pguidValue);

		new void GetStringLength([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out int pcchLength);

		new void GetString([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [Out][MarshalAs(UnmanagedType.LPWStr)] StringBuilder pwszValue, int cchBufSize, out int pcchLength);

		new void GetAllocatedString([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [MarshalAs(UnmanagedType.LPWStr)] out string ppwszValue, out int pcchLength);

		new void GetBlobSize([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out int pcbBlobSize);

		new void GetBlob([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [Out][MarshalAs(UnmanagedType.LPArray)] byte[] pBuf, int cbBufSize, out int pcbBlobSize);

		new void GetAllocatedBlob([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out IntPtr ip, out int pcbSize);

		new void GetUnknown([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [In][MarshalAs(UnmanagedType.LPStruct)] Guid riid, [MarshalAs(UnmanagedType.IUnknown)] out object ppv);

		new void SetItem([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, IntPtr value);

		new void DeleteItem([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey);

		new void DeleteAllItems();

		new void SetUINT32([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, int unValue);

		new void SetUINT64([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, long unValue);

		new void SetDouble([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, double fValue);

		new void SetGUID([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [In][MarshalAs(UnmanagedType.LPStruct)] Guid guidValue);

		new void SetString([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [In][MarshalAs(UnmanagedType.LPWStr)] string wszValue);

		new void SetBlob([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [In][MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 2)] byte[] pBuf, int cbBufSize);

		new void SetUnknown([MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [In][MarshalAs(UnmanagedType.IUnknown)] object pUnknown);

		new void LockStore();

		new void UnlockStore();

		new void GetCount(out int pcItems);

		new void GetItemByIndex(int unIndex, out Guid pGuidKey, [In][Out] IntPtr pValue);

		new void CopyAllItems([In][MarshalAs(UnmanagedType.Interface)] IMFAttributes pDest);

		void ActivateObject([In][MarshalAs(UnmanagedType.LPStruct)] Guid riid, [MarshalAs(UnmanagedType.Interface)] out object ppv);

		void ShutdownObject();

		void DetachObject();
	}
	[ComImport]
	[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
	[Guid("2CD2D921-C447-44A7-A13C-4ADABFC247E3")]
	public interface IMFAttributes
	{
		void GetItem([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [In][Out] IntPtr pValue);

		void GetItemType([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out int pType);

		void CompareItem([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, IntPtr value, [MarshalAs(UnmanagedType.Bool)] out bool pbResult);

		void Compare([MarshalAs(UnmanagedType.Interface)] IMFAttributes pTheirs, int matchType, [MarshalAs(UnmanagedType.Bool)] out bool pbResult);

		void GetUINT32([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out int punValue);

		void GetUINT64([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out long punValue);

		void GetDouble([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out double pfValue);

		void GetGUID([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out Guid pguidValue);

		void GetStringLength([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out int pcchLength);

		void GetString([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [Out][MarshalAs(UnmanagedType.LPWStr)] StringBuilder pwszValue, int cchBufSize, out int pcchLength);

		void GetAllocatedString([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [MarshalAs(UnmanagedType.LPWStr)] out string ppwszValue, out int pcchLength);

		void GetBlobSize([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out int pcbBlobSize);

		void GetBlob([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [Out][MarshalAs(UnmanagedType.LPArray)] byte[] pBuf, int cbBufSize, out int pcbBlobSize);

		void GetAllocatedBlob([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out IntPtr ip, out int pcbSize);

		void GetUnknown([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [In][MarshalAs(UnmanagedType.LPStruct)] Guid riid, [MarshalAs(UnmanagedType.IUnknown)] out object ppv);

		void SetItem([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, IntPtr Value);

		void DeleteItem([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey);

		void DeleteAllItems();

		void SetUINT32([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, int unValue);

		void SetUINT64([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, long unValue);

		void SetDouble([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, double fValue);

		void SetGUID([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [In][MarshalAs(UnmanagedType.LPStruct)] Guid guidValue);

		void SetString([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [In][MarshalAs(UnmanagedType.LPWStr)] string wszValue);

		void SetBlob([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [In][MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 2)] byte[] pBuf, int cbBufSize);

		void SetUnknown([MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [In][MarshalAs(UnmanagedType.IUnknown)] object pUnknown);

		void LockStore();

		void UnlockStore();

		void GetCount(out int pcItems);

		void GetItemByIndex(int unIndex, out Guid pGuidKey, [In][Out] IntPtr pValue);

		void CopyAllItems([In][MarshalAs(UnmanagedType.Interface)] IMFAttributes pDest);
	}
	[ComImport]
	[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
	[Guid("ad4c1b00-4bf7-422f-9175-756693d9130d")]
	public interface IMFByteStream
	{
		void GetCapabilities(ref int pdwCapabiities);

		void GetLength(ref long pqwLength);

		void SetLength(long qwLength);

		void GetCurrentPosition(ref long pqwPosition);

		void SetCurrentPosition(long qwPosition);

		void IsEndOfStream([MarshalAs(UnmanagedType.Bool)] ref bool pfEndOfStream);

		void Read(IntPtr pb, int cb, ref int pcbRead);

		void BeginRead(IntPtr pb, int cb, IntPtr pCallback, IntPtr punkState);

		void EndRead(IntPtr pResult, ref int pcbRead);

		void Write(IntPtr pb, int cb, ref int pcbWritten);

		void BeginWrite(IntPtr pb, int cb, IntPtr pCallback, IntPtr punkState);

		void EndWrite(IntPtr pResult, ref int pcbWritten);

		void Seek(int SeekOrigin, long llSeekOffset, int dwSeekFlags, ref long pqwCurrentPosition);

		void Flush();

		void Close();
	}
	[ComImport]
	[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
	[Guid("5BC8A76B-869A-46A3-9B03-FA218A66AEBE")]
	public interface IMFCollection
	{
		void GetElementCount(out int pcElements);

		void GetElement([In] int dwElementIndex, [MarshalAs(UnmanagedType.IUnknown)] out object ppUnkElement);

		void AddElement([In][MarshalAs(UnmanagedType.IUnknown)] object pUnkElement);

		void RemoveElement([In] int dwElementIndex, [MarshalAs(UnmanagedType.IUnknown)] out object ppUnkElement);

		void InsertElementAt([In] int dwIndex, [In][MarshalAs(UnmanagedType.IUnknown)] object pUnknown);

		void RemoveAllElements();
	}
	[ComImport]
	[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
	[Guid("045FA593-8799-42b8-BC8D-8968C6453507")]
	public interface IMFMediaBuffer
	{
		void Lock(out IntPtr ppbBuffer, out int pcbMaxLength, out int pcbCurrentLength);

		void Unlock();

		void GetCurrentLength(out int pcbCurrentLength);

		void SetCurrentLength(int cbCurrentLength);

		void GetMaxLength(out int pcbMaxLength);
	}
	[ComImport]
	[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
	[Guid("DF598932-F10C-4E39-BBA2-C308F101DAA3")]
	public interface IMFMediaEvent : IMFAttributes
	{
		new void GetItem([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [In][Out] IntPtr pValue);

		new void GetItemType([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out int pType);

		new void CompareItem([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, IntPtr value, [MarshalAs(UnmanagedType.Bool)] out bool pbResult);

		new void Compare([MarshalAs(UnmanagedType.Interface)] IMFAttributes pTheirs, int matchType, [MarshalAs(UnmanagedType.Bool)] out bool pbResult);

		new void GetUINT32([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out int punValue);

		new void GetUINT64([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out long punValue);

		new void GetDouble([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out double pfValue);

		new void GetGUID([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out Guid pguidValue);

		new void GetStringLength([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out int pcchLength);

		new void GetString([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [Out][MarshalAs(UnmanagedType.LPWStr)] StringBuilder pwszValue, int cchBufSize, out int pcchLength);

		new void GetAllocatedString([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [MarshalAs(UnmanagedType.LPWStr)] out string ppwszValue, out int pcchLength);

		new void GetBlobSize([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out int pcbBlobSize);

		new void GetBlob([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [Out][MarshalAs(UnmanagedType.LPArray)] byte[] pBuf, int cbBufSize, out int pcbBlobSize);

		new void GetAllocatedBlob([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out IntPtr ip, out int pcbSize);

		new void GetUnknown([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [In][MarshalAs(UnmanagedType.LPStruct)] Guid riid, [MarshalAs(UnmanagedType.IUnknown)] out object ppv);

		new void SetItem([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, IntPtr value);

		new void DeleteItem([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey);

		new void DeleteAllItems();

		new void SetUINT32([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, int unValue);

		new void SetUINT64([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, long unValue);

		new void SetDouble([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, double fValue);

		new void SetGUID([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [In][MarshalAs(UnmanagedType.LPStruct)] Guid guidValue);

		new void SetString([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [In][MarshalAs(UnmanagedType.LPWStr)] string wszValue);

		new void SetBlob([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [In][MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 2)] byte[] pBuf, int cbBufSize);

		new void SetUnknown([MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [In][MarshalAs(UnmanagedType.IUnknown)] object pUnknown);

		new void LockStore();

		new void UnlockStore();

		new void GetCount(out int pcItems);

		new void GetItemByIndex(int unIndex, out Guid pGuidKey, [In][Out] IntPtr pValue);

		new void CopyAllItems([In][MarshalAs(UnmanagedType.Interface)] IMFAttributes pDest);

		void GetType(out MediaEventType pmet);

		void GetExtendedType(out Guid pguidExtendedType);

		void GetStatus([MarshalAs(UnmanagedType.Error)] out int phrStatus);

		void GetValue([Out] IntPtr pvValue);
	}
	[ComImport]
	[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
	[Guid("44AE0FA8-EA31-4109-8D2E-4CAE4997C555")]
	public interface IMFMediaType : IMFAttributes
	{
		new void GetItem([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [In][Out] IntPtr pValue);

		new void GetItemType([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out int pType);

		new void CompareItem([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, IntPtr value, [MarshalAs(UnmanagedType.Bool)] out bool pbResult);

		new void Compare([MarshalAs(UnmanagedType.Interface)] IMFAttributes pTheirs, int matchType, [MarshalAs(UnmanagedType.Bool)] out bool pbResult);

		new void GetUINT32([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out int punValue);

		new void GetUINT64([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out long punValue);

		new void GetDouble([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out double pfValue);

		new void GetGUID([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out Guid pguidValue);

		new void GetStringLength([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out int pcchLength);

		new void GetString([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [Out][MarshalAs(UnmanagedType.LPWStr)] StringBuilder pwszValue, int cchBufSize, out int pcchLength);

		new void GetAllocatedString([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [MarshalAs(UnmanagedType.LPWStr)] out string ppwszValue, out int pcchLength);

		new void GetBlobSize([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out int pcbBlobSize);

		new void GetBlob([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [Out][MarshalAs(UnmanagedType.LPArray)] byte[] pBuf, int cbBufSize, out int pcbBlobSize);

		new void GetAllocatedBlob([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out IntPtr ip, out int pcbSize);

		new void GetUnknown([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [In][MarshalAs(UnmanagedType.LPStruct)] Guid riid, [MarshalAs(UnmanagedType.IUnknown)] out object ppv);

		new void SetItem([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, IntPtr value);

		new void DeleteItem([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey);

		new void DeleteAllItems();

		new void SetUINT32([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, int unValue);

		new void SetUINT64([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, long unValue);

		new void SetDouble([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, double fValue);

		new void SetGUID([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [In][MarshalAs(UnmanagedType.LPStruct)] Guid guidValue);

		new void SetString([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [In][MarshalAs(UnmanagedType.LPWStr)] string wszValue);

		new void SetBlob([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [In][MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 2)] byte[] pBuf, int cbBufSize);

		new void SetUnknown([MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [In][MarshalAs(UnmanagedType.IUnknown)] object pUnknown);

		new void LockStore();

		new void UnlockStore();

		new void GetCount(out int pcItems);

		new void GetItemByIndex(int unIndex, out Guid pGuidKey, [In][Out] IntPtr pValue);

		new void CopyAllItems([In][MarshalAs(UnmanagedType.Interface)] IMFAttributes pDest);

		void GetMajorType(out Guid pguidMajorType);

		void IsCompressedFormat([MarshalAs(UnmanagedType.Bool)] out bool pfCompressed);

		[PreserveSig]
		int IsEqual([In][MarshalAs(UnmanagedType.Interface)] IMFMediaType pIMediaType, ref int pdwFlags);

		void GetRepresentation([In] Guid guidRepresentation, ref IntPtr ppvRepresentation);

		void FreeRepresentation([In] Guid guidRepresentation, [In] IntPtr pvRepresentation);
	}
	[ComImport]
	[Guid("E7FE2E12-661C-40DA-92F9-4F002AB67627")]
	[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
	public interface IMFReadWriteClassFactory
	{
		void CreateInstanceFromURL([In][MarshalAs(UnmanagedType.LPStruct)] Guid clsid, [In][MarshalAs(UnmanagedType.LPWStr)] string pwszURL, [In][MarshalAs(UnmanagedType.Interface)] IMFAttributes pAttributes, [In][MarshalAs(UnmanagedType.LPStruct)] Guid riid, [MarshalAs(UnmanagedType.Interface)] out object ppvObject);

		void CreateInstanceFromObject([In][MarshalAs(UnmanagedType.LPStruct)] Guid clsid, [In][MarshalAs(UnmanagedType.IUnknown)] object punkObject, [In][MarshalAs(UnmanagedType.Interface)] IMFAttributes pAttributes, [In][MarshalAs(UnmanagedType.LPStruct)] Guid riid, [MarshalAs(UnmanagedType.Interface)] out object ppvObject);
	}
	[ComImport]
	[Guid("48e2ed0f-98c2-4a37-bed5-166312ddd83f")]
	public class MFReadWriteClassFactory
	{
	}
	[ComImport]
	[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
	[Guid("c40a00f2-b93a-4d80-ae8c-5a1c634f58e4")]
	public interface IMFSample : IMFAttributes
	{
		new void GetItem([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [In][Out] IntPtr pValue);

		new void GetItemType([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out int pType);

		new void CompareItem([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, IntPtr value, [MarshalAs(UnmanagedType.Bool)] out bool pbResult);

		new void Compare([MarshalAs(UnmanagedType.Interface)] IMFAttributes pTheirs, int matchType, [MarshalAs(UnmanagedType.Bool)] out bool pbResult);

		new void GetUINT32([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out int punValue);

		new void GetUINT64([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out long punValue);

		new void GetDouble([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out double pfValue);

		new void GetGUID([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out Guid pguidValue);

		new void GetStringLength([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out int pcchLength);

		new void GetString([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [Out][MarshalAs(UnmanagedType.LPWStr)] StringBuilder pwszValue, int cchBufSize, out int pcchLength);

		new void GetAllocatedString([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [MarshalAs(UnmanagedType.LPWStr)] out string ppwszValue, out int pcchLength);

		new void GetBlobSize([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out int pcbBlobSize);

		new void GetBlob([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [Out][MarshalAs(UnmanagedType.LPArray)] byte[] pBuf, int cbBufSize, out int pcbBlobSize);

		new void GetAllocatedBlob([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, out IntPtr ip, out int pcbSize);

		new void GetUnknown([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [In][MarshalAs(UnmanagedType.LPStruct)] Guid riid, [MarshalAs(UnmanagedType.IUnknown)] out object ppv);

		new void SetItem([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, IntPtr value);

		new void DeleteItem([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey);

		new void DeleteAllItems();

		new void SetUINT32([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, int unValue);

		new void SetUINT64([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, long unValue);

		new void SetDouble([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, double fValue);

		new void SetGUID([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [In][MarshalAs(UnmanagedType.LPStruct)] Guid guidValue);

		new void SetString([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [In][MarshalAs(UnmanagedType.LPWStr)] string wszValue);

		new void SetBlob([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [In][MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 2)] byte[] pBuf, int cbBufSize);

		new void SetUnknown([MarshalAs(UnmanagedType.LPStruct)] Guid guidKey, [In][MarshalAs(UnmanagedType.IUnknown)] object pUnknown);

		new void LockStore();

		new void UnlockStore();

		new void GetCount(out int pcItems);

		new void GetItemByIndex(int unIndex, out Guid pGuidKey, [In][Out] IntPtr pValue);

		new void CopyAllItems([In][MarshalAs(UnmanagedType.Interface)] IMFAttributes pDest);

		void GetSampleFlags(out int pdwSampleFlags);

		void SetSampleFlags(int dwSampleFlags);

		void GetSampleTime(out long phnsSampletime);

		void SetSampleTime(long hnsSampleTime);

		void GetSampleDuration(out long phnsSampleDuration);

		void SetSampleDuration(long hnsSampleDuration);

		void GetBufferCount(out int pdwBufferCount);

		void GetBufferByIndex(int dwIndex, out IMFMediaBuffer ppBuffer);

		void ConvertToContiguousBuffer(out IMFMediaBuffer ppBuffer);

		void AddBuffer(IMFMediaBuffer pBuffer);

		void RemoveBufferByIndex(int dwIndex);

		void RemoveAllBuffers();

		void GetTotalLength(out int pcbTotalLength);

		void CopyToBuffer(IMFMediaBuffer pBuffer);
	}
	[ComImport]
	[Guid("3137f1cd-fe5e-4805-a5d8-fb477448cb3d")]
	[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
	public interface IMFSinkWriter
	{
		void AddStream([In][MarshalAs(UnmanagedType.Interface)] IMFMediaType pTargetMediaType, out int pdwStreamIndex);

		void SetInputMediaType([In] int dwStreamIndex, [In][MarshalAs(UnmanagedType.Interface)] IMFMediaType pInputMediaType, [In][MarshalAs(UnmanagedType.Interface)] IMFAttributes pEncodingParameters);

		void BeginWriting();

		void WriteSample([In] int dwStreamIndex, [In][MarshalAs(UnmanagedType.Interface)] IMFSample pSample);

		void SendStreamTick([In] int dwStreamIndex, [In] long llTimestamp);

		void PlaceMarker([In] int dwStreamIndex, [In] IntPtr pvContext);

		void NotifyEndOfSegment([In] int dwStreamIndex);

		void Flush([In] int dwStreamIndex);

		void DoFinalize();

		void GetServiceForStream([In] int dwStreamIndex, [In] ref Guid guidService, [In] ref Guid riid, out IntPtr ppvObject);

		void GetStatistics([In] int dwStreamIndex, [In][Out] MF_SINK_WRITER_STATISTICS pStats);
	}
	[ComImport]
	[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
	[Guid("70ae66f2-c809-4e4f-8915-bdcb406b7993")]
	public interface IMFSourceReader
	{
		void GetStreamSelection([In] int dwStreamIndex, [MarshalAs(UnmanagedType.Bool)] out bool pSelected);

		void SetStreamSelection([In] int dwStreamIndex, [In][MarshalAs(UnmanagedType.Bool)] bool pSelected);

		void GetNativeMediaType([In] int dwStreamIndex, [In] int dwMediaTypeIndex, out IMFMediaType ppMediaType);

		void GetCurrentMediaType([In] int dwStreamIndex, out IMFMediaType ppMediaType);

		void SetCurrentMediaType([In] int dwStreamIndex, IntPtr pdwReserved, [In] IMFMediaType pMediaType);

		void SetCurrentPosition([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidTimeFormat, [In] IntPtr varPosition);

		void ReadSample([In] int dwStreamIndex, [In] int dwControlFlags, out int pdwActualStreamIndex, out MF_SOURCE_READER_FLAG pdwStreamFlags, out ulong pllTimestamp, out IMFSample ppSample);

		void Flush([In] int dwStreamIndex);

		void GetServiceForStream([In] int dwStreamIndex, [In][MarshalAs(UnmanagedType.LPStruct)] Guid guidService, [In][MarshalAs(UnmanagedType.LPStruct)] Guid riid, out IntPtr ppvObject);

		[PreserveSig]
		int GetPresentationAttribute([In] int dwStreamIndex, [In][MarshalAs(UnmanagedType.LPStruct)] Guid guidAttribute, [Out] IntPtr pvarAttribute);
	}
	[Flags]
	public enum MF_SOURCE_READER_FLAG
	{
		None = 0,
		MF_SOURCE_READERF_ERROR = 1,
		MF_SOURCE_READERF_ENDOFSTREAM = 2,
		MF_SOURCE_READERF_NEWSTREAM = 4,
		MF_SOURCE_READERF_NATIVEMEDIATYPECHANGED = 0x10,
		MF_SOURCE_READERF_CURRENTMEDIATYPECHANGED = 0x20,
		MF_SOURCE_READERF_STREAMTICK = 0x100,
		MF_SOURCE_READERF_ALLEFFECTSREMOVED = 0x200
	}
	[ComImport]
	[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
	[Guid("bf94c121-5b05-4e6f-8000-ba598961414d")]
	public interface IMFTransform
	{
		void GetStreamLimits(out int pdwInputMinimum, out int pdwInputMaximum, out int pdwOutputMinimum, out int pdwOutputMaximum);

		void GetStreamCount(out int pcInputStreams, out int pcOutputStreams);

		void GetStreamIds([In] int dwInputIdArraySize, [In][Out] IntPtr pdwInputIDs, [In] int dwOutputIdArraySize, [In][Out] IntPtr pdwOutputIDs);

		void GetInputStreamInfo([In] int dwInputStreamId, out MFT_INPUT_STREAM_INFO pStreamInfo);

		void GetOutputStreamInfo([In] int dwOutputStreamId, out MFT_OUTPUT_STREAM_INFO pStreamInfo);

		void GetAttributes(out IMFAttributes pAttributes);

		void GetInputStreamAttributes([In] int dwInputStreamId, out IMFAttributes pAttributes);

		void GetOutputStreamAttributes([In] int dwOutputStreamId, out IMFAttributes pAttributes);

		void DeleteInputStream([In] int dwOutputStreamId);

		void AddInputStreams([In] int cStreams, [In] IntPtr adwStreamIDs);

		void GetInputAvailableType([In] int dwInputStreamId, [In] int dwTypeIndex, out IMFMediaType ppType);

		void GetOutputAvailableType([In] int dwOutputStreamId, [In] int dwTypeIndex, out IMFMediaType ppType);

		void SetInputType([In] int dwInputStreamId, [In] IMFMediaType pType, [In] _MFT_SET_TYPE_FLAGS dwFlags);

		void SetOutputType([In] int dwOutputStreamId, [In] IMFMediaType pType, [In] _MFT_SET_TYPE_FLAGS dwFlags);

		void GetInputCurrentType([In] int dwInputStreamId, out IMFMediaType ppType);

		void GetOutputCurrentType([In] int dwOutputStreamId, out IMFMediaType ppType);

		void GetInputStatus([In] int dwInputStreamId, out _MFT_INPUT_STATUS_FLAGS pdwFlags);

		void GetOutputStatus([In] int dwInputStreamId, out _MFT_OUTPUT_STATUS_FLAGS pdwFlags);

		void SetOutputBounds([In] long hnsLowerBound, [In] long hnsUpperBound);

		void ProcessEvent([In] int dwInputStreamId, [In] IMFMediaEvent pEvent);

		void ProcessMessage([In] MFT_MESSAGE_TYPE eMessage, [In] IntPtr ulParam);

		void ProcessInput([In] int dwInputStreamId, [In] IMFSample pSample, int dwFlags);

		[PreserveSig]
		int ProcessOutput([In] _MFT_PROCESS_OUTPUT_FLAGS dwFlags, [In] int cOutputBufferCount, [In][Out][MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 1)] MFT_OUTPUT_DATA_BUFFER[] pOutputSamples, out _MFT_PROCESS_OUTPUT_STATUS pdwStatus);
	}
	public enum MediaEventType
	{
		MEUnknown = 0,
		MEError = 1,
		MEExtendedType = 2,
		MENonFatalError = 3,
		MESessionUnknown = 100,
		MESessionTopologySet = 101,
		MESessionTopologiesCleared = 102,
		MESessionStarted = 103,
		MESessionPaused = 104,
		MESessionStopped = 105,
		MESessionClosed = 106,
		MESessionEnded = 107,
		MESessionRateChanged = 108,
		MESessionScrubSampleComplete = 109,
		MESessionCapabilitiesChanged = 110,
		MESessionTopologyStatus = 111,
		MESessionNotifyPresentationTime = 112,
		MENewPresentation = 113,
		MELicenseAcquisitionStart = 114,
		MELicenseAcquisitionCompleted = 115,
		MEIndividualizationStart = 116,
		MEIndividualizationCompleted = 117,
		MEEnablerProgress = 118,
		MEEnablerCompleted = 119,
		MEPolicyError = 120,
		MEPolicyReport = 121,
		MEBufferingStarted = 122,
		MEBufferingStopped = 123,
		MEConnectStart = 124,
		MEConnectEnd = 125,
		MEReconnectStart = 126,
		MEReconnectEnd = 127,
		MERendererEvent = 128,
		MESessionStreamSinkFormatChanged = 129,
		MESourceUnknown = 200,
		MESourceStarted = 201,
		MEStreamStarted = 202,
		MESourceSeeked = 203,
		MEStreamSeeked = 204,
		MENewStream = 205,
		MEUpdatedStream = 206,
		MESourceStopped = 207,
		MEStreamStopped = 208,
		MESourcePaused = 209,
		MEStreamPaused = 210,
		MEEndOfPresentation = 211,
		MEEndOfStream = 212,
		MEMediaSample = 213,
		MEStreamTick = 214,
		MEStreamThinMode = 215,
		MEStreamFormatChanged = 216,
		MESourceRateChanged = 217,
		MEEndOfPresentationSegment = 218,
		MESourceCharacteristicsChanged = 219,
		MESourceRateChangeRequested = 220,
		MESourceMetadataChanged = 221,
		MESequencerSourceTopologyUpdated = 222,
		MESinkUnknown = 300,
		MEStreamSinkStarted = 301,
		MEStreamSinkStopped = 302,
		MEStreamSinkPaused = 303,
		MEStreamSinkRateChanged = 304,
		MEStreamSinkRequestSample = 305,
		MEStreamSinkMarker = 306,
		MEStreamSinkPrerolled = 307,
		MEStreamSinkScrubSampleComplete = 308,
		MEStreamSinkFormatChanged = 309,
		MEStreamSinkDeviceChanged = 310,
		MEQualityNotify = 311,
		MESinkInvalidated = 312,
		MEAudioSessionNameChanged = 313,
		MEAudioSessionVolumeChanged = 314,
		MEAudioSessionDeviceRemoved = 315,
		MEAudioSessionServerShutdown = 316,
		MEAudioSessionGroupingParamChanged = 317,
		MEAudioSessionIconChanged = 318,
		MEAudioSessionFormatChanged = 319,
		MEAudioSessionDisconnected = 320,
		MEAudioSessionExclusiveModeOverride = 321,
		METrustUnknown = 400,
		MEPolicyChanged = 401,
		MEContentProtectionMessage = 402,
		MEPolicySet = 403,
		MEWMDRMLicenseBackupCompleted = 500,
		MEWMDRMLicenseBackupProgress = 501,
		MEWMDRMLicenseRestoreCompleted = 502,
		MEWMDRMLicenseRestoreProgress = 503,
		MEWMDRMLicenseAcquisitionCompleted = 506,
		MEWMDRMIndividualizationCompleted = 508,
		MEWMDRMIndividualizationProgress = 513,
		MEWMDRMProximityCompleted = 514,
		MEWMDRMLicenseStoreCleaned = 515,
		MEWMDRMRevocationDownloadCompleted = 516,
		METransformUnknown = 600,
		METransformNeedInput = 601,
		METransformHaveOutput = 602,
		METransformDrainComplete = 603,
		METransformMarker = 604
	}
	public static class MediaFoundationAttributes
	{
		public static readonly Guid MF_TRANSFORM_ASYNC = new Guid("f81a699a-649a-497d-8c73-29f8fed6ad7a");

		public static readonly Guid MF_TRANSFORM_ASYNC_UNLOCK = new Guid("e5666d6b-3422-4eb6-a421-da7db1f8e207");

		[FieldDescription("Transform Flags")]
		public static readonly Guid MF_TRANSFORM_FLAGS_Attribute = new Guid("9359bb7e-6275-46c4-a025-1c01e45f1a86");

		[FieldDescription("Transform Category")]
		public static readonly Guid MF_TRANSFORM_CATEGORY_Attribute = new Guid("ceabba49-506d-4757-a6ff-66c184987e4e");

		[FieldDescription("Class identifier")]
		public static readonly Guid MFT_TRANSFORM_CLSID_Attribute = new Guid("6821c42b-65a4-4e82-99bc-9a88205ecd0c");

		[FieldDescription("Container type")]
		public static readonly Guid MF_TRANSCODE_CONTAINERTYPE = new Guid(353366591, 19132, 18315, 172, 79, 225, 145, 111, 186, 28, 202);

		[FieldDescription("Input Types")]
		public static readonly Guid MFT_INPUT_TYPES_Attributes = new Guid("4276c9b1-759d-4bf3-9cd0-0d723d138f96");

		[FieldDescription("Output Types")]
		public static readonly Guid MFT_OUTPUT_TYPES_Attributes = new Guid("8eae8cf3-a44f-4306-ba5c-bf5dda242818");

		public static readonly Guid MFT_ENUM_HARDWARE_URL_Attribute = new Guid("2fb866ac-b078-4942-ab6c-003d05cda674");

		[FieldDescription("Name")]
		public static readonly Guid MFT_FRIENDLY_NAME_Attribute = new Guid("314ffbae-5b41-4c95-9c19-4e7d586face3");

		public static readonly Guid MFT_CONNECTED_STREAM_ATTRIBUTE = new Guid("71eeb820-a59f-4de2-bcec-38db1dd611a4");

		public static readonly Guid MFT_CONNECTED_TO_HW_STREAM = new Guid("34e6e728-06d6-4491-a553-4795650db912");

		[FieldDescription("Preferred Output Format")]
		public static readonly Guid MFT_PREFERRED_OUTPUTTYPE_Attribute = new Guid("7e700499-396a-49ee-b1b4-f628021e8c9d");

		public static readonly Guid MFT_PROCESS_LOCAL_Attribute = new Guid("543186e4-4649-4e65-b588-4aa352aff379");

		public static readonly Guid MFT_PREFERRED_ENCODER_PROFILE = new Guid("53004909-1ef5-46d7-a18e-5a75f8b5905f");

		public static readonly Guid MFT_HW_TIMESTAMP_WITH_QPC_Attribute = new Guid("8d030fb8-cc43-4258-a22e-9210bef89be4");

		public static readonly Guid MFT_FIELDOFUSE_UNLOCK_Attribute = new Guid("8ec2e9fd-9148-410d-831e-702439461a8e");

		public static readonly Guid MFT_CODEC_MERIT_Attribute = new Guid("88a7cb15-7b07-4a34-9128-e64c6703c4d3");

		public static readonly Guid MFT_ENUM_TRANSCODE_ONLY_ATTRIBUTE = new Guid("111ea8cd-b62a-4bdb-89f6-67ffcdc2458b");

		[FieldDescription("PMP Host Context")]
		public static readonly Guid MF_PD_PMPHOST_CONTEXT = new Guid("6c990d31-bb8e-477a-8598-0d5d96fcd88a");

		[FieldDescription("App Context")]
		public static readonly Guid MF_PD_APP_CONTEXT = new Guid("6c990d32-bb8e-477a-8598-0d5d96fcd88a");

		[FieldDescription("Duration")]
		public static readonly Guid MF_PD_DURATION = new Guid("6c990d33-bb8e-477a-8598-0d5d96fcd88a");

		[FieldDescription("Total File Size")]
		public static readonly Guid MF_PD_TOTAL_FILE_SIZE = new Guid("6c990d34-bb8e-477a-8598-0d5d96fcd88a");

		[FieldDescription("Audio encoding bitrate")]
		public static readonly Guid MF_PD_AUDIO_ENCODING_BITRATE = new Guid("6c990d35-bb8e-477a-8598-0d5d96fcd88a");

		[FieldDescription("Video Encoding Bitrate")]
		public static readonly Guid MF_PD_VIDEO_ENCODING_BITRATE = new Guid("6c990d36-bb8e-477a-8598-0d5d96fcd88a");

		[FieldDescription("MIME Type")]
		public static readonly Guid MF_PD_MIME_TYPE = new Guid("6c990d37-bb8e-477a-8598-0d5d96fcd88a");

		[FieldDescription("Last Modified Time")]
		public static readonly Guid MF_PD_LAST_MODIFIED_TIME = new Guid("6c990d38-bb8e-477a-8598-0d5d96fcd88a");

		[FieldDescription("Element ID")]
		public static readonly Guid MF_PD_PLAYBACK_ELEMENT_ID = new Guid("6c990d39-bb8e-477a-8598-0d5d96fcd88a");

		[FieldDescription("Preferred Language")]
		public static readonly Guid MF_PD_PREFERRED_LANGUAGE = new Guid("6c990d3a-bb8e-477a-8598-0d5d96fcd88a");

		[FieldDescription("Playback boundary time")]
		public static readonly Guid MF_PD_PLAYBACK_BOUNDARY_TIME = new Guid("6c990d3b-bb8e-477a-8598-0d5d96fcd88a");

		[FieldDescription("Audio is variable bitrate")]
		public static readonly Guid MF_PD_AUDIO_ISVARIABLEBITRATE = new Guid("33026ee0-e387-4582-ae0a-34a2ad3baa18");

		[FieldDescription("Major Media Type")]
		public static readonly Guid MF_MT_MAJOR_TYPE = new Guid("48eba18e-f8c9-4687-bf11-0a74c9f96a8f");

		[FieldDescription("Media Subtype")]
		public static readonly Guid MF_MT_SUBTYPE = new Guid("f7e34c9a-42e8-4714-b74b-cb29d72c35e5");

		[FieldDescription("Audio block alignment")]
		public static readonly Guid MF_MT_AUDIO_BLOCK_ALIGNMENT = new Guid("322de230-9eeb-43bd-ab7a-ff412251541d");

		[FieldDescription("Audio average bytes per second")]
		public static readonly Guid MF_MT_AUDIO_AVG_BYTES_PER_SECOND = new Guid("1aab75c8-cfef-451c-ab95-ac034b8e1731");

		[FieldDescription("Audio number of channels")]
		public static readonly Guid MF_MT_AUDIO_NUM_CHANNELS = new Guid("37e48bf5-645e-4c5b-89de-ada9e29b696a");

		[FieldDescription("Audio samples per second")]
		public static readonly Guid MF_MT_AUDIO_SAMPLES_PER_SECOND = new Guid("5faeeae7-0290-4c31-9e8a-c534f68d9dba");

		[FieldDescription("Audio bits per sample")]
		public static readonly Guid MF_MT_AUDIO_BITS_PER_SAMPLE = new Guid("f2deb57f-40fa-4764-aa33-ed4f2d1ff669");

		[FieldDescription("Enable Hardware Transforms")]
		public static readonly Guid MF_READWRITE_ENABLE_HARDWARE_TRANSFORMS = new Guid("a634a91c-822b-41b9-a494-4de4643612b0");

		[FieldDescription("Disable Sink Writer Throttling")]
		public static readonly Guid MF_SINK_WRITER_DISABLE_THROTTLING = new Guid("08b845d8-2b74-4afe-9d53-be16d2d5ae4f");

		[FieldDescription("User data")]
		public static readonly Guid MF_MT_USER_DATA = new Guid("b6bc765f-4c3b-40a4-bd51-2535b66fe09d");

		[FieldDescription("All samples independent")]
		public static readonly Guid MF_MT_ALL_SAMPLES_INDEPENDENT = new Guid("c9173739-5e56-461c-b713-46fb995cb95f");

		[FieldDescription("Fixed size samples")]
		public static readonly Guid MF_MT_FIXED_SIZE_SAMPLES = new Guid("b8ebefaf-b718-4e04-b0a9-116775e3321b");

		[FieldDescription("DirectShow Format Guid")]
		public static readonly Guid MF_MT_AM_FORMAT_TYPE = new Guid("73d1072d-1870-4174-a063-29ff4ff6c11e");

		[FieldDescription("Preferred legacy format structure")]
		public static readonly Guid MF_MT_AUDIO_PREFER_WAVEFORMATEX = new Guid("a901aaba-e037-458a-bdf6-545be2074042");

		[FieldDescription("Is Compressed")]
		public static readonly Guid MF_MT_COMPRESSED = new Guid("3afd0cee-18f2-4ba5-a110-8bea502e1f92");

		[FieldDescription("Average bitrate")]
		public static readonly Guid MF_MT_AVG_BITRATE = new Guid("20332624-fb0d-4d9e-bd0d-cbf6786c102e");

		[FieldDescription("AAC payload type")]
		public static readonly Guid MF_MT_AAC_PAYLOAD_TYPE = new Guid("bfbabe79-7434-4d1c-94f0-72a3b9e17188");

		[FieldDescription("AAC Audio Profile Level Indication")]
		public static readonly Guid MF_MT_AAC_AUDIO_PROFILE_LEVEL_INDICATION = new Guid("7632f0e6-9538-4d61-acda-ea29c8c14456");
	}
	public static class MediaFoundationErrors
	{
		public const int MF_E_PLATFORM_NOT_INITIALIZED = -1072875856;

		public const int MF_E_BUFFERTOOSMALL = -1072875855;

		public const int MF_E_INVALIDREQUEST = -1072875854;

		public const int MF_E_INVALIDSTREAMNUMBER = -1072875853;

		public const int MF_E_INVALIDMEDIATYPE = -1072875852;

		public const int MF_E_NOTACCEPTING = -1072875851;

		public const int MF_E_NOT_INITIALIZED = -1072875850;

		public const int MF_E_UNSUPPORTED_REPRESENTATION = -1072875849;

		public const int MF_E_NO_MORE_TYPES = -1072875847;

		public const int MF_E_UNSUPPORTED_SERVICE = -1072875846;

		public const int MF_E_UNEXPECTED = -1072875845;

		public const int MF_E_INVALIDNAME = -1072875844;

		public const int MF_E_INVALIDTYPE = -1072875843;

		public const int MF_E_INVALID_FILE_FORMAT = -1072875842;

		public const int MF_E_INVALIDINDEX = -1072875841;

		public const int MF_E_INVALID_TIMESTAMP = -1072875840;

		public const int MF_E_UNSUPPORTED_SCHEME = -1072875837;

		public const int MF_E_UNSUPPORTED_BYTESTREAM_TYPE = -1072875836;

		public const int MF_E_UNSUPPORTED_TIME_FORMAT = -1072875835;

		public const int MF_E_NO_SAMPLE_TIMESTAMP = -1072875832;

		public const int MF_E_NO_SAMPLE_DURATION = -1072875831;

		public const int MF_E_INVALID_STREAM_DATA = -1072875829;

		public const int MF_E_RT_UNAVAILABLE = -1072875825;

		public const int MF_E_UNSUPPORTED_RATE = -1072875824;

		public const int MF_E_THINNING_UNSUPPORTED = -1072875823;

		public const int MF_E_REVERSE_UNSUPPORTED = -1072875822;

		public const int MF_E_UNSUPPORTED_RATE_TRANSITION = -1072875821;

		public const int MF_E_RATE_CHANGE_PREEMPTED = -1072875820;

		public const int MF_E_NOT_FOUND = -1072875819;

		public const int MF_E_NOT_AVAILABLE = -1072875818;

		public const int MF_E_NO_CLOCK = -1072875817;

		public const int MF_S_MULTIPLE_BEGIN = 866008;

		public const int MF_E_MULTIPLE_BEGIN = -1072875815;

		public const int MF_E_MULTIPLE_SUBSCRIBERS = -1072875814;

		public const int MF_E_TIMER_ORPHANED = -1072875813;

		public const int MF_E_STATE_TRANSITION_PENDING = -1072875812;

		public const int MF_E_UNSUPPORTED_STATE_TRANSITION = -1072875811;

		public const int MF_E_UNRECOVERABLE_ERROR_OCCURRED = -1072875810;

		public const int MF_E_SAMPLE_HAS_TOO_MANY_BUFFERS = -1072875809;

		public const int MF_E_SAMPLE_NOT_WRITABLE = -1072875808;

		public const int MF_E_INVALID_KEY = -1072875806;

		public const int MF_E_BAD_STARTUP_VERSION = -1072875805;

		public const int MF_E_UNSUPPORTED_CAPTION = -1072875804;

		public const int MF_E_INVALID_POSITION = -1072875803;

		public const int MF_E_ATTRIBUTENOTFOUND = -1072875802;

		public const int MF_E_PROPERTY_TYPE_NOT_ALLOWED = -1072875801;

		public const int MF_E_PROPERTY_TYPE_NOT_SUPPORTED = -1072875800;

		public const int MF_E_PROPERTY_EMPTY = -1072875799;

		public const int MF_E_PROPERTY_NOT_EMPTY = -1072875798;

		public const int MF_E_PROPERTY_VECTOR_NOT_ALLOWED = -1072875797;

		public const int MF_E_PROPERTY_VECTOR_REQUIRED = -1072875796;

		public const int MF_E_OPERATION_CANCELLED = -1072875795;

		public const int MF_E_BYTESTREAM_NOT_SEEKABLE = -1072875794;

		public const int MF_E_DISABLED_IN_SAFEMODE = -1072875793;

		public const int MF_E_CANNOT_PARSE_BYTESTREAM = -1072875792;

		public const int MF_E_SOURCERESOLVER_MUTUALLY_EXCLUSIVE_FLAGS = -1072875791;

		public const int MF_E_MEDIAPROC_WRONGSTATE = -1072875790;

		public const int MF_E_RT_THROUGHPUT_NOT_AVAILABLE = -1072875789;

		public const int MF_E_RT_TOO_MANY_CLASSES = -1072875788;

		public const int MF_E_RT_WOULDBLOCK = -1072875787;

		public const int MF_E_NO_BITPUMP = -1072875786;

		public const int MF_E_RT_OUTOFMEMORY = -1072875785;

		public const int MF_E_RT_WORKQUEUE_CLASS_NOT_SPECIFIED = -1072875784;

		public const int MF_E_INSUFFICIENT_BUFFER = -1072860816;

		public const int MF_E_CANNOT_CREATE_SINK = -1072875782;

		public const int MF_E_BYTESTREAM_UNKNOWN_LENGTH = -1072875781;

		public const int MF_E_SESSION_PAUSEWHILESTOPPED = -1072875780;

		public const int MF_S_ACTIVATE_REPLACED = 866045;

		public const int MF_E_FORMAT_CHANGE_NOT_SUPPORTED = -1072875778;

		public const int MF_E_INVALID_WORKQUEUE = -1072875777;

		public const int MF_E_DRM_UNSUPPORTED = -1072875776;

		public const int MF_E_UNAUTHORIZED = -1072875775;

		public const int MF_E_OUT_OF_RANGE = -1072875774;

		public const int MF_E_INVALID_CODEC_MERIT = -1072875773;

		public const int MF_E_HW_MFT_FAILED_START_STREAMING = -1072875772;

		public const int MF_S_ASF_PARSEINPROGRESS = 1074608792;

		public const int MF_E_ASF_PARSINGINCOMPLETE = -1072874856;

		public const int MF_E_ASF_MISSINGDATA = -1072874855;

		public const int MF_E_ASF_INVALIDDATA = -1072874854;

		public const int MF_E_ASF_OPAQUEPACKET = -1072874853;

		public const int MF_E_ASF_NOINDEX = -1072874852;

		public const int MF_E_ASF_OUTOFRANGE = -1072874851;

		public const int MF_E_ASF_INDEXNOTLOADED = -1072874850;

		public const int MF_E_ASF_TOO_MANY_PAYLOADS = -1072874849;

		public const int MF_E_ASF_UNSUPPORTED_STREAM_TYPE = -1072874848;

		public const int MF_E_ASF_DROPPED_PACKET = -1072874847;

		public const int MF_E_NO_EVENTS_AVAILABLE = -1072873856;

		public const int MF_E_INVALID_STATE_TRANSITION = -1072873854;

		public const int MF_E_END_OF_STREAM = -1072873852;

		public const int MF_E_SHUTDOWN = -1072873851;

		public const int MF_E_MP3_NOTFOUND = -1072873850;

		public const int MF_E_MP3_OUTOFDATA = -1072873849;

		public const int MF_E_MP3_NOTMP3 = -1072873848;

		public const int MF_E_MP3_NOTSUPPORTED = -1072873847;

		public const int MF_E_NO_DURATION = -1072873846;

		public const int MF_E_INVALID_FORMAT = -1072873844;

		public const int MF_E_PROPERTY_NOT_FOUND = -1072873843;

		public const int MF_E_PROPERTY_READ_ONLY = -1072873842;

		public const int MF_E_PROPERTY_NOT_ALLOWED = -1072873841;

		public const int MF_E_MEDIA_SOURCE_NOT_STARTED = -1072873839;

		public const int MF_E_UNSUPPORTED_FORMAT = -1072873832;

		public const int MF_E_MP3_BAD_CRC = -1072873831;

		public const int MF_E_NOT_PROTECTED = -1072873830;

		public const int MF_E_MEDIA_SOURCE_WRONGSTATE = -1072873829;

		public const int MF_E_MEDIA_SOURCE_NO_STREAMS_SELECTED = -1072873828;

		public const int MF_E_CANNOT_FIND_KEYFRAME_SAMPLE = -1072873827;

		public const int MF_E_NETWORK_RESOURCE_FAILURE = -1072872856;

		public const int MF_E_NET_WRITE = -1072872855;

		public const int MF_E_NET_READ = -1072872854;

		public const int MF_E_NET_REQUIRE_NETWORK = -1072872853;

		public const int MF_E_NET_REQUIRE_ASYNC = -1072872852;

		public const int MF_E_NET_BWLEVEL_NOT_SUPPORTED = -1072872851;

		public const int MF_E_NET_STREAMGROUPS_NOT_SUPPORTED = -1072872850;

		public const int MF_E_NET_MANUALSS_NOT_SUPPORTED = -1072872849;

		public const int MF_E_NET_INVALID_PRESENTATION_DESCRIPTOR = -1072872848;

		public const int MF_E_NET_CACHESTREAM_NOT_FOUND = -1072872847;

		public const int MF_I_MANUAL_PROXY = 1074610802;

		public const int MF_E_NET_REQUIRE_INPUT = -1072872844;

		public const int MF_E_NET_REDIRECT = -1072872843;

		public const int MF_E_NET_REDIRECT_TO_PROXY = -1072872842;

		public const int MF_E_NET_TOO_MANY_REDIRECTS = -1072872841;

		public const int MF_E_NET_TIMEOUT = -1072872840;

		public const int MF_E_NET_CLIENT_CLOSE = -1072872839;

		public const int MF_E_NET_BAD_CONTROL_DATA = -1072872838;

		public const int MF_E_NET_INCOMPATIBLE_SERVER = -1072872837;

		public const int MF_E_NET_UNSAFE_URL = -1072872836;

		public const int MF_E_NET_CACHE_NO_DATA = -1072872835;

		public const int MF_E_NET_EOL = -1072872834;

		public const int MF_E_NET_BAD_REQUEST = -1072872833;

		public const int MF_E_NET_INTERNAL_SERVER_ERROR = -1072872832;

		public const int MF_E_NET_SESSION_NOT_FOUND = -1072872831;

		public const int MF_E_NET_NOCONNECTION = -1072872830;

		public const int MF_E_NET_CONNECTION_FAILURE = -1072872829;

		public const int MF_E_NET_INCOMPATIBLE_PUSHSERVER = -1072872828;

		public const int MF_E_NET_SERVER_ACCESSDENIED = -1072872827;

		public const int MF_E_NET_PROXY_ACCESSDENIED = -1072872826;

		public const int MF_E_NET_CANNOTCONNECT = -1072872825;

		public const int MF_E_NET_INVALID_PUSH_TEMPLATE = -1072872824;

		public const int MF_E_NET_INVALID_PUSH_PUBLISHING_POINT = -1072872823;

		public const int MF_E_NET_BUSY = -1072872822;

		public const int MF_E_NET_RESOURCE_GONE = -1072872821;

		public const int MF_E_NET_ERROR_FROM_PROXY = -1072872820;

		public const int MF_E_NET_PROXY_TIMEOUT = -1072872819;

		public const int MF_E_NET_SERVER_UNAVAILABLE = -1072872818;

		public const int MF_E_NET_TOO_MUCH_DATA = -1072872817;

		public const int MF_E_NET_SESSION_INVALID = -1072872816;

		public const int MF_E_OFFLINE_MODE = -1072872815;

		public const int MF_E_NET_UDP_BLOCKED = -1072872814;

		public const int MF_E_NET_UNSUPPORTED_CONFIGURATION = -1072872813;

		public const int MF_E_NET_PROTOCOL_DISABLED = -1072872812;

		public const int MF_E_ALREADY_INITIALIZED = -1072871856;

		public const int MF_E_BANDWIDTH_OVERRUN = -1072871855;

		public const int MF_E_LATE_SAMPLE = -1072871854;

		public const int MF_E_FLUSH_NEEDED = -1072871853;

		public const int MF_E_INVALID_PROFILE = -1072871852;

		public const int MF_E_INDEX_NOT_COMMITTED = -1072871851;

		public const int MF_E_NO_INDEX = -1072871850;

		public const int MF_E_CANNOT_INDEX_IN_PLACE = -1072871849;

		public const int MF_E_MISSING_ASF_LEAKYBUCKET = -1072871848;

		public const int MF_E_INVALID_ASF_STREAMID = -1072871847;

		public const int MF_E_STREAMSINK_REMOVED = -1072870856;

		public const int MF_E_STREAMSINKS_OUT_OF_SYNC = -1072870854;

		public const int MF_E_STREAMSINKS_FIXED = -1072870853;

		public const int MF_E_STREAMSINK_EXISTS = -1072870852;

		public const int MF_E_SAMPLEALLOCATOR_CANCELED = -1072870851;

		public const int MF_E_SAMPLEALLOCATOR_EMPTY = -1072870850;

		public const int MF_E_SINK_ALREADYSTOPPED = -1072870849;

		public const int MF_E_ASF_FILESINK_BITRATE_UNKNOWN = -1072870848;

		public const int MF_E_SINK_NO_STREAMS = -1072870847;

		public const int MF_S_SINK_NOT_FINALIZED = 870978;

		public const int MF_E_METADATA_TOO_LONG = -1072870845;

		public const int MF_E_SINK_NO_SAMPLES_PROCESSED = -1072870844;

		public const int MF_E_VIDEO_REN_NO_PROCAMP_HW = -1072869856;

		public const int MF_E_VIDEO_REN_NO_DEINTERLACE_HW = -1072869855;

		public const int MF_E_VIDEO_REN_COPYPROT_FAILED = -1072869854;

		public const int MF_E_VIDEO_REN_SURFACE_NOT_SHARED = -1072869853;

		public const int MF_E_VIDEO_DEVICE_LOCKED = -1072869852;

		public const int MF_E_NEW_VIDEO_DEVICE = -1072869851;

		public const int MF_E_NO_VIDEO_SAMPLE_AVAILABLE = -1072869850;

		public const int MF_E_NO_AUDIO_PLAYBACK_DEVICE = -1072869756;

		public const int MF_E_AUDIO_PLAYBACK_DEVICE_IN_USE = -1072869755;

		public const int MF_E_AUDIO_PLAYBACK_DEVICE_INVALIDATED = -1072869754;

		public const int MF_E_AUDIO_SERVICE_NOT_RUNNING = -1072869753;

		public const int MF_E_TOPO_INVALID_OPTIONAL_NODE = -1072868850;

		public const int MF_E_TOPO_CANNOT_FIND_DECRYPTOR = -1072868847;

		public const int MF_E_TOPO_CODEC_NOT_FOUND = -1072868846;

		public const int MF_E_TOPO_CANNOT_CONNECT = -1072868845;

		public const int MF_E_TOPO_UNSUPPORTED = -1072868844;

		public const int MF_E_TOPO_INVALID_TIME_ATTRIBUTES = -1072868843;

		public const int MF_E_TOPO_LOOPS_IN_TOPOLOGY = -1072868842;

		public const int MF_E_TOPO_MISSING_PRESENTATION_DESCRIPTOR = -1072868841;

		public const int MF_E_TOPO_MISSING_STREAM_DESCRIPTOR = -1072868840;

		public const int MF_E_TOPO_STREAM_DESCRIPTOR_NOT_SELECTED = -1072868839;

		public const int MF_E_TOPO_MISSING_SOURCE = -1072868838;

		public const int MF_E_TOPO_SINK_ACTIVATES_UNSUPPORTED = -1072868837;

		public const int MF_E_SEQUENCER_UNKNOWN_SEGMENT_ID = -1072864852;

		public const int MF_S_SEQUENCER_CONTEXT_CANCELED = 876973;

		public const int MF_E_NO_SOURCE_IN_CACHE = -1072864850;

		public const int MF_S_SEQUENCER_SEGMENT_AT_END_OF_STREAM = 876975;

		public const int MF_E_TRANSFORM_TYPE_NOT_SET = -1072861856;

		public const int MF_E_TRANSFORM_STREAM_CHANGE = -1072861855;

		public const int MF_E_TRANSFORM_INPUT_REMAINING = -1072861854;

		public const int MF_E_TRANSFORM_PROFILE_MISSING = -1072861853;

		public const int MF_E_TRANSFORM_PROFILE_INVALID_OR_CORRUPT = -1072861852;

		public const int MF_E_TRANSFORM_PROFILE_TRUNCATED = -1072861851;

		public const int MF_E_TRANSFORM_PROPERTY_PID_NOT_RECOGNIZED = -1072861850;

		public const int MF_E_TRANSFORM_PROPERTY_VARIANT_TYPE_WRONG = -1072861849;

		public const int MF_E_TRANSFORM_PROPERTY_NOT_WRITEABLE = -1072861848;

		public const int MF_E_TRANSFORM_PROPERTY_ARRAY_VALUE_WRONG_NUM_DIM = -1072861847;

		public const int MF_E_TRANSFORM_PROPERTY_VALUE_SIZE_WRONG = -1072861846;

		public const int MF_E_TRANSFORM_PROPERTY_VALUE_OUT_OF_RANGE = -1072861845;

		public const int MF_E_TRANSFORM_PROPERTY_VALUE_INCOMPATIBLE = -1072861844;

		public const int MF_E_TRANSFORM_NOT_POSSIBLE_FOR_CURRENT_OUTPUT_MEDIATYPE = -1072861843;

		public const int MF_E_TRANSFORM_NOT_POSSIBLE_FOR_CURRENT_INPUT_MEDIATYPE = -1072861842;

		public const int MF_E_TRANSFORM_NOT_POSSIBLE_FOR_CURRENT_MEDIATYPE_COMBINATION = -1072861841;

		public const int MF_E_TRANSFORM_CONFLICTS_WITH_OTHER_CURRENTLY_ENABLED_FEATURES = -1072861840;

		public const int MF_E_TRANSFORM_NEED_MORE_INPUT = -1072861838;

		public const int MF_E_TRANSFORM_NOT_POSSIBLE_FOR_CURRENT_SPKR_CONFIG = -1072861837;

		public const int MF_E_TRANSFORM_CANNOT_CHANGE_MEDIATYPE_WHILE_PROCESSING = -1072861836;

		public const int MF_S_TRANSFORM_DO_NOT_PROPAGATE_EVENT = 879989;

		public const int MF_E_UNSUPPORTED_D3D_TYPE = -1072861834;

		public const int MF_E_TRANSFORM_ASYNC_LOCKED = -1072861833;

		public const int MF_E_TRANSFORM_CANNOT_INITIALIZE_ACM_DRIVER = -1072861832;

		public const int MF_E_LICENSE_INCORRECT_RIGHTS = -1072860856;

		public const int MF_E_LICENSE_OUTOFDATE = -1072860855;

		public const int MF_E_LICENSE_REQUIRED = -1072860854;

		public const int MF_E_DRM_HARDWARE_INCONSISTENT = -1072860853;

		public const int MF_E_NO_CONTENT_PROTECTION_MANAGER = -1072860852;

		public const int MF_E_LICENSE_RESTORE_NO_RIGHTS = -1072860851;

		public const int MF_E_BACKUP_RESTRICTED_LICENSE = -1072860850;

		public const int MF_E_LICENSE_RESTORE_NEEDS_INDIVIDUALIZATION = -1072860849;

		public const int MF_S_PROTECTION_NOT_REQUIRED = 880976;

		public const int MF_E_COMPONENT_REVOKED = -1072860847;

		public const int MF_E_TRUST_DISABLED = -1072860846;

		public const int MF_E_WMDRMOTA_NO_ACTION = -1072860845;

		public const int MF_E_WMDRMOTA_ACTION_ALREADY_SET = -1072860844;

		public const int MF_E_WMDRMOTA_DRM_HEADER_NOT_AVAILABLE = -1072860843;

		public const int MF_E_WMDRMOTA_DRM_ENCRYPTION_SCHEME_NOT_SUPPORTED = -1072860842;

		public const int MF_E_WMDRMOTA_ACTION_MISMATCH = -1072860841;

		public const int MF_E_WMDRMOTA_INVALID_POLICY = -1072860840;

		public const int MF_E_POLICY_UNSUPPORTED = -1072860839;

		public const int MF_E_OPL_NOT_SUPPORTED = -1072860838;

		public const int MF_E_TOPOLOGY_VERIFICATION_FAILED = -1072860837;

		public const int MF_E_SIGNATURE_VERIFICATION_FAILED = -1072860836;

		public const int MF_E_DEBUGGING_NOT_ALLOWED = -1072860835;

		public const int MF_E_CODE_EXPIRED = -1072860834;

		public const int MF_E_GRL_VERSION_TOO_LOW = -1072860833;

		public const int MF_E_GRL_RENEWAL_NOT_FOUND = -1072860832;

		public const int MF_E_GRL_EXTENSIBLE_ENTRY_NOT_FOUND = -1072860831;

		public const int MF_E_KERNEL_UNTRUSTED = -1072860830;

		public const int MF_E_PEAUTH_UNTRUSTED = -1072860829;

		public const int MF_E_NON_PE_PROCESS = -1072860827;

		public const int MF_E_REBOOT_REQUIRED = -1072860825;

		public const int MF_S_WAIT_FOR_POLICY_SET = 881000;

		public const int MF_S_VIDEO_DISABLED_WITH_UNKNOWN_SOFTWARE_OUTPUT = 881001;

		public const int MF_E_GRL_INVALID_FORMAT = -1072860822;

		public const int MF_E_GRL_UNRECOGNIZED_FORMAT = -1072860821;

		public const int MF_E_ALL_PROCESS_RESTART_REQUIRED = -1072860820;

		public const int MF_E_PROCESS_RESTART_REQUIRED = -1072860819;

		public const int MF_E_USERMODE_UNTRUSTED = -1072860818;

		public const int MF_E_PEAUTH_SESSION_NOT_STARTED = -1072860817;

		public const int MF_E_PEAUTH_PUBLICKEY_REVOKED = -1072860815;

		public const int MF_E_GRL_ABSENT = -1072860814;

		public const int MF_S_PE_TRUSTED = 881011;

		public const int MF_E_PE_UNTRUSTED = -1072860812;

		public const int MF_E_PEAUTH_NOT_STARTED = -1072860811;

		public const int MF_E_INCOMPATIBLE_SAMPLE_PROTECTION = -1072860810;

		public const int MF_E_PE_SESSIONS_MAXED = -1072860809;

		public const int MF_E_HIGH_SECURITY_LEVEL_CONTENT_NOT_ALLOWED = -1072860808;

		public const int MF_E_TEST_SIGNED_COMPONENTS_NOT_ALLOWED = -1072860807;

		public const int MF_E_ITA_UNSUPPORTED_ACTION = -1072860806;

		public const int MF_E_ITA_ERROR_PARSING_SAP_PARAMETERS = -1072860805;

		public const int MF_E_POLICY_MGR_ACTION_OUTOFBOUNDS = -1072860804;

		public const int MF_E_BAD_OPL_STRUCTURE_FORMAT = -1072860803;

		public const int MF_E_ITA_UNRECOGNIZED_ANALOG_VIDEO_PROTECTION_GUID = -1072860802;

		public const int MF_E_NO_PMP_HOST = -1072860801;

		public const int MF_E_ITA_OPL_DATA_NOT_INITIALIZED = -1072860800;

		public const int MF_E_ITA_UNRECOGNIZED_ANALOG_VIDEO_OUTPUT = -1072860799;

		public const int MF_E_ITA_UNRECOGNIZED_DIGITAL_VIDEO_OUTPUT = -1072860798;

		public const int MF_E_CLOCK_INVALID_CONTINUITY_KEY = -1072849856;

		public const int MF_E_CLOCK_NO_TIME_SOURCE = -1072849855;

		public const int MF_E_CLOCK_STATE_ALREADY_SET = -1072849854;

		public const int MF_E_CLOCK_NOT_SIMPLE = -1072849853;

		public const int MF_S_CLOCK_STOPPED = 891972;

		public const int MF_E_NO_MORE_DROP_MODES = -1072848856;

		public const int MF_E_NO_MORE_QUALITY_LEVELS = -1072848855;

		public const int MF_E_DROPTIME_NOT_SUPPORTED = -1072848854;

		public const int MF_E_QUALITYKNOB_WAIT_LONGER = -1072848853;

		public const int MF_E_QM_INVALIDSTATE = -1072848852;

		public const int MF_E_TRANSCODE_NO_CONTAINERTYPE = -1072847856;

		public const int MF_E_TRANSCODE_PROFILE_NO_MATCHING_STREAMS = -1072847855;

		public const int MF_E_TRANSCODE_NO_MATCHING_ENCODER = -1072847854;

		public const int MF_E_ALLOCATOR_NOT_INITIALIZED = -1072846856;

		public const int MF_E_ALLOCATOR_NOT_COMMITED = -1072846855;

		public const int MF_E_ALLOCATOR_ALREADY_COMMITED = -1072846854;

		public const int MF_E_STREAM_ERROR = -1072846853;

		public const int MF_E_INVALID_STREAM_STATE = -1072846852;

		public const int MF_E_HW_STREAM_NOT_CONNECTED = -1072846851;
	}
	public static class MediaFoundationApi
	{
		private static bool initialized;

		public static void Startup()
		{
			if (!initialized)
			{
				int num = 2;
				OperatingSystem oSVersion = Environment.OSVersion;
				if (oSVersion.Version.Major == 6 && oSVersion.Version.Minor == 0)
				{
					num = 1;
				}
				MediaFoundationInterop.MFStartup((num << 16) | 0x70);
				initialized = true;
			}
		}

		public static IEnumerable<IMFActivate> EnumerateTransforms(Guid category)
		{
			MediaFoundationInterop.MFTEnumEx(category, _MFT_ENUM_FLAG.MFT_ENUM_FLAG_ALL, null, null, out var interfacesPointer, out var pcMFTActivate);
			IMFActivate[] array = new IMFActivate[pcMFTActivate];
			for (int i = 0; i < pcMFTActivate; i++)
			{
				IntPtr pUnk = Marshal.ReadIntPtr(new IntPtr(interfacesPointer.ToInt64() + i * Marshal.SizeOf(interfacesPointer)));
				array[i] = (IMFActivate)Marshal.GetObjectForIUnknown(pUnk);
			}
			IMFActivate[] array2 = array;
			for (int j = 0; j < array2.Length; j++)
			{
				yield return array2[j];
			}
			Marshal.FreeCoTaskMem(interfacesPointer);
		}

		public static void Shutdown()
		{
			if (initialized)
			{
				MediaFoundationInterop.MFShutdown();
				initialized = false;
			}
		}

		public static IMFMediaType CreateMediaType()
		{
			MediaFoundationInterop.MFCreateMediaType(out var ppMFType);
			return ppMFType;
		}

		public static IMFMediaType CreateMediaTypeFromWaveFormat(WaveFormat waveFormat)
		{
			IMFMediaType iMFMediaType = CreateMediaType();
			try
			{
				MediaFoundationInterop.MFInitMediaTypeFromWaveFormatEx(iMFMediaType, waveFormat, Marshal.SizeOf<WaveFormat>(waveFormat));
				return iMFMediaType;
			}
			catch (Exception)
			{
				Marshal.ReleaseComObject(iMFMediaType);
				throw;
			}
		}

		public static IMFMediaBuffer CreateMemoryBuffer(int bufferSize)
		{
			MediaFoundationInterop.MFCreateMemoryBuffer(bufferSize, out var ppBuffer);
			return ppBuffer;
		}

		public static IMFSample CreateSample()
		{
			MediaFoundationInterop.MFCreateSample(out var ppIMFSample);
			return ppIMFSample;
		}

		public static IMFAttributes CreateAttributes(int initialSize)
		{
			MediaFoundationInterop.MFCreateAttributes(out var ppMFAttributes, initialSize);
			return ppMFAttributes;
		}

		public static IMFByteStream CreateByteStream(object stream)
		{
			if (stream is IStream)
			{
				MediaFoundationInterop.MFCreateMFByteStreamOnStream(stream as IStream, out var ppByteStream);
				return ppByteStream;
			}
			throw new ArgumentException("Stream must be IStream in desktop apps");
		}

		public static IMFSourceReader CreateSourceReaderFromByteStream(IMFByteStream byteStream)
		{
			MediaFoundationInterop.MFCreateSourceReaderFromByteStream(byteStream, null, out var ppSourceReader);
			return ppSourceReader;
		}
	}
	public static class MediaFoundationInterop
	{
		public const int MF_SOURCE_READER_ALL_STREAMS = -2;

		public const int MF_SOURCE_READER_FIRST_AUDIO_STREAM = -3;

		public const int MF_SOURCE_READER_FIRST_VIDEO_STREAM = -4;

		public const int MF_SOURCE_READER_MEDIASOURCE = -1;

		public const int MF_SDK_VERSION = 2;

		public const int MF_API_VERSION = 112;

		public const int MF_VERSION = 131184;

		[DllImport("mfplat.dll", ExactSpelling = true, PreserveSig = false)]
		public static extern void MFStartup(int version, int dwFlags = 0);

		[DllImport("mfplat.dll", ExactSpelling = true, PreserveSig = false)]
		public static extern void MFShutdown();

		[DllImport("mfplat.dll", ExactSpelling = true, PreserveSig = false)]
		internal static extern void MFCreateMediaType(out IMFMediaType ppMFType);

		[DllImport("mfplat.dll", ExactSpelling = true, PreserveSig = false)]
		internal static extern void MFInitMediaTypeFromWaveFormatEx([In] IMFMediaType pMFType, [In] WaveFormat pWaveFormat, [In] int cbBufSize);

		[DllImport("mfplat.dll", ExactSpelling = true, PreserveSig = false)]
		internal static extern void MFCreateWaveFormatExFromMFMediaType(IMFMediaType pMFType, ref IntPtr ppWF, ref int pcbSize, int flags = 0);

		[DllImport("mfreadwrite.dll", ExactSpelling = true, PreserveSig = false)]
		public static extern void MFCreateSourceReaderFromURL([In][MarshalAs(UnmanagedType.LPWStr)] string pwszURL, [In] IMFAttributes pAttributes, [MarshalAs(UnmanagedType.Interface)] out IMFSourceReader ppSourceReader);

		[DllImport("mfreadwrite.dll", ExactSpelling = true, PreserveSig = false)]
		public static extern void MFCreateSourceReaderFromByteStream([In] IMFByteStream pByteStream, [In] IMFAttributes pAttributes, [MarshalAs(UnmanagedType.Interface)] out IMFSourceReader ppSourceReader);

		[DllImport("mfreadwrite.dll", ExactSpelling = true, PreserveSig = false)]
		public static extern void MFCreateSinkWriterFromURL([In][MarshalAs(UnmanagedType.LPWStr)] string pwszOutputURL, [In] IMFByteStream pByteStream, [In] IMFAttributes pAttributes, out IMFSinkWriter ppSinkWriter);

		[DllImport("mfplat.dll", ExactSpelling = true, PreserveSig = false)]
		public static extern void MFCreateMFByteStreamOnStreamEx([MarshalAs(UnmanagedType.IUnknown)] object punkStream, out IMFByteStream ppByteStream);

		[DllImport("mfplat.dll", ExactSpelling = true, PreserveSig = false)]
		public static extern void MFCreateMFByteStreamOnStream([In] IStream punkStream, out IMFByteStream ppByteStream);

		[DllImport("mfplat.dll", ExactSpelling = true, PreserveSig = false)]
		public static extern void MFTEnumEx([In] Guid guidCategory, [In] _MFT_ENUM_FLAG flags, [In] MFT_REGISTER_TYPE_INFO pInputType, [In] MFT_REGISTER_TYPE_INFO pOutputType, out IntPtr pppMFTActivate, out int pcMFTActivate);

		[DllImport("mfplat.dll", ExactSpelling = true, PreserveSig = false)]
		internal static extern void MFCreateSample(out IMFSample ppIMFSample);

		[DllImport("mfplat.dll", ExactSpelling = true, PreserveSig = false)]
		internal static extern void MFCreateMemoryBuffer(int cbMaxLength, out IMFMediaBuffer ppBuffer);

		[DllImport("mfplat.dll", ExactSpelling = true, PreserveSig = false)]
		internal static extern void MFCreateAttributes([MarshalAs(UnmanagedType.Interface)] out IMFAttributes ppMFAttributes, [In] int cInitialSize);

		[DllImport("mf.dll", ExactSpelling = true, PreserveSig = false)]
		public static extern void MFTranscodeGetAudioOutputAvailableTypes([In][MarshalAs(UnmanagedType.LPStruct)] Guid guidSubType, [In] _MFT_ENUM_FLAG dwMFTFlags, [In] IMFAttributes pCodecConfig, [MarshalAs(UnmanagedType.Interface)] out IMFCollection ppAvailableTypes);
	}
	public abstract class MediaFoundationTransform : IWaveProvider, IDisposable
	{
		protected readonly IWaveProvider sourceProvider;

		protected readonly WaveFormat outputWaveFormat;

		private readonly byte[] sourceBuffer;

		private byte[] outputBuffer;

		private int outputBufferOffset;

		private int outputBufferCount;

		private IMFTransform transform;

		private bool disposed;

		private long inputPosition;

		private long outputPosition;

		private bool initializedForStreaming;

		public WaveFormat WaveFormat => outputWaveFormat;

		public MediaFoundationTransform(IWaveProvider sourceProvider, WaveFormat outputFormat)
		{
			outputWaveFormat = outputFormat;
			this.sourceProvider = sourceProvider;
			sourceBuffer = new byte[sourceProvider.WaveFormat.AverageBytesPerSecond];
			outputBuffer = new byte[outputWaveFormat.AverageBytesPerSecond + outputWaveFormat.BlockAlign];
		}

		private void InitializeTransformForStreaming()
		{
			transform.ProcessMessage(MFT_MESSAGE_TYPE.MFT_MESSAGE_COMMAND_FLUSH, IntPtr.Zero);
			transform.ProcessMessage(MFT_MESSAGE_TYPE.MFT_MESSAGE_NOTIFY_BEGIN_STREAMING, IntPtr.Zero);
			transform.ProcessMessage(MFT_MESSAGE_TYPE.MFT_MESSAGE_NOTIFY_START_OF_STREAM, IntPtr.Zero);
			initializedForStreaming = true;
		}

		protected abstract IMFTransform CreateTransform();

		protected virtual void Dispose(bool disposing)
		{
			if (transform != null)
			{
				Marshal.ReleaseComObject(transform);
			}
		}

		public void Dispose()
		{
			if (!disposed)
			{
				disposed = true;
				Dispose(disposing: true);
				GC.SuppressFinalize(this);
			}
		}

		~MediaFoundationTransform()
		{
			Dispose(disposing: false);
		}

		public int Read(byte[] buffer, int offset, int count)
		{
			if (transform == null)
			{
				transform = CreateTransform();
				InitializeTransformForStreaming();
			}
			int i = 0;
			if (outputBufferCount > 0)
			{
				i += ReadFromOutputBuffer(buffer, offset, count - i);
			}
			for (; i < count; i += ReadFromOutputBuffer(buffer, offset + i, count - i))
			{
				IMFSample iMFSample = ReadFromSource();
				if (iMFSample == null)
				{
					EndStreamAndDrain();
					i += ReadFromOutputBuffer(buffer, offset + i, count - i);
					ClearOutputBuffer();
					break;
				}
				if (!initializedForStreaming)
				{
					InitializeTransformForStreaming();
				}
				transform.ProcessInput(0, iMFSample, 0);
				Marshal.ReleaseComObject(iMFSample);
				ReadFromTransform();
			}
			return i;
		}

		private void EndStreamAndDrain()
		{
			transform.ProcessMessage(MFT_MESSAGE_TYPE.MFT_MESSAGE_NOTIFY_END_OF_STREAM, IntPtr.Zero);
			transform.ProcessMessage(MFT_MESSAGE_TYPE.MFT_MESSAGE_COMMAND_DRAIN, IntPtr.Zero);
			int num;
			do
			{
				num = ReadFromTransform();
			}
			while (num > 0);
			inputPosition = 0L;
			outputPosition = 0L;
			transform.ProcessMessage(MFT_MESSAGE_TYPE.MFT_MESSAGE_NOTIFY_END_STREAMING, IntPtr.Zero);
			initializedForStreaming = false;
		}

		private void ClearOutputBuffer()
		{
			outputBufferCount = 0;
			outputBufferOffset = 0;
		}

		private int ReadFromTransform()
		{
			MFT_OUTPUT_DATA_BUFFER[] array = new MFT_OUTPUT_DATA_BUFFER[1];
			IMFSample iMFSample = MediaFoundationApi.CreateSample();
			IMFMediaBuffer iMFMediaBuffer = MediaFoundationApi.CreateMemoryBuffer(outputBuffer.Length);
			iMFSample.AddBuffer(iMFMediaBuffer);
			iMFSample.SetSampleTime(outputPosition);
			array[0].pSample = iMFSample;
			_MFT_PROCESS_OUTPUT_STATUS pdwStatus;
			int num = transform.ProcessOutput(_MFT_PROCESS_OUTPUT_FLAGS.None, 1, array, out pdwStatus);
			switch (num)
			{
			case -1072861838:
				Marshal.ReleaseComObject(iMFMediaBuffer);
				Marshal.ReleaseComObject(iMFSample);
				return 0;
			default:
				Marshal.ThrowExceptionForHR(num);
				break;
			case 0:
				break;
			}
			array[0].pSample.ConvertToContiguousBuffer(out var ppBuffer);
			ppBuffer.Lock(out var ppbBuffer, out var _, out var pcbCurrentLength);
			outputBuffer = BufferHelpers.Ensure(outputBuffer, pcbCurrentLength);
			Marshal.Copy(ppbBuffer, outputBuffer, 0, pcbCurrentLength);
			outputBufferOffset = 0;
			outputBufferCount = pcbCurrentLength;
			ppBuffer.Unlock();
			outputPosition += BytesToNsPosition(outputBufferCount, WaveFormat);
			Marshal.ReleaseComObject(iMFMediaBuffer);
			iMFSample.RemoveAllBuffers();
			Marshal.ReleaseComObject(iMFSample);
			Marshal.ReleaseComObject(ppBuffer);
			return pcbCurrentLength;
		}

		private static long BytesToNsPosition(int bytes, WaveFormat waveFormat)
		{
			return 10000000L * (long)bytes / waveFormat.AverageBytesPerSecond;
		}

		private IMFSample ReadFromSource()
		{
			int num = sourceProvider.Read(sourceBuffer, 0, sourceBuffer.Length);
			if (num == 0)
			{
				return null;
			}
			IMFMediaBuffer iMFMediaBuffer = MediaFoundationApi.CreateMemoryBuffer(num);
			iMFMediaBuffer.Lock(out var ppbBuffer, out var _, out var _);
			Marshal.Copy(sourceBuffer, 0, ppbBuffer, num);
			iMFMediaBuffer.Unlock();
			iMFMediaBuffer.SetCurrentLength(num);
			IMFSample iMFSample = MediaFoundationApi.CreateSample();
			iMFSample.AddBuffer(iMFMediaBuffer);
			iMFSample.SetSampleTime(inputPosition);
			long num2 = BytesToNsPosition(num, sourceProvider.WaveFormat);
			iMFSample.SetSampleDuration(num2);
			inputPosition += num2;
			Marshal.ReleaseComObject(iMFMediaBuffer);
			return iMFSample;
		}

		private int ReadFromOutputBuffer(byte[] buffer, int offset, int needed)
		{
			int num = Math.Min(needed, outputBufferCount);
			Array.Copy(outputBuffer, outputBufferOffset, buffer, offset, num);
			outputBufferOffset += num;
			outputBufferCount -= num;
			if (outputBufferCount == 0)
			{
				outputBufferOffset = 0;
			}
			return num;
		}

		public void Reposition()
		{
			if (initializedForStreaming)
			{
				EndStreamAndDrain();
				ClearOutputBuffer();
				InitializeTransformForStreaming();
			}
		}
	}
	public static class MediaFoundationTransformCategories
	{
		[FieldDescription("Video Decoder")]
		public static readonly Guid VideoDecoder = new Guid("{d6c02d4b-6833-45b4-971a-05a4b04bab91}");

		[FieldDescription("Video Encoder")]
		public static readonly Guid VideoEncoder = new Guid("{f79eac7d-e545-4387-bdee-d647d7bde42a}");

		[FieldDescription("Video Effect")]
		public static readonly Guid VideoEffect = new Guid("{12e17c21-532c-4a6e-8a1c-40825a736397}");

		[FieldDescription("Multiplexer")]
		public static readonly Guid Multiplexer = new Guid("{059c561e-05ae-4b61-b69d-55b61ee54a7b}");

		[FieldDescription("Demultiplexer")]
		public static readonly Guid Demultiplexer = new Guid("{a8700a7a-939b-44c5-99d7-76226b23b3f1}");

		[FieldDescription("Audio Decoder")]
		public static readonly Guid AudioDecoder = new Guid("{9ea73fb4-ef7a-4559-8d5d-719d8f0426c7}");

		[FieldDescription("Audio Encoder")]
		public static readonly Guid AudioEncoder = new Guid("{91c64bd0-f91e-4d8c-9276-db248279d975}");

		[FieldDescription("Audio Effect")]
		public static readonly Guid AudioEffect = new Guid("{11064c48-3648-4ed0-932e-05ce8ac811b7}");

		[FieldDescription("Video Processor")]
		public static readonly Guid VideoProcessor = new Guid("{302EA3FC-AA5F-47f9-9F7A-C2188BB16302}");

		[FieldDescription("Other")]
		public static readonly Guid Other = new Guid("{90175d57-b7ea-4901-aeb3-933a8747756f}");
	}
	public class MediaType
	{
		private readonly IMFMediaType mediaType;

		public int SampleRate
		{
			get
			{
				return GetUInt32(MediaFoundationAttributes.MF_MT_AUDIO_SAMPLES_PER_SECOND);
			}
			set
			{
				mediaType.SetUINT32(MediaFoundationAttributes.MF_MT_AUDIO_SAMPLES_PER_SECOND, value);
			}
		}

		public int ChannelCount
		{
			get
			{
				return GetUInt32(MediaFoundationAttributes.MF_MT_AUDIO_NUM_CHANNELS);
			}
			set
			{
				mediaType.SetUINT32(MediaFoundationAttributes.MF_MT_AUDIO_NUM_CHANNELS, value);
			}
		}

		public int BitsPerSample
		{
			get
			{
				return GetUInt32(MediaFoundationAttributes.MF_MT_AUDIO_BITS_PER_SAMPLE);
			}
			set
			{
				mediaType.SetUINT32(MediaFoundationAttributes.MF_MT_AUDIO_BITS_PER_SAMPLE, value);
			}
		}

		public int AverageBytesPerSecond => GetUInt32(MediaFoundationAttributes.MF_MT_AUDIO_AVG_BYTES_PER_SECOND);

		public Guid SubType
		{
			get
			{
				return GetGuid(MediaFoundationAttributes.MF_MT_SUBTYPE);
			}
			set
			{
				mediaType.SetGUID(MediaFoundationAttributes.MF_MT_SUBTYPE, value);
			}
		}

		public Guid MajorType
		{
			get
			{
				return GetGuid(MediaFoundationAttributes.MF_MT_MAJOR_TYPE);
			}
			set
			{
				mediaType.SetGUID(MediaFoundationAttributes.MF_MT_MAJOR_TYPE, value);
			}
		}

		public IMFMediaType MediaFoundationObject => mediaType;

		public MediaType(IMFMediaType mediaType)
		{
			this.mediaType = mediaType;
		}

		public MediaType()
		{
			mediaType = MediaFoundationApi.CreateMediaType();
		}

		public MediaType(WaveFormat waveFormat)
		{
			mediaType = MediaFoundationApi.CreateMediaTypeFromWaveFormat(waveFormat);
		}

		private int GetUInt32(Guid key)
		{
			mediaType.GetUINT32(key, out var punValue);
			return punValue;
		}

		private Guid GetGuid(Guid key)
		{
			mediaType.GetGUID(key, out var pguidValue);
			return pguidValue;
		}

		public int TryGetUInt32(Guid key, int defaultValue = -1)
		{
			int punValue = defaultValue;
			try
			{
				mediaType.GetUINT32(key, out punValue);
			}
			catch (COMException ex)
			{
				if (HResult.GetHResult(ex) != -1072875802)
				{
					if (HResult.GetHResult(ex) == -1072875843)
					{
						throw new ArgumentException("Not a UINT32 parameter");
					}
					throw;
				}
			}
			return punValue;
		}

		public void SetUInt32(Guid key, int value)
		{
			mediaType.SetUINT32(key, value);
		}
	}
	public static class MediaTypes
	{
		public static readonly Guid MFMediaType_Default = new Guid("81A412E6-8103-4B06-857F-1862781024AC");

		[FieldDescription("Audio")]
		public static readonly Guid MFMediaType_Audio = new Guid("73647561-0000-0010-8000-00aa00389b71");

		[FieldDescription("Video")]
		public static readonly Guid MFMediaType_Video = new Guid("73646976-0000-0010-8000-00aa00389b71");

		[FieldDescription("Protected Media")]
		public static readonly Guid MFMediaType_Protected = new Guid("7b4b6fe6-9d04-4494-be14-7e0bd076c8e4");

		[FieldDescription("SAMI captions")]
		public static readonly Guid MFMediaType_SAMI = new Guid("e69669a0-3dcd-40cb-9e2e-3708387c0616");

		[FieldDescription("Script stream")]
		public static readonly Guid MFMediaType_Script = new Guid("72178c22-e45b-11d5-bc2a-00b0d0f3f4ab");

		[FieldDescription("Still image stream")]
		public static readonly Guid MFMediaType_Image = new Guid("72178c23-e45b-11d5-bc2a-00b0d0f3f4ab");

		[FieldDescription("HTML stream")]
		public static readonly Guid MFMediaType_HTML = new Guid("72178c24-e45b-11d5-bc2a-00b0d0f3f4ab");

		[FieldDescription("Binary stream")]
		public static readonly Guid MFMediaType_Binary = new Guid("72178c25-e45b-11d5-bc2a-00b0d0f3f4ab");

		[FieldDescription("File transfer")]
		public static readonly Guid MFMediaType_FileTransfer = new Guid("72178c26-e45b-11d5-bc2a-00b0d0f3f4ab");
	}
	public struct MFT_INPUT_STREAM_INFO
	{
		public long hnsMaxLatency;

		public _MFT_INPUT_STREAM_INFO_FLAGS dwFlags;

		public int cbSize;

		public int cbMaxLookahead;

		public int cbAlignment;
	}
	public enum MFT_MESSAGE_TYPE
	{
		MFT_MESSAGE_COMMAND_FLUSH = 0,
		MFT_MESSAGE_COMMAND_DRAIN = 1,
		MFT_MESSAGE_SET_D3D_MANAGER = 2,
		MFT_MESSAGE_DROP_SAMPLES = 3,
		MFT_MESSAGE_COMMAND_TICK = 4,
		MFT_MESSAGE_NOTIFY_BEGIN_STREAMING = 268435456,
		MFT_MESSAGE_NOTIFY_END_STREAMING = 268435457,
		MFT_MESSAGE_NOTIFY_END_OF_STREAM = 268435458,
		MFT_MESSAGE_NOTIFY_START_OF_STREAM = 268435459,
		MFT_MESSAGE_COMMAND_MARKER = 536870912
	}
	public struct MFT_OUTPUT_DATA_BUFFER
	{
		public int dwStreamID;

		public IMFSample pSample;

		public _MFT_OUTPUT_DATA_BUFFER_FLAGS dwStatus;

		public IMFCollection pEvents;
	}
	public struct MFT_OUTPUT_STREAM_INFO
	{
		public _MFT_OUTPUT_STREAM_INFO_FLAGS dwFlags;

		public int cbSize;

		public int cbAlignment;
	}
	[StructLayout(LayoutKind.Sequential)]
	public class MFT_REGISTER_TYPE_INFO
	{
		public Guid guidMajorType;

		public Guid guidSubtype;
	}
	[StructLayout(LayoutKind.Sequential)]
	public class MF_SINK_WRITER_STATISTICS
	{
		public int cb;

		public long llLastTimestampReceived;

		public long llLastTimestampEncoded;

		public long llLastTimestampProcessed;

		public long llLastStreamTickReceived;

		public long llLastSinkSampleRequest;

		public long qwNumSamplesReceived;

		public long qwNumSamplesEncoded;

		public long qwNumSamplesProcessed;

		public long qwNumStreamTicksReceived;

		public int dwByteCountQueued;

		public long qwByteCountProcessed;

		public int dwNumOutstandingSinkSampleRequests;

		public int dwAverageSampleRateReceived;

		public int dwAverageSampleRateEncoded;

		public int dwAverageSampleRateProcessed;
	}
	public static class TranscodeContainerTypes
	{
		public static readonly Guid MFTranscodeContainerType_ASF = new Guid(1125085038u, 46783, 20417, 160, 189, 158, 228, 110, 238, 42, 251);

		public static readonly Guid MFTranscodeContainerType_MPEG4 = new Guid(3698118749u, 47568, 16623, 189, 53, 250, 98, 44, 26, 178, 138);

		public static readonly Guid MFTranscodeContainerType_MP3 = new Guid(3828922642u, 33777, 19942, 158, 58, 159, 251, 198, 221, 36, 209);

		public static readonly Guid MFTranscodeContainerType_3GP = new Guid(885326183, 17522, 20276, 158, 160, 196, 159, 186, 207, 3, 125);

		public static readonly Guid MFTranscodeContainerType_AC3 = new Guid(1837994435u, 35985, 20177, 135, 66, 140, 52, 125, 91, 68, 208);

		public static readonly Guid MFTranscodeContainerType_ADTS = new Guid(321901181, 3842, 17374, 163, 1, 56, 251, 187, 179, 131, 78);

		public static readonly Guid MFTranscodeContainerType_MPEG2 = new Guid(3217218553u, 31668, 20367, 175, 222, 225, 18, 196, 75, 168, 130);

		public static readonly Guid MFTranscodeContainerType_FMPEG4 = new Guid(2611508977u, 16799, 19319, 161, 224, 53, 149, 157, 157, 64, 4);

		public static readonly Guid MFTranscodeContainerType_WAVE = new Guid(1690518844, 3878, 18241, 190, 99, 135, 189, 248, 187, 147, 91);

		public static readonly Guid MFTranscodeContainerType_AVI = new Guid(2128603311, 16431, 19830, 163, 60, 97, 159, 209, 87, 208, 241);

		public static readonly Guid MFTranscodeContainerType_AMR = new Guid(39672531, 25114, 18267, 150, 77, 102, 177, 200, 36, 240, 121);
	}
	[Flags]
	public enum _MFT_ENUM_FLAG
	{
		None = 0,
		MFT_ENUM_FLAG_SYNCMFT = 1,
		MFT_ENUM_FLAG_ASYNCMFT = 2,
		MFT_ENUM_FLAG_HARDWARE = 4,
		MFT_ENUM_FLAG_FIELDOFUSE = 8,
		MFT_ENUM_FLAG_LOCALMFT = 0x10,
		MFT_ENUM_FLAG_TRANSCODE_ONLY = 0x20,
		MFT_ENUM_FLAG_SORTANDFILTER = 0x40,
		MFT_ENUM_FLAG_ALL = 0x3F
	}
	[Flags]
	public enum _MFT_INPUT_STATUS_FLAGS
	{
		None = 0,
		MFT_INPUT_STATUS_ACCEPT_DATA = 1
	}
	[Flags]
	public enum _MFT_INPUT_STREAM_INFO_FLAGS
	{
		None = 0,
		MFT_INPUT_STREAM_WHOLE_SAMPLES = 1,
		MFT_INPUT_STREAM_SINGLE_SAMPLE_PER_BUFFER = 2,
		MFT_INPUT_STREAM_FIXED_SAMPLE_SIZE = 4,
		MFT_INPUT_STREAM_HOLDS_BUFFERS = 8,
		MFT_INPUT_STREAM_DOES_NOT_ADDREF = 0x100,
		MFT_INPUT_STREAM_REMOVABLE = 0x200,
		MFT_INPUT_STREAM_OPTIONAL = 0x400,
		MFT_INPUT_STREAM_PROCESSES_IN_PLACE = 0x800
	}
	[Flags]
	public enum _MFT_OUTPUT_DATA_BUFFER_FLAGS
	{
		None = 0,
		MFT_OUTPUT_DATA_BUFFER_INCOMPLETE = 0x1000000,
		MFT_OUTPUT_DATA_BUFFER_FORMAT_CHANGE = 0x100,
		MFT_OUTPUT_DATA_BUFFER_STREAM_END = 0x200,
		MFT_OUTPUT_DATA_BUFFER_NO_SAMPLE = 0x300
	}
	[Flags]
	public enum _MFT_OUTPUT_STATUS_FLAGS
	{
		None = 0,
		MFT_OUTPUT_STATUS_SAMPLE_READY = 1
	}
	[Flags]
	public enum _MFT_OUTPUT_STREAM_INFO_FLAGS
	{
		None = 0,
		MFT_OUTPUT_STREAM_WHOLE_SAMPLES = 1,
		MFT_OUTPUT_STREAM_SINGLE_SAMPLE_PER_BUFFER = 2,
		MFT_OUTPUT_STREAM_FIXED_SAMPLE_SIZE = 4,
		MFT_OUTPUT_STREAM_DISCARDABLE = 8,
		MFT_OUTPUT_STREAM_OPTIONAL = 0x10,
		MFT_OUTPUT_STREAM_PROVIDES_SAMPLES = 0x100,
		MFT_OUTPUT_STREAM_CAN_PROVIDE_SAMPLES = 0x200,
		MFT_OUTPUT_STREAM_LAZY_READ = 0x400,
		MFT_OUTPUT_STREAM_REMOVABLE = 0x800
	}
	[Flags]
	public enum _MFT_PROCESS_OUTPUT_FLAGS
	{
		None = 0,
		MFT_PROCESS_OUTPUT_DISCARD_WHEN_NO_BUFFER = 1,
		MFT_PROCESS_OUTPUT_REGENERATE_LAST_OUTPUT = 2
	}
	[Flags]
	public enum _MFT_PROCESS_OUTPUT_STATUS
	{
		None = 0,
		MFT_PROCESS_OUTPUT_STATUS_NEW_STREAMS = 0x100
	}
	[Flags]
	public enum _MFT_SET_TYPE_FLAGS
	{
		None = 0,
		MFT_SET_TYPE_TEST_ONLY = 1
	}
}
namespace NAudio.Dmo
{
	public class DmoDescriptor
	{
		public string Name { get; private set; }

		public Guid Clsid { get; private set; }

		public DmoDescriptor(string name, Guid clsid)
		{
			Name = name;
			Clsid = clsid;
		}
	}
	public class DmoEnumerator
	{
		public static IEnumerable<DmoDescriptor> GetAudioEffectNames()
		{
			return GetDmos(DmoGuids.DMOCATEGORY_AUDIO_EFFECT);
		}

		public static IEnumerable<DmoDescriptor> GetAudioEncoderNames()
		{
			return GetDmos(DmoGuids.DMOCATEGORY_AUDIO_ENCODER);
		}

		public static IEnumerable<DmoDescriptor> GetAudioDecoderNames()
		{
			return GetDmos(DmoGuids.DMOCATEGORY_AUDIO_DECODER);
		}

		private static IEnumerable<DmoDescriptor> GetDmos(Guid category)
		{
			Marshal.ThrowExceptionForHR(DmoInterop.DMOEnum(ref category, DmoEnumFlags.None, 0, null, 0, null, out var enumDmo));
			int itemsFetched;
			do
			{
				enumDmo.Next(1, out var clsid, out var name, out itemsFetched);
				if (itemsFetched == 1)
				{
					string name2 = Marshal.PtrToStringUni(name);
					Marshal.FreeCoTaskMem(name);
					yield return new DmoDescriptor(name2, clsid);
				}
			}
			while (itemsFetched > 0);
		}
	}
	[Flags]
	internal enum DmoEnumFlags
	{
		None = 0,
		DMO_ENUMF_INCLUDE_KEYED = 1
	}
	internal static class DmoGuids
	{
		public static readonly Guid DMOCATEGORY_AUDIO_DECODER = new Guid("57f2db8b-e6bb-4513-9d43-dcd2a6593125");

		public static readonly Guid DMOCATEGORY_AUDIO_ENCODER = new Guid("33D9A761-90C8-11d0-BD43-00A0C911CE86");

		public static readonly Guid DMOCATEGORY_VIDEO_DECODER = new Guid("4a69b442-28be-4991-969c-b500adf5d8a8");

		public static readonly Guid DMOCATEGORY_VIDEO_ENCODER = new Guid("33D9A760-90C8-11d0-BD43-00A0C911CE86");

		public static readonly Guid DMOCATEGORY_AUDIO_EFFECT = new Guid("f3602b3f-0592-48df-a4cd-674721e7ebeb");

		public static readonly Guid DMOCATEGORY_VIDEO_EFFECT = new Guid("d990ee14-776c-4723-be46-3da2f56f10b9");

		public static readonly Guid DMOCATEGORY_AUDIO_CAPTURE_EFFECT = new Guid("f665aaba-3e09-4920-aa5f-219811148f09");
	}
	internal static class DmoMediaTypeGuids
	{
		public static readonly Guid FORMAT_None = new Guid("0F6417D6-C318-11D0-A43F-00A0C9223196");

		public static readonly Guid FORMAT_VideoInfo = new Guid("05589f80-c356-11ce-bf01-00aa0055595a");

		public static readonly Guid FORMAT_VideoInfo2 = new Guid("F72A76A0-EB0A-11d0-ACE4-0000C0CC16BA");

		public static readonly Guid FORMAT_WaveFormatEx = new Guid("05589f81-c356-11ce-bf01-00aa0055595a");

		public static readonly Guid FORMAT_MPEGVideo = new Guid("05589f82-c356-11ce-bf01-00aa0055595a");

		public static readonly Guid FORMAT_MPEGStreams = new Guid("05589f83-c356-11ce-bf01-00aa0055595a");

		public static readonly Guid FORMAT_DvInfo = new Guid("05589f84-c356-11ce-bf01-00aa0055595a");

		public static readonly Guid FORMAT_525WSS = new Guid("C7ECF04D-4582-4869-9ABB-BFB523B62EDF");
	}
	internal enum DmoHResults
	{
		DMO_E_INVALIDSTREAMINDEX = -2147220991,
		DMO_E_INVALIDTYPE,
		DMO_E_TYPE_NOT_SET,
		DMO_E_NOTACCEPTING,
		DMO_E_TYPE_NOT_ACCEPTED,
		DMO_E_NO_MORE_ITEMS
	}
	[Flags]
	public enum DmoInPlaceProcessFlags
	{
		Normal = 0,
		Zero = 1
	}
	public enum DmoInPlaceProcessReturn
	{
		Normal,
		HasEffectTail
	}
	[Flags]
	public enum DmoInputDataBufferFlags
	{
		None = 0,
		SyncPoint = 1,
		Time = 2,
		TimeLength = 4
	}
	[Flags]
	internal enum DmoInputStatusFlags
	{
		None = 0,
		DMO_INPUT_STATUSF_ACCEPT_DATA = 1
	}
	internal static class DmoInterop
	{
		[DllImport("msdmo.dll")]
		public static extern int DMOEnum([In] ref Guid guidCategory, DmoEnumFlags flags, int inTypes, [In] DmoPartialMediaType[] inTypesArray, int outTypes, [In] DmoPartialMediaType[] outTypesArray, out IEnumDmo enumDmo);

		[DllImport("msdmo.dll")]
		public static extern int MoFreeMediaType([In] ref DmoMediaType mediaType);

		[DllImport("msdmo.dll")]
		public static extern int MoInitMediaType([In][Out] ref DmoMediaType mediaType, int formatBlockBytes);

		[DllImport("msdmo.dll")]
		public static extern int DMOGetName([In] ref Guid clsidDMO, [Out] StringBuilder name);
	}
	public struct DmoMediaType
	{
		private Guid majortype;

		private Guid subtype;

		private bool bFixedSizeSamples;

		private bool bTemporalCompression;

		private int lSampleSize;

		private Guid formattype;

		private IntPtr pUnk;

		private int cbFormat;

		private IntPtr pbFormat;

		public Guid MajorType => majortype;

		public string MajorTypeName => MediaTypes.GetMediaTypeName(majortype);

		public Guid SubType => subtype;

		public string SubTypeName
		{
			get
			{
				if (majortype == MediaTypes.MEDIATYPE_Audio)
				{
					return AudioMediaSubtypes.GetAudioSubtypeName(subtype);
				}
				return subtype.ToString();
			}
		}

		public bool FixedSizeSamples => bFixedSizeSamples;

		public int SampleSize => lSampleSize;

		public Guid FormatType => formattype;

		public string FormatTypeName
		{
			get
			{
				if (formattype == DmoMediaTypeGuids.FORMAT_None)
				{
					return "None";
				}
				if (formattype == Guid.Empty)
				{
					return "Null";
				}
				if (formattype == DmoMediaTypeGuids.FORMAT_WaveFormatEx)
				{
					return "WaveFormatEx";
				}
				return FormatType.ToString();
			}
		}

		public WaveFormat GetWaveFormat()
		{
			if (formattype == DmoMediaTypeGuids.FORMAT_WaveFormatEx)
			{
				return WaveFormat.MarshalFromPtr(pbFormat);
			}
			throw new InvalidOperationException("Not a WaveFormat type");
		}

		public void SetWaveFormat(WaveFormat waveFormat)
		{
			//IL_0024: Unknown result type (might be due to invalid IL or missing references)
			//IL_0029: Unknown result type (might be due to invalid IL or missing references)
			//IL_002a: Unknown result type (might be due to invalid IL or missing references)
			//IL_002c: Invalid comparison between Unknown and I4
			//IL_002e: Unknown result type (might be due to invalid IL or missing references)
			//IL_0030: Invalid comparison between Unknown and I4
			//IL_0032: Unknown result type (might be due to invalid IL or missing references)
			//IL_0035: Invalid comparison between Unknown and I4
			//IL_0066: Unknown result type (might be due to invalid IL or missing references)
			majortype = MediaTypes.MEDIATYPE_Audio;
			WaveFormatExtensible val = (WaveFormatExtensible)(object)((waveFormat is WaveFormatExtensible) ? waveFormat : null);
			if (val != null)
			{
				subtype = val.SubFormat;
			}
			else
			{
				WaveFormatEncoding encoding = waveFormat.Encoding;
				if ((int)encoding != 1)
				{
					if ((int)encoding != 3)
					{
						if ((int)encoding != 85)
						{
							throw new ArgumentException($"Not a supported encoding {waveFormat.Encoding}");
						}
						subtype = AudioMediaSubtypes.WMMEDIASUBTYPE_MP3;
					}
					else
					{
						subtype = AudioMediaSubtypes.MEDIASUBTYPE_IEEE_FLOAT;
					}
				}
				else
				{
					subtype = AudioMediaSubtypes.MEDIASUBTYPE_PCM;
				}
			}
			bFixedSizeSamples = SubType == AudioMediaSubtypes.MEDIASUBTYPE_PCM || SubType == AudioMediaSubtypes.MEDIASUBTYPE_IEEE_FLOAT;
			formattype = DmoMediaTypeGuids.FORMAT_WaveFormatEx;
			if (cbFormat < Marshal.SizeOf<WaveFormat>(waveFormat))
			{
				throw new InvalidOperationException("Not enough memory assigned for a WaveFormat structure");
			}
			Marshal.StructureToPtr<WaveFormat>(waveFormat, pbFormat, fDeleteOld: false);
		}
	}
	[StructLayout(LayoutKind.Sequential, Pack = 8)]
	public struct DmoOutputDataBuffer : IDisposable
	{
		[MarshalAs(UnmanagedType.Interface)]
		private IMediaBuffer pBuffer;

		private DmoOutputDataBufferFlags dwStatus;

		private long rtTimestamp;

		private long referenceTimeDuration;

		public IMediaBuffer MediaBuffer
		{
			get
			{
				return pBuffer;
			}
			internal set
			{
				pBuffer = value;
			}
		}

		public int Length => ((MediaBuffer)pBuffer).Length;

		public DmoOutputDataBufferFlags StatusFlags
		{
			get
			{
				return dwStatus;
			}
			internal set
			{
				dwStatus = value;
			}
		}

		public long Timestamp
		{
			get
			{
				return rtTimestamp;
			}
			internal set
			{
				rtTimestamp = value;
			}
		}

		public long Duration
		{
			get
			{
				return referenceTimeDuration;
			}
			internal set
			{
				referenceTimeDuration = value;
			}
		}

		public bool MoreDataAvailable => (StatusFlags & DmoOutputDataBufferFlags.Incomplete) == DmoOutputDataBufferFlags.Incomplete;

		public DmoOutputDataBuffer(int maxBufferSize)
		{
			pBuffer = new MediaBuffer(maxBufferSize);
			dwStatus = DmoOutputDataBufferFlags.None;
			rtTimestamp = 0L;
			referenceTimeDuration = 0L;
		}

		public void Dispose()
		{
			if (pBuffer != null)
			{
				((MediaBuffer)pBuffer).Dispose();
				pBuffer = null;
				GC.SuppressFinalize(this);
			}
		}

		public void RetrieveData(byte[] data, int offset)
		{
			((MediaBuffer)pBuffer).RetrieveData(data, offset);
		}
	}
	[Flags]
	public enum DmoOutputDataBufferFlags
	{
		None = 0,
		SyncPoint = 1,
		Time = 2,
		TimeLength = 4,
		Incomplete = 0x1000000
	}
	internal struct DmoPartialMediaType
	{
		private Guid type;

		private Guid subtype;

		public Guid Type
		{
			get
			{
				return type;
			}
			internal set
			{
				type = value;
			}
		}

		public Guid Subtype
		{
			get
			{
				return subtype;
			}
			internal set
			{
				subtype = value;
			}
		}
	}
	[Flags]
	public enum DmoProcessOutputFlags
	{
		None = 0,
		DiscardWhenNoBuffer = 1
	}
	[Flags]
	internal enum DmoSetTypeFlags
	{
		None = 0,
		DMO_SET_TYPEF_TEST_ONLY = 1,
		DMO_SET_TYPEF_CLEAR = 2
	}
	[ComImport]
	[Guid("2c3cd98a-2bfa-4a53-9c27-5249ba64ba0f")]
	[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
	internal interface IEnumDmo
	{
		int Next(int itemsToFetch, out Guid clsid, out IntPtr name, out int itemsFetched);

		int Skip(int itemsToSkip);

		int Reset();

		int Clone(out IEnumDmo enumPointer);
	}
	[ComImport]
	[SuppressUnmanagedCodeSecurity]
	[Guid("59eff8b9-938c-4a26-82f2-95cb84cdc837")]
	[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
	public interface IMediaBuffer
	{
		[PreserveSig]
		int SetLength(int length);

		[PreserveSig]
		int GetMaxLength(out int maxLength);

		[PreserveSig]
		int GetBufferAndLength(IntPtr bufferPointerPointer, IntPtr validDataLengthPointer);
	}
	[ComImport]
	[SuppressUnmanagedCodeSecurity]
	[Guid("d8ad0f58-5494-4102-97c5-ec798e59bcf4")]
	[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
	internal interface IMediaObject
	{
		[PreserveSig]
		int GetStreamCount(out int inputStreams, out int outputStreams);

		[PreserveSig]
		int GetInputStreamInfo(int inputStreamIndex, out InputStreamInfoFlags flags);

		[PreserveSig]
		int GetOutputStreamInfo(int outputStreamIndex, out OutputStreamInfoFlags flags);

		[PreserveSig]
		int GetInputType(int inputStreamIndex, int typeIndex, out DmoMediaType mediaType);

		[PreserveSig]
		int GetOutputType(int outputStreamIndex, int typeIndex, out DmoMediaType mediaType);

		[PreserveSig]
		int SetInputType(int inputStreamIndex, [In] ref DmoMediaType mediaType, DmoSetTypeFlags flags);

		[PreserveSig]
		int SetOutputType(int outputStreamIndex, [In] ref DmoMediaType mediaType, DmoSetTypeFlags flags);

		[PreserveSig]
		int GetInputCurrentType(int inputStreamIndex, out DmoMediaType mediaType);

		[PreserveSig]
		int GetOutputCurrentType(int outputStreamIndex, out DmoMediaType mediaType);

		[PreserveSig]
		int GetInputSizeInfo(int inputStreamIndex, out int size, out int maxLookahead, out int alignment);

		[PreserveSig]
		int GetOutputSizeInfo(int outputStreamIndex, out int size, out int alignment);

		[PreserveSig]
		int GetInputMaxLatency(int inputStreamIndex, out long referenceTimeMaxLatency);

		[PreserveSig]
		int SetInputMaxLatency(int inputStreamIndex, long referenceTimeMaxLatency);

		[PreserveSig]
		int Flush();

		[PreserveSig]
		int Discontinuity(int inputStreamIndex);

		[PreserveSig]
		int AllocateStreamingResources();

		[PreserveSig]
		int FreeStreamingResources();

		[PreserveSig]
		int GetInputStatus(int inputStreamIndex, out DmoInputStatusFlags flags);

		[PreserveSig]
		int ProcessInput(int inputStreamIndex, [In] IMediaBuffer mediaBuffer, DmoInputDataBufferFlags flags, long referenceTimeTimestamp, long referenceTimeDuration);

		[PreserveSig]
		int ProcessOutput(DmoProcessOutputFlags flags, int outputBufferCount, [In][Out][MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 1)] DmoOutputDataBuffer[] outputBuffers, out int statusReserved);

		[PreserveSig]
		int Lock(bool acquireLock);
	}
	[ComImport]
	[SuppressUnmanagedCodeSecurity]
	[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
	[Guid("651B9AD0-0FC7-4AA9-9538-D89931010741")]
	internal interface IMediaObjectInPlace
	{
		[PreserveSig]
		int Process([In] int size, [In] IntPtr data, [In] long refTimeStart, [In] DmoInPlaceProcessFlags dwFlags);

		[PreserveSig]
		int Clone([MarshalAs(UnmanagedType.Interface)] out IMediaObjectInPlace mediaObjectInPlace);

		[PreserveSig]
		int GetLatency(out long latencyTime);
	}
	[ComImport]
	[SuppressUnmanagedCodeSecurity]
	[Guid("6d6cbb60-a223-44aa-842f-a2f06750be6d")]
	[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
	internal interface IMediaParamInfo
	{
		[PreserveSig]
		int GetParamCount(out int paramCount);

		[PreserveSig]
		int GetParamInfo(int paramIndex, ref MediaParamInfo paramInfo);

		[PreserveSig]
		int GetParamText(int paramIndex, out IntPtr paramText);

		[PreserveSig]
		int GetNumTimeFormats(out int numTimeFormats);

		[PreserveSig]
		int GetSupportedTimeFormat(int formatIndex, out Guid guidTimeFormat);

		[PreserveSig]
		int GetCurrentTimeFormat(out Guid guidTimeFormat, out int mediaTimeData);
	}
	[Flags]
	internal enum InputStreamInfoFlags
	{
		None = 0,
		DMO_INPUT_STREAMF_WHOLE_SAMPLES = 1,
		DMO_INPUT_STREAMF_SINGLE_SAMPLE_PER_BUFFER = 2,
		DMO_INPUT_STREAMF_FIXED_SAMPLE_SIZE = 4,
		DMO_INPUT_STREAMF_HOLDS_BUFFERS = 8
	}
	[ComImport]
	[Guid("E7E9984F-F09F-4da4-903F-6E2E0EFE56B5")]
	[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
	internal interface IWMResamplerProps
	{
		int SetHalfFilterLength(int outputQuality);

		int SetUserChannelMtx([In] float[] channelConversionMatrix);
	}
	public class MediaBuffer : IMediaBuffer, IDisposable
	{
		private IntPtr buffer;

		private int length;

		private readonly int maxLength;

		public int Length
		{
			get
			{
				return length;
			}
			set
			{
				if (length > maxLength)
				{
					throw new ArgumentException("Cannot be greater than maximum buffer size");
				}
				length = value;
			}
		}

		public MediaBuffer(int maxLength)
		{
			buffer = Marshal.AllocCoTaskMem(maxLength);
			this.maxLength = maxLength;
		}

		public void Dispose()
		{
			if (buffer != IntPtr.Zero)
			{
				Marshal.FreeCoTaskMem(buffer);
				buffer = IntPtr.Zero;
				GC.SuppressFinalize(this);
			}
		}

		~MediaBuffer()
		{
			Dispose();
		}

		int IMediaBuffer.SetLength(int length)
		{
			if (length > maxLength)
			{
				return -2147483645;
			}
			this.length = length;
			return 0;
		}

		int IMediaBuffer.GetMaxLength(out int maxLength)
		{
			maxLength = this.maxLength;
			return 0;
		}

		int IMediaBuffer.GetBufferAndLength(IntPtr bufferPointerPointer, IntPtr validDataLengthPointer)
		{
			if (bufferPointerPointer != IntPtr.Zero)
			{
				Marshal.WriteIntPtr(bufferPointerPointer, buffer);
			}
			if (validDataLengthPointer != IntPtr.Zero)
			{
				Marshal.WriteInt32(validDataLengthPointer, length);
			}
			return 0;
		}

		public void LoadData(byte[] data, int bytes)
		{
			Length = bytes;
			Marshal.Copy(data, 0, buffer, bytes);
		}

		public void RetrieveData(byte[] data, int offset)
		{
			Marshal.Copy(buffer, data, offset, Length);
		}
	}
	public class MediaObject : IDisposable
	{
		private IMediaObject mediaObject;

		private readonly int inputStreams;

		private readonly int outputStreams;

		public int InputStreamCount => inputStreams;

		public int OutputStreamCount => outputStreams;

		internal MediaObject(IMediaObject mediaObject)
		{
			this.mediaObject = mediaObject;
			mediaObject.GetStreamCount(out inputStreams, out outputStreams);
		}

		public DmoMediaType? GetInputType(int inputStream, int inputTypeIndex)
		{
			try
			{
				if (mediaObject.GetInputType(inputStream, inputTypeIndex, out var mediaType) == 0)
				{
					DmoInterop.MoFreeMediaType(ref mediaType);
					return mediaType;
				}
			}
			catch (COMException ex)
			{
				if (HResult.GetHResult(ex) != -2147220986)
				{
					throw;
				}
			}
			return null;
		}

		public DmoMediaType? GetOutputType(int outputStream, int outputTypeIndex)
		{
			try
			{
				if (mediaObject.GetOutputType(outputStream, outputTypeIndex, out var mediaType) == 0)
				{
					DmoInterop.MoFreeMediaType(ref mediaType);
					return mediaType;
				}
			}
			catch (COMException ex)
			{
				if (HResult.GetHResult(ex) != -2147220986)
				{
					throw;
				}
			}
			return null;
		}

		public DmoMediaType GetOutputCurrentType(int outputStreamIndex)
		{
			DmoMediaType mediaType;
			int outputCurrentType = mediaObject.GetOutputCurrentType(outputStreamIndex, out mediaType);
			switch (outputCurrentType)
			{
			case 0:
				DmoInterop.MoFreeMediaType(ref mediaType);
				return mediaType;
			case -2147220989:
				throw new InvalidOperationException("Media type was not set.");
			default:
				throw Marshal.GetExceptionForHR(outputCurrentType);
			}
		}

		public IEnumerable<DmoMediaType> GetInputTypes(int inputStreamIndex)
		{
			int typeIndex = 0;
			while (true)
			{
				DmoMediaType? inputType;
				DmoMediaType? dmoMediaType = (inputType = GetInputType(inputStreamIndex, typeIndex));
				if (dmoMediaType.HasValue)
				{
					yield return inputType.Value;
					typeIndex++;
					continue;
				}
				break;
			}
		}

		public IEnumerable<DmoMediaType> GetOutputTypes(int outputStreamIndex)
		{
			int typeIndex = 0;
			while (true)
			{
				DmoMediaType? outputType;
				DmoMediaType? dmoMediaType = (outputType = GetOutputType(outputStreamIndex, typeIndex));
				if (dmoMediaType.HasValue)
				{
					yield return outputType.Value;
					typeIndex++;
					continue;
				}
				break;
			}
		}

		public bool SupportsInputType(int inputStreamIndex, DmoMediaType mediaType)
		{
			return SetInputType(inputStreamIndex, mediaType, DmoSetTypeFlags.DMO_SET_TYPEF_TEST_ONLY);
		}

		private bool SetInputType(int inputStreamIndex, DmoMediaType mediaType, DmoSetTypeFlags flags)
		{
			switch (mediaObject.SetInputType(inputStreamIndex, ref mediaType, flags))
			{
			case -2147220991:
				throw new ArgumentException("Invalid stream index");
			default:
				_ = -2147220987;
				return false;
			case 0:
				return true;
			}
		}

		public void SetInputType(int inputStreamIndex, DmoMediaType mediaType)
		{
			if (!SetInputType(inputStreamIndex, mediaType, DmoSetTypeFlags.None))
			{
				throw new ArgumentException("Media Type not supported");
			}
		}

		public void SetInputWaveFormat(int inputStreamIndex, WaveFormat waveFormat)
		{
			DmoMediaType mediaType = CreateDmoMediaTypeForWaveFormat(waveFormat);
			bool num = SetInputType(inputStreamIndex, mediaType, DmoSetTypeFlags.None);
			DmoInterop.MoFreeMediaType(ref mediaType);
			if (!num)
			{
				throw new ArgumentException("Media Type not supported");
			}
		}

		public bool SupportsInputWaveFormat(int inputStreamIndex, WaveFormat waveFormat)
		{
			DmoMediaType mediaType = CreateDmoMediaTypeForWaveFormat(waveFormat);
			bool result = SetInputType(inputStreamIndex, mediaType, DmoSetTypeFlags.DMO_SET_TYPEF_TEST_ONLY);
			DmoInterop.MoFreeMediaType(ref mediaType);
			return result;
		}

		private DmoMediaType CreateDmoMediaTypeForWaveFormat(WaveFormat

Dependencies/NAudio.WinMM.dll

Decompiled a day ago
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Runtime.Versioning;
using System.Threading;
using Microsoft.Win32;
using NAudio.CoreAudioApi;
using NAudio.Mixer;
using NAudio.Utils;
using NAudio.Wave.Compression;

[assembly: CompilationRelaxations(8)]
[assembly: RuntimeCompatibility(WrapNonExceptionThrows = true)]
[assembly: Debuggable(DebuggableAttribute.DebuggingModes.IgnoreSymbolStoreSequencePoints)]
[assembly: TargetFramework(".NETStandard,Version=v2.0", FrameworkDisplayName = ".NET Standard 2.0")]
[assembly: AssemblyCompany("NAudio.WinMM")]
[assembly: AssemblyConfiguration("Release")]
[assembly: AssemblyCopyright("© Mark Heath 2023")]
[assembly: AssemblyFileVersion("2.2.1.0")]
[assembly: AssemblyInformationalVersion("2.2.1")]
[assembly: AssemblyProduct("NAudio.WinMM")]
[assembly: AssemblyTitle("NAudio.WinMM")]
[assembly: AssemblyMetadata("RepositoryUrl", "https://github.com/naudio/NAudio")]
[assembly: AssemblyVersion("2.2.1.0")]
namespace NAudio.Mixer
{
	public class BooleanMixerControl : MixerControl
	{
		private MixerInterop.MIXERCONTROLDETAILS_BOOLEAN boolDetails;

		public bool Value
		{
			get
			{
				GetControlDetails();
				return boolDetails.fValue == 1;
			}
			set
			{
				//IL_0055: Unknown result type (might be due to invalid IL or missing references)
				boolDetails.fValue = (value ? 1 : 0);
				mixerControlDetails.paDetails = Marshal.AllocHGlobal(Marshal.SizeOf(boolDetails));
				Marshal.StructureToPtr(boolDetails, mixerControlDetails.paDetails, fDeleteOld: false);
				MmException.Try(MixerInterop.mixerSetControlDetails(mixerHandle, ref mixerControlDetails, MixerFlags.Mixer | mixerHandleType), "mixerSetControlDetails");
				Marshal.FreeHGlobal(mixerControlDetails.paDetails);
			}
		}

		internal BooleanMixerControl(MixerInterop.MIXERCONTROL mixerControl, IntPtr mixerHandle, MixerFlags mixerHandleType, int nChannels)
		{
			base.mixerControl = mixerControl;
			base.mixerHandle = mixerHandle;
			base.mixerHandleType = mixerHandleType;
			base.nChannels = nChannels;
			mixerControlDetails = default(MixerInterop.MIXERCONTROLDETAILS);
			GetControlDetails();
		}

		protected override void GetDetails(IntPtr pDetails)
		{
			boolDetails = Marshal.PtrToStructure<MixerInterop.MIXERCONTROLDETAILS_BOOLEAN>(pDetails);
		}
	}
	public class CustomMixerControl : MixerControl
	{
		internal CustomMixerControl(MixerInterop.MIXERCONTROL mixerControl, IntPtr mixerHandle, MixerFlags mixerHandleType, int nChannels)
		{
			base.mixerControl = mixerControl;
			base.mixerHandle = mixerHandle;
			base.mixerHandleType = mixerHandleType;
			base.nChannels = nChannels;
			mixerControlDetails = default(MixerInterop.MIXERCONTROLDETAILS);
			GetControlDetails();
		}

		protected override void GetDetails(IntPtr pDetails)
		{
		}
	}
	public class ListTextMixerControl : MixerControl
	{
		internal ListTextMixerControl(MixerInterop.MIXERCONTROL mixerControl, IntPtr mixerHandle, MixerFlags mixerHandleType, int nChannels)
		{
			base.mixerControl = mixerControl;
			base.mixerHandle = mixerHandle;
			base.mixerHandleType = mixerHandleType;
			base.nChannels = nChannels;
			mixerControlDetails = default(MixerInterop.MIXERCONTROLDETAILS);
			GetControlDetails();
		}

		protected override void GetDetails(IntPtr pDetails)
		{
		}
	}
	public class Mixer
	{
		private MixerInterop.MIXERCAPS caps;

		private IntPtr mixerHandle;

		private MixerFlags mixerHandleType;

		public static int NumberOfDevices => MixerInterop.mixerGetNumDevs();

		public int DestinationCount => (int)caps.cDestinations;

		public string Name => caps.szPname;

		public Manufacturers Manufacturer => (Manufacturers)caps.wMid;

		public int ProductID => caps.wPid;

		public IEnumerable<MixerLine> Destinations
		{
			get
			{
				for (int destination = 0; destination < DestinationCount; destination++)
				{
					yield return GetDestination(destination);
				}
			}
		}

		public static IEnumerable<Mixer> Mixers
		{
			get
			{
				for (int device = 0; device < NumberOfDevices; device++)
				{
					yield return new Mixer(device);
				}
			}
		}

		public Mixer(int mixerIndex)
		{
			//IL_0040: Unknown result type (might be due to invalid IL or missing references)
			if (mixerIndex < 0 || mixerIndex >= NumberOfDevices)
			{
				throw new ArgumentOutOfRangeException("mixerID");
			}
			caps = default(MixerInterop.MIXERCAPS);
			MmException.Try(MixerInterop.mixerGetDevCaps((IntPtr)mixerIndex, ref caps, Marshal.SizeOf(caps)), "mixerGetDevCaps");
			mixerHandle = (IntPtr)mixerIndex;
			mixerHandleType = MixerFlags.Mixer;
		}

		public MixerLine GetDestination(int destinationIndex)
		{
			if (destinationIndex < 0 || destinationIndex >= DestinationCount)
			{
				throw new ArgumentOutOfRangeException("destinationIndex");
			}
			return new MixerLine(mixerHandle, destinationIndex, mixerHandleType);
		}
	}
	public abstract class MixerControl
	{
		internal MixerInterop.MIXERCONTROL mixerControl;

		internal MixerInterop.MIXERCONTROLDETAILS mixerControlDetails;

		protected IntPtr mixerHandle;

		protected int nChannels;

		protected MixerFlags mixerHandleType;

		public string Name => mixerControl.szName;

		public MixerControlType ControlType => mixerControl.dwControlType;

		public bool IsBoolean => IsControlBoolean(mixerControl.dwControlType);

		public bool IsListText => IsControlListText(mixerControl.dwControlType);

		public bool IsSigned => IsControlSigned(mixerControl.dwControlType);

		public bool IsUnsigned => IsControlUnsigned(mixerControl.dwControlType);

		public bool IsCustom => IsControlCustom(mixerControl.dwControlType);

		public static IList<MixerControl> GetMixerControls(IntPtr mixerHandle, MixerLine mixerLine, MixerFlags mixerHandleType)
		{
			//IL_006f: Unknown result type (might be due to invalid IL or missing references)
			//IL_0074: Unknown result type (might be due to invalid IL or missing references)
			//IL_0076: Unknown result type (might be due to invalid IL or missing references)
			//IL_007a: Unknown result type (might be due to invalid IL or missing references)
			//IL_0081: Unknown result type (might be due to invalid IL or missing references)
			List<MixerControl> list = new List<MixerControl>();
			if (mixerLine.ControlsCount > 0)
			{
				int num = Marshal.SizeOf<MixerInterop.MIXERCONTROL>();
				MixerInterop.MIXERLINECONTROLS mixerLineControls = default(MixerInterop.MIXERLINECONTROLS);
				IntPtr intPtr = Marshal.AllocHGlobal(num * mixerLine.ControlsCount);
				mixerLineControls.cbStruct = Marshal.SizeOf(mixerLineControls);
				mixerLineControls.dwLineID = mixerLine.LineId;
				mixerLineControls.cControls = mixerLine.ControlsCount;
				mixerLineControls.pamxctrl = intPtr;
				mixerLineControls.cbmxctrl = Marshal.SizeOf<MixerInterop.MIXERCONTROL>();
				try
				{
					MmResult val = MixerInterop.mixerGetLineControls(mixerHandle, ref mixerLineControls, MixerFlags.Mixer | mixerHandleType);
					if ((int)val != 0)
					{
						throw new MmException(val, "mixerGetLineControls");
					}
					for (int i = 0; i < mixerLineControls.cControls; i++)
					{
						MixerInterop.MIXERCONTROL mIXERCONTROL = Marshal.PtrToStructure<MixerInterop.MIXERCONTROL>((IntPtr)(intPtr.ToInt64() + num * i));
						MixerControl item = GetMixerControl(mixerHandle, mixerLine.LineId, mIXERCONTROL.dwControlID, mixerLine.Channels, mixerHandleType);
						list.Add(item);
					}
				}
				finally
				{
					Marshal.FreeHGlobal(intPtr);
				}
			}
			return list;
		}

		public static MixerControl GetMixerControl(IntPtr mixerHandle, int nLineId, int controlId, int nChannels, MixerFlags mixerFlags)
		{
			//IL_005d: Unknown result type (might be due to invalid IL or missing references)
			//IL_0062: Unknown result type (might be due to invalid IL or missing references)
			//IL_0063: Unknown result type (might be due to invalid IL or missing references)
			//IL_006c: Unknown result type (might be due to invalid IL or missing references)
			//IL_0072: Unknown result type (might be due to invalid IL or missing references)
			MixerInterop.MIXERLINECONTROLS mixerLineControls = default(MixerInterop.MIXERLINECONTROLS);
			MixerInterop.MIXERCONTROL structure = default(MixerInterop.MIXERCONTROL);
			IntPtr intPtr = Marshal.AllocCoTaskMem(Marshal.SizeOf(structure));
			mixerLineControls.cbStruct = Marshal.SizeOf(mixerLineControls);
			mixerLineControls.cControls = 1;
			mixerLineControls.dwControlID = controlId;
			mixerLineControls.cbmxctrl = Marshal.SizeOf(structure);
			mixerLineControls.pamxctrl = intPtr;
			mixerLineControls.dwLineID = nLineId;
			MmResult val = MixerInterop.mixerGetLineControls(mixerHandle, ref mixerLineControls, MixerFlags.ListText | mixerFlags);
			if ((int)val != 0)
			{
				Marshal.FreeCoTaskMem(intPtr);
				throw new MmException(val, "mixerGetLineControls");
			}
			structure = Marshal.PtrToStructure<MixerInterop.MIXERCONTROL>(mixerLineControls.pamxctrl);
			Marshal.FreeCoTaskMem(intPtr);
			if (IsControlBoolean(structure.dwControlType))
			{
				return new BooleanMixerControl(structure, mixerHandle, mixerFlags, nChannels);
			}
			if (IsControlSigned(structure.dwControlType))
			{
				return new SignedMixerControl(structure, mixerHandle, mixerFlags, nChannels);
			}
			if (IsControlUnsigned(structure.dwControlType))
			{
				return new UnsignedMixerControl(structure, mixerHandle, mixerFlags, nChannels);
			}
			if (IsControlListText(structure.dwControlType))
			{
				return new ListTextMixerControl(structure, mixerHandle, mixerFlags, nChannels);
			}
			if (IsControlCustom(structure.dwControlType))
			{
				return new CustomMixerControl(structure, mixerHandle, mixerFlags, nChannels);
			}
			throw new InvalidOperationException($"Unknown mixer control type {structure.dwControlType}");
		}

		protected void GetControlDetails()
		{
			//IL_01a6: Unknown result type (might be due to invalid IL or missing references)
			//IL_01ab: Unknown result type (might be due to invalid IL or missing references)
			//IL_01ac: Unknown result type (might be due to invalid IL or missing references)
			//IL_01c6: Unknown result type (might be due to invalid IL or missing references)
			//IL_01c9: Unknown result type (might be due to invalid IL or missing references)
			//IL_01cf: Unknown result type (might be due to invalid IL or missing references)
			mixerControlDetails.cbStruct = Marshal.SizeOf(mixerControlDetails);
			mixerControlDetails.dwControlID = mixerControl.dwControlID;
			if (IsCustom)
			{
				mixerControlDetails.cChannels = 0;
			}
			else if ((mixerControl.fdwControl & (true ? 1u : 0u)) != 0)
			{
				mixerControlDetails.cChannels = 1;
			}
			else
			{
				mixerControlDetails.cChannels = nChannels;
			}
			if ((mixerControl.fdwControl & 2u) != 0)
			{
				mixerControlDetails.hwndOwner = (IntPtr)mixerControl.cMultipleItems;
			}
			else if (IsCustom)
			{
				mixerControlDetails.hwndOwner = IntPtr.Zero;
			}
			else
			{
				mixerControlDetails.hwndOwner = IntPtr.Zero;
			}
			if (IsBoolean)
			{
				mixerControlDetails.cbDetails = Marshal.SizeOf<MixerInterop.MIXERCONTROLDETAILS_BOOLEAN>();
			}
			else if (IsListText)
			{
				mixerControlDetails.cbDetails = Marshal.SizeOf<MixerInterop.MIXERCONTROLDETAILS_LISTTEXT>();
			}
			else if (IsSigned)
			{
				mixerControlDetails.cbDetails = Marshal.SizeOf<MixerInterop.MIXERCONTROLDETAILS_SIGNED>();
			}
			else if (IsUnsigned)
			{
				mixerControlDetails.cbDetails = Marshal.SizeOf<MixerInterop.MIXERCONTROLDETAILS_UNSIGNED>();
			}
			else
			{
				mixerControlDetails.cbDetails = mixerControl.Metrics.customData;
			}
			int num = mixerControlDetails.cbDetails * mixerControlDetails.cChannels;
			if ((mixerControl.fdwControl & 2u) != 0)
			{
				num *= (int)mixerControl.cMultipleItems;
			}
			IntPtr intPtr = Marshal.AllocCoTaskMem(num);
			mixerControlDetails.paDetails = intPtr;
			MmResult val = MixerInterop.mixerGetControlDetails(mixerHandle, ref mixerControlDetails, MixerFlags.Mixer | mixerHandleType);
			if ((int)val == 0)
			{
				GetDetails(mixerControlDetails.paDetails);
			}
			Marshal.FreeCoTaskMem(intPtr);
			if ((int)val != 0)
			{
				throw new MmException(val, "mixerGetControlDetails");
			}
		}

		protected abstract void GetDetails(IntPtr pDetails);

		private static bool IsControlBoolean(MixerControlType controlType)
		{
			switch (controlType)
			{
			case MixerControlType.BooleanMeter:
			case MixerControlType.Boolean:
			case MixerControlType.OnOff:
			case MixerControlType.Mute:
			case MixerControlType.Mono:
			case MixerControlType.Loudness:
			case MixerControlType.StereoEnhance:
			case MixerControlType.Button:
			case MixerControlType.SingleSelect:
			case MixerControlType.Mux:
			case MixerControlType.MultipleSelect:
			case MixerControlType.Mixer:
				return true;
			default:
				return false;
			}
		}

		private static bool IsControlListText(MixerControlType controlType)
		{
			if (controlType == MixerControlType.Equalizer || (uint)(controlType - 1879113728) <= 1u || (uint)(controlType - 1895890944) <= 1u)
			{
				return true;
			}
			return false;
		}

		private static bool IsControlSigned(MixerControlType controlType)
		{
			switch (controlType)
			{
			case MixerControlType.SignedMeter:
			case MixerControlType.PeakMeter:
			case MixerControlType.Signed:
			case MixerControlType.Decibels:
			case MixerControlType.Slider:
			case MixerControlType.Pan:
			case MixerControlType.QSoundPan:
				return true;
			default:
				return false;
			}
		}

		private static bool IsControlUnsigned(MixerControlType controlType)
		{
			switch (controlType)
			{
			case MixerControlType.UnsignedMeter:
			case MixerControlType.Unsigned:
			case MixerControlType.Percent:
			case MixerControlType.Fader:
			case MixerControlType.Volume:
			case MixerControlType.Bass:
			case MixerControlType.Treble:
			case MixerControlType.Equalizer:
			case MixerControlType.MicroTime:
			case MixerControlType.MilliTime:
				return true;
			default:
				return false;
			}
		}

		private static bool IsControlCustom(MixerControlType controlType)
		{
			return controlType == MixerControlType.Custom;
		}

		public override string ToString()
		{
			return $"{Name} {ControlType}";
		}
	}
	[Flags]
	internal enum MixerControlClass
	{
		Custom = 0,
		Meter = 0x10000000,
		Switch = 0x20000000,
		Number = 0x30000000,
		Slider = 0x40000000,
		Fader = 0x50000000,
		Time = 0x60000000,
		List = 0x70000000,
		Mask = 0x70000000
	}
	[Flags]
	internal enum MixerControlSubclass
	{
		SwitchBoolean = 0,
		SwitchButton = 0x1000000,
		MeterPolled = 0,
		TimeMicrosecs = 0,
		TimeMillisecs = 0x1000000,
		ListSingle = 0,
		ListMultiple = 0x1000000,
		Mask = 0xF000000
	}
	[Flags]
	internal enum MixerControlUnits
	{
		Custom = 0,
		Boolean = 0x10000,
		Signed = 0x20000,
		Unsigned = 0x30000,
		Decibels = 0x40000,
		Percent = 0x50000,
		Mask = 0xFF0000
	}
	public enum MixerControlType
	{
		Custom = 0,
		BooleanMeter = 268500992,
		SignedMeter = 268566528,
		PeakMeter = 268566529,
		UnsignedMeter = 268632064,
		Boolean = 536936448,
		OnOff = 536936449,
		Mute = 536936450,
		Mono = 536936451,
		Loudness = 536936452,
		StereoEnhance = 536936453,
		Button = 553713664,
		Decibels = 805568512,
		Signed = 805437440,
		Unsigned = 805502976,
		Percent = 805634048,
		Slider = 1073872896,
		Pan = 1073872897,
		QSoundPan = 1073872898,
		Fader = 1342373888,
		Volume = 1342373889,
		Bass = 1342373890,
		Treble = 1342373891,
		Equalizer = 1342373892,
		SingleSelect = 1879113728,
		Mux = 1879113729,
		MultipleSelect = 1895890944,
		Mixer = 1895890945,
		MicroTime = 1610809344,
		MilliTime = 1627586560
	}
	[Flags]
	public enum MixerFlags
	{
		Handle = int.MinValue,
		Mixer = 0,
		MixerHandle = int.MinValue,
		WaveOut = 0x10000000,
		WaveOutHandle = -1879048192,
		WaveIn = 0x20000000,
		WaveInHandle = -1610612736,
		MidiOut = 0x30000000,
		MidiOutHandle = -1342177280,
		MidiIn = 0x40000000,
		MidiInHandle = -1073741824,
		Aux = 0x50000000,
		Value = 0,
		ListText = 1,
		QueryMask = 0xF,
		All = 0,
		OneById = 1,
		OneByType = 2,
		GetLineInfoOfDestination = 0,
		GetLineInfoOfSource = 1,
		GetLineInfoOfLineId = 2,
		GetLineInfoOfComponentType = 3,
		GetLineInfoOfTargetType = 4,
		GetLineInfoOfQueryMask = 0xF
	}
	internal class MixerInterop
	{
		[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto, Pack = 1)]
		public struct MIXERCONTROLDETAILS
		{
			public int cbStruct;

			public int dwControlID;

			public int cChannels;

			public IntPtr hwndOwner;

			public int cbDetails;

			public IntPtr paDetails;
		}

		[StructLayout(LayoutKind.Sequential, Pack = 1)]
		public struct MIXERCAPS
		{
			public ushort wMid;

			public ushort wPid;

			public uint vDriverVersion;

			[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)]
			public string szPname;

			public uint fdwSupport;

			public uint cDestinations;
		}

		[StructLayout(LayoutKind.Sequential, Pack = 1)]
		public struct MIXERLINECONTROLS
		{
			public int cbStruct;

			public int dwLineID;

			public int dwControlID;

			public int cControls;

			public int cbmxctrl;

			public IntPtr pamxctrl;
		}

		[Flags]
		public enum MIXERLINE_LINEF
		{
			MIXERLINE_LINEF_ACTIVE = 1,
			MIXERLINE_LINEF_DISCONNECTED = 0x8000,
			MIXERLINE_LINEF_SOURCE = int.MinValue
		}

		[StructLayout(LayoutKind.Sequential, Pack = 1)]
		public struct MIXERLINE
		{
			public int cbStruct;

			public int dwDestination;

			public int dwSource;

			public int dwLineID;

			public MIXERLINE_LINEF fdwLine;

			public IntPtr dwUser;

			public MixerLineComponentType dwComponentType;

			public int cChannels;

			public int cConnections;

			public int cControls;

			[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 16)]
			public string szShortName;

			[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 64)]
			public string szName;

			public uint dwType;

			public uint dwDeviceID;

			public ushort wMid;

			public ushort wPid;

			public uint vDriverVersion;

			[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)]
			public string szPname;
		}

		[StructLayout(LayoutKind.Sequential, Pack = 1)]
		public struct Bounds
		{
			public int minimum;

			public int maximum;

			public int reserved2;

			public int reserved3;

			public int reserved4;

			public int reserved5;
		}

		[StructLayout(LayoutKind.Sequential, Pack = 1)]
		public struct Metrics
		{
			public int step;

			public int customData;

			public int reserved2;

			public int reserved3;

			public int reserved4;

			public int reserved5;
		}

		[StructLayout(LayoutKind.Sequential, Pack = 1)]
		public struct MIXERCONTROL
		{
			public uint cbStruct;

			public int dwControlID;

			public MixerControlType dwControlType;

			public uint fdwControl;

			public uint cMultipleItems;

			[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 16)]
			public string szShortName;

			[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 64)]
			public string szName;

			public Bounds Bounds;

			public Metrics Metrics;
		}

		public struct MIXERCONTROLDETAILS_BOOLEAN
		{
			public int fValue;
		}

		public struct MIXERCONTROLDETAILS_SIGNED
		{
			public int lValue;
		}

		[StructLayout(LayoutKind.Sequential, Pack = 1)]
		public struct MIXERCONTROLDETAILS_LISTTEXT
		{
			public uint dwParam1;

			public uint dwParam2;

			[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 64)]
			public string szName;
		}

		public struct MIXERCONTROLDETAILS_UNSIGNED
		{
			public uint dwValue;
		}

		public const uint MIXERCONTROL_CONTROLF_UNIFORM = 1u;

		public const uint MIXERCONTROL_CONTROLF_MULTIPLE = 2u;

		public const uint MIXERCONTROL_CONTROLF_DISABLED = 2147483648u;

		public const int MAXPNAMELEN = 32;

		public const int MIXER_SHORT_NAME_CHARS = 16;

		public const int MIXER_LONG_NAME_CHARS = 64;

		[DllImport("winmm.dll", CharSet = CharSet.Ansi)]
		public static extern int mixerGetNumDevs();

		[DllImport("winmm.dll", CharSet = CharSet.Ansi)]
		public static extern MmResult mixerOpen(out IntPtr hMixer, int uMxId, IntPtr dwCallback, IntPtr dwInstance, MixerFlags dwOpenFlags);

		[DllImport("winmm.dll", CharSet = CharSet.Ansi)]
		public static extern MmResult mixerClose(IntPtr hMixer);

		[DllImport("winmm.dll", CharSet = CharSet.Ansi)]
		public static extern MmResult mixerGetControlDetails(IntPtr hMixer, ref MIXERCONTROLDETAILS mixerControlDetails, MixerFlags dwDetailsFlags);

		[DllImport("winmm.dll", CharSet = CharSet.Ansi)]
		public static extern MmResult mixerGetDevCaps(IntPtr nMixerID, ref MIXERCAPS mixerCaps, int mixerCapsSize);

		[DllImport("winmm.dll", CharSet = CharSet.Ansi)]
		public static extern MmResult mixerGetID(IntPtr hMixer, out int mixerID, MixerFlags dwMixerIDFlags);

		[DllImport("winmm.dll", CharSet = CharSet.Ansi)]
		public static extern MmResult mixerGetLineControls(IntPtr hMixer, ref MIXERLINECONTROLS mixerLineControls, MixerFlags dwControlFlags);

		[DllImport("winmm.dll", CharSet = CharSet.Ansi)]
		public static extern MmResult mixerGetLineInfo(IntPtr hMixer, ref MIXERLINE mixerLine, MixerFlags dwInfoFlags);

		[DllImport("winmm.dll", CharSet = CharSet.Ansi)]
		public static extern MmResult mixerMessage(IntPtr hMixer, uint nMessage, IntPtr dwParam1, IntPtr dwParam2);

		[DllImport("winmm.dll", CharSet = CharSet.Ansi)]
		public static extern MmResult mixerSetControlDetails(IntPtr hMixer, ref MIXERCONTROLDETAILS mixerControlDetails, MixerFlags dwDetailsFlags);
	}
	public class MixerLine
	{
		private MixerInterop.MIXERLINE mixerLine;

		private IntPtr mixerHandle;

		private MixerFlags mixerHandleType;

		public string Name => mixerLine.szName;

		public string ShortName => mixerLine.szShortName;

		public int LineId => mixerLine.dwLineID;

		public MixerLineComponentType ComponentType => mixerLine.dwComponentType;

		public string TypeDescription => mixerLine.dwComponentType switch
		{
			MixerLineComponentType.DestinationUndefined => "Undefined Destination", 
			MixerLineComponentType.DestinationDigital => "Digital Destination", 
			MixerLineComponentType.DestinationLine => "Line Level Destination", 
			MixerLineComponentType.DestinationMonitor => "Monitor Destination", 
			MixerLineComponentType.DestinationSpeakers => "Speakers Destination", 
			MixerLineComponentType.DestinationHeadphones => "Headphones Destination", 
			MixerLineComponentType.DestinationTelephone => "Telephone Destination", 
			MixerLineComponentType.DestinationWaveIn => "Wave Input Destination", 
			MixerLineComponentType.DestinationVoiceIn => "Voice Recognition Destination", 
			MixerLineComponentType.SourceUndefined => "Undefined Source", 
			MixerLineComponentType.SourceDigital => "Digital Source", 
			MixerLineComponentType.SourceLine => "Line Level Source", 
			MixerLineComponentType.SourceMicrophone => "Microphone Source", 
			MixerLineComponentType.SourceSynthesizer => "Synthesizer Source", 
			MixerLineComponentType.SourceCompactDisc => "Compact Disk Source", 
			MixerLineComponentType.SourceTelephone => "Telephone Source", 
			MixerLineComponentType.SourcePcSpeaker => "PC Speaker Source", 
			MixerLineComponentType.SourceWaveOut => "Wave Out Source", 
			MixerLineComponentType.SourceAuxiliary => "Auxiliary Source", 
			MixerLineComponentType.SourceAnalog => "Analog Source", 
			_ => "Invalid Component Type", 
		};

		public int Channels => mixerLine.cChannels;

		public int SourceCount => mixerLine.cConnections;

		public int ControlsCount => mixerLine.cControls;

		public bool IsActive => (mixerLine.fdwLine & MixerInterop.MIXERLINE_LINEF.MIXERLINE_LINEF_ACTIVE) != 0;

		public bool IsDisconnected => (mixerLine.fdwLine & MixerInterop.MIXERLINE_LINEF.MIXERLINE_LINEF_DISCONNECTED) != 0;

		public bool IsSource => (mixerLine.fdwLine & MixerInterop.MIXERLINE_LINEF.MIXERLINE_LINEF_SOURCE) != 0;

		public IEnumerable<MixerControl> Controls => MixerControl.GetMixerControls(mixerHandle, this, mixerHandleType);

		public IEnumerable<MixerLine> Sources
		{
			get
			{
				for (int source = 0; source < SourceCount; source++)
				{
					yield return GetSource(source);
				}
			}
		}

		public string TargetName => mixerLine.szPname;

		public MixerLine(IntPtr mixerHandle, int destinationIndex, MixerFlags mixerHandleType)
		{
			//IL_004c: Unknown result type (might be due to invalid IL or missing references)
			this.mixerHandle = mixerHandle;
			this.mixerHandleType = mixerHandleType;
			mixerLine = default(MixerInterop.MIXERLINE);
			mixerLine.cbStruct = Marshal.SizeOf(mixerLine);
			mixerLine.dwDestination = destinationIndex;
			MmException.Try(MixerInterop.mixerGetLineInfo(mixerHandle, ref mixerLine, mixerHandleType | MixerFlags.Mixer), "mixerGetLineInfo");
		}

		public MixerLine(IntPtr mixerHandle, int destinationIndex, int sourceIndex, MixerFlags mixerHandleType)
		{
			//IL_005a: Unknown result type (might be due to invalid IL or missing references)
			this.mixerHandle = mixerHandle;
			this.mixerHandleType = mixerHandleType;
			mixerLine = default(MixerInterop.MIXERLINE);
			mixerLine.cbStruct = Marshal.SizeOf(mixerLine);
			mixerLine.dwDestination = destinationIndex;
			mixerLine.dwSource = sourceIndex;
			MmException.Try(MixerInterop.mixerGetLineInfo(mixerHandle, ref mixerLine, mixerHandleType | MixerFlags.ListText), "mixerGetLineInfo");
		}

		public static int GetMixerIdForWaveIn(int waveInDevice)
		{
			//IL_000f: Unknown result type (might be due to invalid IL or missing references)
			int mixerID = -1;
			MmException.Try(MixerInterop.mixerGetID((IntPtr)waveInDevice, out mixerID, MixerFlags.WaveIn), "mixerGetID");
			return mixerID;
		}

		public MixerLine GetSource(int sourceIndex)
		{
			if (sourceIndex < 0 || sourceIndex >= SourceCount)
			{
				throw new ArgumentOutOfRangeException("sourceIndex");
			}
			return new MixerLine(mixerHandle, mixerLine.dwDestination, sourceIndex, mixerHandleType);
		}

		public override string ToString()
		{
			return $"{Name} {TypeDescription} ({ControlsCount} controls, ID={mixerLine.dwLineID})";
		}
	}
	public enum MixerLineComponentType
	{
		DestinationUndefined = 0,
		DestinationDigital = 1,
		DestinationLine = 2,
		DestinationMonitor = 3,
		DestinationSpeakers = 4,
		DestinationHeadphones = 5,
		DestinationTelephone = 6,
		DestinationWaveIn = 7,
		DestinationVoiceIn = 8,
		SourceUndefined = 4096,
		SourceDigital = 4097,
		SourceLine = 4098,
		SourceMicrophone = 4099,
		SourceSynthesizer = 4100,
		SourceCompactDisc = 4101,
		SourceTelephone = 4102,
		SourcePcSpeaker = 4103,
		SourceWaveOut = 4104,
		SourceAuxiliary = 4105,
		SourceAnalog = 4106
	}
	public class SignedMixerControl : MixerControl
	{
		private MixerInterop.MIXERCONTROLDETAILS_SIGNED signedDetails;

		public int Value
		{
			get
			{
				GetControlDetails();
				return signedDetails.lValue;
			}
			set
			{
				//IL_0052: Unknown result type (might be due to invalid IL or missing references)
				signedDetails.lValue = value;
				mixerControlDetails.paDetails = Marshal.AllocHGlobal(Marshal.SizeOf(signedDetails));
				Marshal.StructureToPtr(signedDetails, mixerControlDetails.paDetails, fDeleteOld: false);
				MmException.Try(MixerInterop.mixerSetControlDetails(mixerHandle, ref mixerControlDetails, MixerFlags.Mixer | mixerHandleType), "mixerSetControlDetails");
				Marshal.FreeHGlobal(mixerControlDetails.paDetails);
			}
		}

		public int MinValue => mixerControl.Bounds.minimum;

		public int MaxValue => mixerControl.Bounds.maximum;

		public double Percent
		{
			get
			{
				return 100.0 * (double)(Value - MinValue) / (double)(MaxValue - MinValue);
			}
			set
			{
				Value = (int)((double)MinValue + value / 100.0 * (double)(MaxValue - MinValue));
			}
		}

		internal SignedMixerControl(MixerInterop.MIXERCONTROL mixerControl, IntPtr mixerHandle, MixerFlags mixerHandleType, int nChannels)
		{
			base.mixerControl = mixerControl;
			base.mixerHandle = mixerHandle;
			base.mixerHandleType = mixerHandleType;
			base.nChannels = nChannels;
			mixerControlDetails = default(MixerInterop.MIXERCONTROLDETAILS);
			GetControlDetails();
		}

		protected override void GetDetails(IntPtr pDetails)
		{
			signedDetails = Marshal.PtrToStructure<MixerInterop.MIXERCONTROLDETAILS_SIGNED>(mixerControlDetails.paDetails);
		}

		public override string ToString()
		{
			return $"{base.ToString()} {Percent}%";
		}
	}
	public class UnsignedMixerControl : MixerControl
	{
		private MixerInterop.MIXERCONTROLDETAILS_UNSIGNED[] unsignedDetails;

		public uint Value
		{
			get
			{
				GetControlDetails();
				return unsignedDetails[0].dwValue;
			}
			set
			{
				//IL_008f: Unknown result type (might be due to invalid IL or missing references)
				int num = Marshal.SizeOf(unsignedDetails[0]);
				mixerControlDetails.paDetails = Marshal.AllocHGlobal(num * nChannels);
				for (int i = 0; i < nChannels; i++)
				{
					unsignedDetails[i].dwValue = value;
					long num2 = mixerControlDetails.paDetails.ToInt64() + num * i;
					Marshal.StructureToPtr(unsignedDetails[i], (IntPtr)num2, fDeleteOld: false);
				}
				MmException.Try(MixerInterop.mixerSetControlDetails(mixerHandle, ref mixerControlDetails, MixerFlags.Mixer | mixerHandleType), "mixerSetControlDetails");
				Marshal.FreeHGlobal(mixerControlDetails.paDetails);
			}
		}

		public uint MinValue => (uint)mixerControl.Bounds.minimum;

		public uint MaxValue => (uint)mixerControl.Bounds.maximum;

		public double Percent
		{
			get
			{
				return 100.0 * (double)(Value - MinValue) / (double)(MaxValue - MinValue);
			}
			set
			{
				Value = (uint)((double)MinValue + value / 100.0 * (double)(MaxValue - MinValue));
			}
		}

		internal UnsignedMixerControl(MixerInterop.MIXERCONTROL mixerControl, IntPtr mixerHandle, MixerFlags mixerHandleType, int nChannels)
		{
			base.mixerControl = mixerControl;
			base.mixerHandle = mixerHandle;
			base.mixerHandleType = mixerHandleType;
			base.nChannels = nChannels;
			mixerControlDetails = default(MixerInterop.MIXERCONTROLDETAILS);
			GetControlDetails();
		}

		protected override void GetDetails(IntPtr pDetails)
		{
			unsignedDetails = new MixerInterop.MIXERCONTROLDETAILS_UNSIGNED[nChannels];
			for (int i = 0; i < nChannels; i++)
			{
				unsignedDetails[i] = Marshal.PtrToStructure<MixerInterop.MIXERCONTROLDETAILS_UNSIGNED>(mixerControlDetails.paDetails);
			}
		}

		public override string ToString()
		{
			return $"{base.ToString()} {Percent}%";
		}
	}
}
namespace NAudio.Wave
{
	internal enum AcmMetrics
	{
		CountDrivers = 1,
		CountCodecs = 2,
		CountConverters = 3,
		CountFilters = 4,
		CountDisabled = 5,
		CountHardware = 6,
		CountLocalDrivers = 20,
		CountLocalCodecs = 21,
		CountLocalConverters = 22,
		CountLocalFilters = 23,
		CountLocalDisabled = 24,
		HardwareWaveInput = 30,
		HardwareWaveOutput = 31,
		MaxSizeFormat = 50,
		MaxSizeFilter = 51,
		DriverSupport = 100,
		DriverPriority = 101
	}
	[Flags]
	internal enum AcmStreamConvertFlags
	{
		BlockAlign = 4,
		Start = 0x10,
		End = 0x20
	}
	[StructLayout(LayoutKind.Explicit)]
	public struct MmTime
	{
		public const int TIME_MS = 1;

		public const int TIME_SAMPLES = 2;

		public const int TIME_BYTES = 4;

		[FieldOffset(0)]
		public uint wType;

		[FieldOffset(4)]
		public uint ms;

		[FieldOffset(4)]
		public uint sample;

		[FieldOffset(4)]
		public uint cb;

		[FieldOffset(4)]
		public uint ticks;

		[FieldOffset(4)]
		public byte smpteHour;

		[FieldOffset(5)]
		public byte smpteMin;

		[FieldOffset(6)]
		public byte smpteSec;

		[FieldOffset(7)]
		public byte smpteFrame;

		[FieldOffset(8)]
		public byte smpteFps;

		[FieldOffset(9)]
		public byte smpteDummy;

		[FieldOffset(10)]
		public byte smptePad0;

		[FieldOffset(11)]
		public byte smptePad1;

		[FieldOffset(4)]
		public uint midiSongPtrPos;
	}
	public enum WaveCallbackStrategy
	{
		FunctionCallback,
		NewWindow,
		ExistingWindow,
		Event
	}
	[StructLayout(LayoutKind.Sequential)]
	public sealed class WaveHeader
	{
		public IntPtr dataBuffer;

		public int bufferLength;

		public int bytesRecorded;

		public IntPtr userData;

		public WaveHeaderFlags flags;

		public int loops;

		public IntPtr next;

		public IntPtr reserved;
	}
	[Flags]
	public enum WaveHeaderFlags
	{
		BeginLoop = 4,
		Done = 1,
		EndLoop = 8,
		InQueue = 0x10,
		Prepared = 2
	}
	[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
	public struct WaveInCapabilities
	{
		private short manufacturerId;

		private short productId;

		private int driverVersion;

		[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)]
		private string productName;

		private SupportedWaveFormat supportedFormats;

		private short channels;

		private short reserved;

		private Guid manufacturerGuid;

		private Guid productGuid;

		private Guid nameGuid;

		private const int MaxProductNameLength = 32;

		public int Channels => channels;

		public string ProductName => productName;

		public Guid NameGuid => nameGuid;

		public Guid ProductGuid => productGuid;

		public Guid ManufacturerGuid => manufacturerGuid;

		public bool SupportsWaveFormat(SupportedWaveFormat waveFormat)
		{
			return (supportedFormats & waveFormat) == waveFormat;
		}
	}
	public static class WaveCapabilitiesHelpers
	{
		public static readonly Guid MicrosoftDefaultManufacturerId = new Guid("d5a47fa8-6d98-11d1-a21a-00a0c9223196");

		public static readonly Guid DefaultWaveOutGuid = new Guid("E36DC310-6D9A-11D1-A21A-00A0C9223196");

		public static readonly Guid DefaultWaveInGuid = new Guid("E36DC311-6D9A-11D1-A21A-00A0C9223196");

		public static string GetNameFromGuid(Guid guid)
		{
			string result = null;
			using (RegistryKey registryKey = Registry.LocalMachine.OpenSubKey("System\\CurrentControlSet\\Control\\MediaCategories"))
			{
				using RegistryKey registryKey2 = registryKey.OpenSubKey(guid.ToString("B"));
				if (registryKey2 != null)
				{
					result = registryKey2.GetValue("Name") as string;
				}
			}
			return result;
		}
	}
	public class WaveInterop
	{
		[Flags]
		public enum WaveInOutOpenFlags
		{
			CallbackNull = 0,
			CallbackFunction = 0x30000,
			CallbackEvent = 0x50000,
			CallbackWindow = 0x10000,
			CallbackThread = 0x20000
		}

		public enum WaveMessage
		{
			WaveInOpen = 958,
			WaveInClose = 959,
			WaveInData = 960,
			WaveOutClose = 956,
			WaveOutDone = 957,
			WaveOutOpen = 955
		}

		public delegate void WaveCallback(IntPtr hWaveOut, WaveMessage message, IntPtr dwInstance, WaveHeader wavhdr, IntPtr dwReserved);

		[DllImport("winmm.dll")]
		public static extern int mmioStringToFOURCC([MarshalAs(UnmanagedType.LPStr)] string s, int flags);

		[DllImport("winmm.dll")]
		public static extern int waveOutGetNumDevs();

		[DllImport("winmm.dll")]
		public static extern MmResult waveOutPrepareHeader(IntPtr hWaveOut, WaveHeader lpWaveOutHdr, int uSize);

		[DllImport("winmm.dll")]
		public static extern MmResult waveOutUnprepareHeader(IntPtr hWaveOut, WaveHeader lpWaveOutHdr, int uSize);

		[DllImport("winmm.dll")]
		public static extern MmResult waveOutWrite(IntPtr hWaveOut, WaveHeader lpWaveOutHdr, int uSize);

		[DllImport("winmm.dll")]
		public static extern MmResult waveOutOpen(out IntPtr hWaveOut, IntPtr uDeviceID, WaveFormat lpFormat, WaveCallback dwCallback, IntPtr dwInstance, WaveInOutOpenFlags dwFlags);

		[DllImport("winmm.dll", EntryPoint = "waveOutOpen")]
		public static extern MmResult waveOutOpenWindow(out IntPtr hWaveOut, IntPtr uDeviceID, WaveFormat lpFormat, IntPtr callbackWindowHandle, IntPtr dwInstance, WaveInOutOpenFlags dwFlags);

		[DllImport("winmm.dll")]
		public static extern MmResult waveOutReset(IntPtr hWaveOut);

		[DllImport("winmm.dll")]
		public static extern MmResult waveOutClose(IntPtr hWaveOut);

		[DllImport("winmm.dll")]
		public static extern MmResult waveOutPause(IntPtr hWaveOut);

		[DllImport("winmm.dll")]
		public static extern MmResult waveOutRestart(IntPtr hWaveOut);

		[DllImport("winmm.dll")]
		public static extern MmResult waveOutGetPosition(IntPtr hWaveOut, ref MmTime mmTime, int uSize);

		[DllImport("winmm.dll")]
		public static extern MmResult waveOutSetVolume(IntPtr hWaveOut, int dwVolume);

		[DllImport("winmm.dll")]
		public static extern MmResult waveOutGetVolume(IntPtr hWaveOut, out int dwVolume);

		[DllImport("winmm.dll", CharSet = CharSet.Auto)]
		public static extern MmResult waveOutGetDevCaps(IntPtr deviceID, out WaveOutCapabilities waveOutCaps, int waveOutCapsSize);

		[DllImport("winmm.dll")]
		public static extern int waveInGetNumDevs();

		[DllImport("winmm.dll", CharSet = CharSet.Auto)]
		public static extern MmResult waveInGetDevCaps(IntPtr deviceID, out WaveInCapabilities waveInCaps, int waveInCapsSize);

		[DllImport("winmm.dll")]
		public static extern MmResult waveInAddBuffer(IntPtr hWaveIn, WaveHeader pwh, int cbwh);

		[DllImport("winmm.dll")]
		public static extern MmResult waveInClose(IntPtr hWaveIn);

		[DllImport("winmm.dll")]
		public static extern MmResult waveInOpen(out IntPtr hWaveIn, IntPtr uDeviceID, WaveFormat lpFormat, WaveCallback dwCallback, IntPtr dwInstance, WaveInOutOpenFlags dwFlags);

		[DllImport("winmm.dll", EntryPoint = "waveInOpen")]
		public static extern MmResult waveInOpenWindow(out IntPtr hWaveIn, IntPtr uDeviceID, WaveFormat lpFormat, IntPtr callbackWindowHandle, IntPtr dwInstance, WaveInOutOpenFlags dwFlags);

		[DllImport("winmm.dll")]
		public static extern MmResult waveInPrepareHeader(IntPtr hWaveIn, WaveHeader lpWaveInHdr, int uSize);

		[DllImport("winmm.dll")]
		public static extern MmResult waveInUnprepareHeader(IntPtr hWaveIn, WaveHeader lpWaveInHdr, int uSize);

		[DllImport("winmm.dll")]
		public static extern MmResult waveInReset(IntPtr hWaveIn);

		[DllImport("winmm.dll")]
		public static extern MmResult waveInStart(IntPtr hWaveIn);

		[DllImport("winmm.dll")]
		public static extern MmResult waveInStop(IntPtr hWaveIn);

		[DllImport("winmm.dll")]
		public static extern MmResult waveInGetPosition(IntPtr hWaveIn, out MmTime mmTime, int uSize);
	}
	[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
	public struct WaveOutCapabilities
	{
		private short manufacturerId;

		private short productId;

		private int driverVersion;

		[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)]
		private string productName;

		private SupportedWaveFormat supportedFormats;

		private short channels;

		private short reserved;

		private WaveOutSupport support;

		private Guid manufacturerGuid;

		private Guid productGuid;

		private Guid nameGuid;

		private const int MaxProductNameLength = 32;

		public int Channels => channels;

		public bool SupportsPlaybackRateControl => (support & WaveOutSupport.PlaybackRate) == WaveOutSupport.PlaybackRate;

		public string ProductName => productName;

		public Guid NameGuid => nameGuid;

		public Guid ProductGuid => productGuid;

		public Guid ManufacturerGuid => manufacturerGuid;

		public bool SupportsWaveFormat(SupportedWaveFormat waveFormat)
		{
			return (supportedFormats & waveFormat) == waveFormat;
		}
	}
	[Flags]
	public enum SupportedWaveFormat
	{
		WAVE_FORMAT_1M08 = 1,
		WAVE_FORMAT_1S08 = 2,
		WAVE_FORMAT_1M16 = 4,
		WAVE_FORMAT_1S16 = 8,
		WAVE_FORMAT_2M08 = 0x10,
		WAVE_FORMAT_2S08 = 0x20,
		WAVE_FORMAT_2M16 = 0x40,
		WAVE_FORMAT_2S16 = 0x80,
		WAVE_FORMAT_4M08 = 0x100,
		WAVE_FORMAT_4S08 = 0x200,
		WAVE_FORMAT_4M16 = 0x400,
		WAVE_FORMAT_4S16 = 0x800,
		WAVE_FORMAT_44M08 = 0x100,
		WAVE_FORMAT_44S08 = 0x200,
		WAVE_FORMAT_44M16 = 0x400,
		WAVE_FORMAT_44S16 = 0x800,
		WAVE_FORMAT_48M08 = 0x1000,
		WAVE_FORMAT_48S08 = 0x2000,
		WAVE_FORMAT_48M16 = 0x4000,
		WAVE_FORMAT_48S16 = 0x8000,
		WAVE_FORMAT_96M08 = 0x10000,
		WAVE_FORMAT_96S08 = 0x20000,
		WAVE_FORMAT_96M16 = 0x40000,
		WAVE_FORMAT_96S16 = 0x80000
	}
	[Flags]
	internal enum WaveOutSupport
	{
		Pitch = 1,
		PlaybackRate = 2,
		Volume = 4,
		LRVolume = 8,
		Sync = 0x10,
		SampleAccurate = 0x20
	}
	public class AcmMp3FrameDecompressor : IMp3FrameDecompressor, IDisposable
	{
		private readonly AcmStream conversionStream;

		private readonly WaveFormat pcmFormat;

		private bool disposed;

		public WaveFormat OutputFormat => pcmFormat;

		public AcmMp3FrameDecompressor(WaveFormat sourceFormat)
		{
			pcmFormat = AcmStream.SuggestPcmFormat(sourceFormat);
			try
			{
				conversionStream = new AcmStream(sourceFormat, pcmFormat);
			}
			catch (Exception)
			{
				disposed = true;
				GC.SuppressFinalize(this);
				throw;
			}
		}

		public int DecompressFrame(Mp3Frame frame, byte[] dest, int destOffset)
		{
			if (frame == null)
			{
				throw new ArgumentNullException("frame", "You must provide a non-null Mp3Frame to decompress");
			}
			Array.Copy(frame.RawData, conversionStream.SourceBuffer, frame.FrameLength);
			int sourceBytesConverted;
			int num = conversionStream.Convert(frame.FrameLength, out sourceBytesConverted);
			if (sourceBytesConverted != frame.FrameLength)
			{
				throw new InvalidOperationException($"Couldn't convert the whole MP3 frame (converted {sourceBytesConverted}/{frame.FrameLength})");
			}
			Array.Copy(conversionStream.DestBuffer, 0, dest, destOffset, num);
			return num;
		}

		public void Reset()
		{
			conversionStream.Reposition();
		}

		public void Dispose()
		{
			if (!disposed)
			{
				disposed = true;
				if (conversionStream != null)
				{
					conversionStream.Dispose();
				}
				GC.SuppressFinalize(this);
			}
		}

		~AcmMp3FrameDecompressor()
		{
			Dispose();
		}
	}
	public class WaveFormatConversionProvider : IWaveProvider, IDisposable
	{
		private readonly AcmStream conversionStream;

		private readonly IWaveProvider sourceProvider;

		private readonly int preferredSourceReadSize;

		private int leftoverDestBytes;

		private int leftoverDestOffset;

		private int leftoverSourceBytes;

		private bool isDisposed;

		public WaveFormat WaveFormat { get; }

		public WaveFormatConversionProvider(WaveFormat targetFormat, IWaveProvider sourceProvider)
		{
			this.sourceProvider = sourceProvider;
			WaveFormat = targetFormat;
			conversionStream = new AcmStream(sourceProvider.WaveFormat, targetFormat);
			preferredSourceReadSize = Math.Min(sourceProvider.WaveFormat.AverageBytesPerSecond, conversionStream.SourceBuffer.Length);
			preferredSourceReadSize -= preferredSourceReadSize % sourceProvider.WaveFormat.BlockAlign;
		}

		public void Reposition()
		{
			leftoverDestBytes = 0;
			leftoverDestOffset = 0;
			leftoverSourceBytes = 0;
			conversionStream.Reposition();
		}

		public int Read(byte[] buffer, int offset, int count)
		{
			int i = 0;
			if (count % WaveFormat.BlockAlign != 0)
			{
				count -= count % WaveFormat.BlockAlign;
			}
			int num5;
			for (; i < count; i += num5)
			{
				int num = Math.Min(count - i, leftoverDestBytes);
				if (num > 0)
				{
					Array.Copy(conversionStream.DestBuffer, leftoverDestOffset, buffer, offset + i, num);
					leftoverDestOffset += num;
					leftoverDestBytes -= num;
					i += num;
				}
				if (i >= count)
				{
					break;
				}
				int num2 = Math.Min(preferredSourceReadSize, conversionStream.SourceBuffer.Length - leftoverSourceBytes);
				int num3 = sourceProvider.Read(conversionStream.SourceBuffer, leftoverSourceBytes, num2) + leftoverSourceBytes;
				if (num3 == 0)
				{
					break;
				}
				int sourceBytesConverted;
				int num4 = conversionStream.Convert(num3, out sourceBytesConverted);
				if (sourceBytesConverted == 0)
				{
					break;
				}
				leftoverSourceBytes = num3 - sourceBytesConverted;
				if (leftoverSourceBytes > 0)
				{
					Buffer.BlockCopy(conversionStream.SourceBuffer, sourceBytesConverted, conversionStream.SourceBuffer, 0, leftoverSourceBytes);
				}
				if (num4 <= 0)
				{
					break;
				}
				int val = count - i;
				num5 = Math.Min(num4, val);
				if (num5 < num4)
				{
					leftoverDestBytes = num4 - num5;
					leftoverDestOffset = num5;
				}
				Array.Copy(conversionStream.DestBuffer, 0, buffer, i + offset, num5);
			}
			return i;
		}

		protected virtual void Dispose(bool disposing)
		{
			if (!isDisposed)
			{
				isDisposed = true;
				conversionStream?.Dispose();
			}
		}

		public void Dispose()
		{
			GC.SuppressFinalize(this);
			Dispose(disposing: true);
		}

		~WaveFormatConversionProvider()
		{
			Dispose(disposing: false);
		}
	}
	public class WaveFormatConversionStream : WaveStream
	{
		private readonly WaveFormatConversionProvider conversionProvider;

		private readonly WaveFormat targetFormat;

		private readonly long length;

		private long position;

		private readonly WaveStream sourceStream;

		private bool isDisposed;

		public override long Position
		{
			get
			{
				return position;
			}
			set
			{
				value -= value % ((WaveStream)this).BlockAlign;
				long num = EstimateDestToSource(value);
				((Stream)(object)sourceStream).Position = num;
				position = EstimateSourceToDest(((Stream)(object)sourceStream).Position);
				conversionProvider.Reposition();
			}
		}

		public override long Length => length;

		public override WaveFormat WaveFormat => targetFormat;

		public WaveFormatConversionStream(WaveFormat targetFormat, WaveStream sourceStream)
		{
			this.sourceStream = sourceStream;
			this.targetFormat = targetFormat;
			conversionProvider = new WaveFormatConversionProvider(targetFormat, (IWaveProvider)(object)sourceStream);
			length = EstimateSourceToDest((int)((Stream)(object)sourceStream).Length);
			position = 0L;
		}

		public static WaveStream CreatePcmStream(WaveStream sourceStream)
		{
			//IL_0006: Unknown result type (might be due to invalid IL or missing references)
			//IL_000c: Invalid comparison between Unknown and I4
			//IL_002f: Unknown result type (might be due to invalid IL or missing references)
			//IL_0039: Invalid comparison between Unknown and I4
			//IL_0043: Unknown result type (might be due to invalid IL or missing references)
			//IL_0049: Expected O, but got Unknown
			if ((int)sourceStream.WaveFormat.Encoding == 1)
			{
				return sourceStream;
			}
			WaveFormat val = AcmStream.SuggestPcmFormat(sourceStream.WaveFormat);
			if (val.SampleRate < 8000)
			{
				if ((int)sourceStream.WaveFormat.Encoding != 163)
				{
					throw new InvalidOperationException("Invalid suggested output format, please explicitly provide a target format");
				}
				val = new WaveFormat(8000, 16, 1);
			}
			return (WaveStream)(object)new WaveFormatConversionStream(val, sourceStream);
		}

		[Obsolete("can be unreliable, use of this method not encouraged")]
		public int SourceToDest(int source)
		{
			return (int)EstimateSourceToDest(source);
		}

		private long EstimateSourceToDest(long source)
		{
			long num = source * targetFormat.AverageBytesPerSecond / sourceStream.WaveFormat.AverageBytesPerSecond;
			return num - num % targetFormat.BlockAlign;
		}

		private long EstimateDestToSource(long dest)
		{
			long num = dest * sourceStream.WaveFormat.AverageBytesPerSecond / targetFormat.AverageBytesPerSecond;
			return (int)(num - num % sourceStream.WaveFormat.BlockAlign);
		}

		[Obsolete("can be unreliable, use of this method not encouraged")]
		public int DestToSource(int dest)
		{
			return (int)EstimateDestToSource(dest);
		}

		public override int Read(byte[] buffer, int offset, int count)
		{
			int num = conversionProvider.Read(buffer, offset, count);
			position += num;
			return num;
		}

		protected override void Dispose(bool disposing)
		{
			if (!isDisposed)
			{
				isDisposed = true;
				if (disposing)
				{
					((Stream)(object)sourceStream).Dispose();
					conversionProvider.Dispose();
				}
			}
			((Stream)this).Dispose(disposing);
		}
	}
	public class WaveInBuffer : IDisposable
	{
		private readonly WaveHeader header;

		private readonly int bufferSize;

		private readonly byte[] buffer;

		private GCHandle hBuffer;

		private IntPtr waveInHandle;

		private GCHandle hHeader;

		private GCHandle hThis;

		public byte[] Data => buffer;

		public bool Done => (header.flags & WaveHeaderFlags.Done) == WaveHeaderFlags.Done;

		public bool InQueue => (header.flags & WaveHeaderFlags.InQueue) == WaveHeaderFlags.InQueue;

		public int BytesRecorded => header.bytesRecorded;

		public int BufferSize => bufferSize;

		public WaveInBuffer(IntPtr waveInHandle, int bufferSize)
		{
			//IL_00b1: Unknown result type (might be due to invalid IL or missing references)
			this.bufferSize = bufferSize;
			buffer = new byte[bufferSize];
			hBuffer = GCHandle.Alloc(buffer, GCHandleType.Pinned);
			this.waveInHandle = waveInHandle;
			header = new WaveHeader();
			hHeader = GCHandle.Alloc(header, GCHandleType.Pinned);
			header.dataBuffer = hBuffer.AddrOfPinnedObject();
			header.bufferLength = bufferSize;
			header.loops = 1;
			hThis = GCHandle.Alloc(this);
			header.userData = (IntPtr)hThis;
			MmException.Try(WaveInterop.waveInPrepareHeader(waveInHandle, header, Marshal.SizeOf(header)), "waveInPrepareHeader");
		}

		public void Reuse()
		{
			//IL_0017: Unknown result type (might be due to invalid IL or missing references)
			//IL_003d: Unknown result type (might be due to invalid IL or missing references)
			//IL_0063: Unknown result type (might be due to invalid IL or missing references)
			MmException.Try(WaveInterop.waveInUnprepareHeader(waveInHandle, header, Marshal.SizeOf(header)), "waveUnprepareHeader");
			MmException.Try(WaveInterop.waveInPrepareHeader(waveInHandle, header, Marshal.SizeOf(header)), "waveInPrepareHeader");
			MmException.Try(WaveInterop.waveInAddBuffer(waveInHandle, header, Marshal.SizeOf(header)), "waveInAddBuffer");
		}

		~WaveInBuffer()
		{
			Dispose(disposing: false);
		}

		public void Dispose()
		{
			GC.SuppressFinalize(this);
			Dispose(disposing: true);
		}

		protected void Dispose(bool disposing)
		{
			//IL_002b: Unknown result type (might be due to invalid IL or missing references)
			if (waveInHandle != IntPtr.Zero)
			{
				WaveInterop.waveInUnprepareHeader(waveInHandle, header, Marshal.SizeOf(header));
				waveInHandle = IntPtr.Zero;
			}
			if (hHeader.IsAllocated)
			{
				hHeader.Free();
			}
			if (hBuffer.IsAllocated)
			{
				hBuffer.Free();
			}
			if (hThis.IsAllocated)
			{
				hThis.Free();
			}
		}
	}
	public class WaveInEvent : IWaveIn, IDisposable
	{
		private readonly AutoResetEvent callbackEvent;

		private readonly SynchronizationContext syncContext;

		private IntPtr waveInHandle;

		private volatile CaptureState captureState;

		private WaveInBuffer[] buffers;

		public static int DeviceCount => WaveInterop.waveInGetNumDevs();

		public int BufferMilliseconds { get; set; }

		public int NumberOfBuffers { get; set; }

		public int DeviceNumber { get; set; }

		public WaveFormat WaveFormat { get; set; }

		public event EventHandler<WaveInEventArgs> DataAvailable;

		public event EventHandler<StoppedEventArgs> RecordingStopped;

		public WaveInEvent()
		{
			//IL_002d: Unknown result type (might be due to invalid IL or missing references)
			//IL_0037: Expected O, but got Unknown
			//IL_0048: Unknown result type (might be due to invalid IL or missing references)
			callbackEvent = new AutoResetEvent(initialState: false);
			syncContext = SynchronizationContext.Current;
			DeviceNumber = 0;
			WaveFormat = new WaveFormat(8000, 16, 1);
			BufferMilliseconds = 100;
			NumberOfBuffers = 3;
			captureState = (CaptureState)0;
		}

		public static WaveInCapabilities GetCapabilities(int devNumber)
		{
			//IL_0018: Unknown result type (might be due to invalid IL or missing references)
			WaveInCapabilities waveInCaps = default(WaveInCapabilities);
			int waveInCapsSize = Marshal.SizeOf(waveInCaps);
			MmException.Try(WaveInterop.waveInGetDevCaps((IntPtr)devNumber, out waveInCaps, waveInCapsSize), "waveInGetDevCaps");
			return waveInCaps;
		}

		private void CreateBuffers()
		{
			int num = BufferMilliseconds * WaveFormat.AverageBytesPerSecond / 1000;
			if (num % WaveFormat.BlockAlign != 0)
			{
				num -= num % WaveFormat.BlockAlign;
			}
			buffers = new WaveInBuffer[NumberOfBuffers];
			for (int i = 0; i < buffers.Length; i++)
			{
				buffers[i] = new WaveInBuffer(waveInHandle, num);
			}
		}

		private void OpenWaveInDevice()
		{
			//IL_0037: Unknown result type (might be due to invalid IL or missing references)
			CloseWaveInDevice();
			MmException.Try(WaveInterop.waveInOpenWindow(out waveInHandle, (IntPtr)DeviceNumber, WaveFormat, callbackEvent.SafeWaitHandle.DangerousGetHandle(), IntPtr.Zero, WaveInterop.WaveInOutOpenFlags.CallbackEvent), "waveInOpen");
			CreateBuffers();
		}

		public void StartRecording()
		{
			//IL_0001: Unknown result type (might be due to invalid IL or missing references)
			//IL_0021: Unknown result type (might be due to invalid IL or missing references)
			//IL_0032: Unknown result type (might be due to invalid IL or missing references)
			if ((int)captureState != 0)
			{
				throw new InvalidOperationException("Already recording");
			}
			OpenWaveInDevice();
			MmException.Try(WaveInterop.waveInStart(waveInHandle), "waveInStart");
			captureState = (CaptureState)1;
			ThreadPool.QueueUserWorkItem(delegate
			{
				RecordThread();
			}, null);
		}

		private void RecordThread()
		{
			//IL_000f: Unknown result type (might be due to invalid IL or missing references)
			Exception e = null;
			try
			{
				DoRecording();
			}
			catch (Exception ex)
			{
				e = ex;
			}
			finally
			{
				captureState = (CaptureState)0;
				RaiseRecordingStoppedEvent(e);
			}
		}

		private void DoRecording()
		{
			//IL_0002: Unknown result type (might be due to invalid IL or missing references)
			//IL_009e: Unknown result type (might be due to invalid IL or missing references)
			//IL_00a6: Invalid comparison between Unknown and I4
			//IL_0083: Unknown result type (might be due to invalid IL or missing references)
			//IL_008b: Invalid comparison between Unknown and I4
			//IL_0078: Unknown result type (might be due to invalid IL or missing references)
			//IL_0082: Expected O, but got Unknown
			captureState = (CaptureState)2;
			WaveInBuffer[] array = buffers;
			foreach (WaveInBuffer waveInBuffer in array)
			{
				if (!waveInBuffer.InQueue)
				{
					waveInBuffer.Reuse();
				}
			}
			while ((int)captureState == 2)
			{
				if (!callbackEvent.WaitOne())
				{
					continue;
				}
				array = buffers;
				foreach (WaveInBuffer waveInBuffer2 in array)
				{
					if (waveInBuffer2.Done)
					{
						if (waveInBuffer2.BytesRecorded > 0)
						{
							this.DataAvailable?.Invoke(this, new WaveInEventArgs(waveInBuffer2.Data, waveInBuffer2.BytesRecorded));
						}
						if ((int)captureState == 2)
						{
							waveInBuffer2.Reuse();
						}
					}
				}
			}
		}

		private void RaiseRecordingStoppedEvent(Exception e)
		{
			//IL_003d: Unknown result type (might be due to invalid IL or missing references)
			//IL_0047: Expected O, but got Unknown
			EventHandler<StoppedEventArgs> handler = this.RecordingStopped;
			if (handler == null)
			{
				return;
			}
			if (syncContext == null)
			{
				handler(this, new StoppedEventArgs(e));
				return;
			}
			syncContext.Post(delegate
			{
				//IL_0012: Unknown result type (might be due to invalid IL or missing references)
				//IL_001c: Expected O, but got Unknown
				handler(this, new StoppedEventArgs(e));
			}, null);
		}

		public void StopRecording()
		{
			//IL_0001: Unknown result type (might be due to invalid IL or missing references)
			//IL_000c: Unknown result type (might be due to invalid IL or missing references)
			//IL_0019: Unknown result type (might be due to invalid IL or missing references)
			//IL_002e: Unknown result type (might be due to invalid IL or missing references)
			if ((int)captureState != 0)
			{
				captureState = (CaptureState)3;
				MmException.Try(WaveInterop.waveInStop(waveInHandle), "waveInStop");
				MmException.Try(WaveInterop.waveInReset(waveInHandle), "waveInReset");
				callbackEvent.Set();
			}
		}

		public long GetPosition()
		{
			//IL_001e: Unknown result type (might be due to invalid IL or missing references)
			MmTime mmTime = default(MmTime);
			mmTime.wType = 4u;
			MmException.Try(WaveInterop.waveInGetPosition(waveInHandle, out mmTime, Marshal.SizeOf(mmTime)), "waveInGetPosition");
			if (mmTime.wType != 4)
			{
				throw new Exception($"waveInGetPosition: wType -> Expected {4}, Received {mmTime.wType}");
			}
			return mmTime.cb;
		}

		protected virtual void Dispose(bool disposing)
		{
			//IL_0004: Unknown result type (might be due to invalid IL or missing references)
			if (disposing)
			{
				if ((int)captureState != 0)
				{
					StopRecording();
				}
				CloseWaveInDevice();
			}
		}

		private void CloseWaveInDevice()
		{
			//IL_0006: Unknown result type (might be due to invalid IL or missing references)
			//IL_0041: Unknown result type (might be due to invalid IL or missing references)
			WaveInterop.waveInReset(waveInHandle);
			if (buffers != null)
			{
				for (int i = 0; i < buffers.Length; i++)
				{
					buffers[i].Dispose();
				}
				buffers = null;
			}
			WaveInterop.waveInClose(waveInHandle);
			waveInHandle = IntPtr.Zero;
		}

		public MixerLine GetMixerLine()
		{
			if (waveInHandle != IntPtr.Zero)
			{
				return new MixerLine(waveInHandle, 0, MixerFlags.WaveInHandle);
			}
			return new MixerLine((IntPtr)DeviceNumber, 0, MixerFlags.WaveIn);
		}

		public void Dispose()
		{
			Dispose(disposing: true);
			GC.SuppressFinalize(this);
		}
	}
	public class WaveOutBuffer : IDisposable
	{
		private readonly WaveHeader header;

		private readonly int bufferSize;

		private readonly byte[] buffer;

		private readonly IWaveProvider waveStream;

		private readonly object waveOutLock;

		private GCHandle hBuffer;

		private IntPtr hWaveOut;

		private GCHandle hHeader;

		private GCHandle hThis;

		public bool InQueue => (header.flags & WaveHeaderFlags.InQueue) == WaveHeaderFlags.InQueue;

		public int BufferSize => bufferSize;

		public WaveOutBuffer(IntPtr hWaveOut, int bufferSize, IWaveProvider bufferFillStream, object waveOutLock)
		{
			//IL_00cd: Unknown result type (might be due to invalid IL or missing references)
			this.bufferSize = bufferSize;
			buffer = new byte[bufferSize];
			hBuffer = GCHandle.Alloc(buffer, GCHandleType.Pinned);
			this.hWaveOut = hWaveOut;
			waveStream = bufferFillStream;
			this.waveOutLock = waveOutLock;
			header = new WaveHeader();
			hHeader = GCHandle.Alloc(header, GCHandleType.Pinned);
			header.dataBuffer = hBuffer.AddrOfPinnedObject();
			header.bufferLength = bufferSize;
			header.loops = 1;
			hThis = GCHandle.Alloc(this);
			header.userData = (IntPtr)hThis;
			lock (waveOutLock)
			{
				MmException.Try(WaveInterop.waveOutPrepareHeader(hWaveOut, header, Marshal.SizeOf(header)), "waveOutPrepareHeader");
			}
		}

		~WaveOutBuffer()
		{
			Dispose(disposing: false);
		}

		public void Dispose()
		{
			GC.SuppressFinalize(this);
			Dispose(disposing: true);
		}

		protected void Dispose(bool disposing)
		{
			//IL_0084: Unknown result type (might be due to invalid IL or missing references)
			if (hHeader.IsAllocated)
			{
				hHeader.Free();
			}
			if (hBuffer.IsAllocated)
			{
				hBuffer.Free();
			}
			if (hThis.IsAllocated)
			{
				hThis.Free();
			}
			if (hWaveOut != IntPtr.Zero)
			{
				lock (waveOutLock)
				{
					WaveInterop.waveOutUnprepareHeader(hWaveOut, header, Marshal.SizeOf(header));
				}
				hWaveOut = IntPtr.Zero;
			}
		}

		public bool OnDone()
		{
			int num;
			lock (waveStream)
			{
				num = waveStream.Read(buffer, 0, buffer.Length);
			}
			if (num == 0)
			{
				return false;
			}
			for (int i = num; i < buffer.Length; i++)
			{
				buffer[i] = 0;
			}
			WriteToWaveOut();
			return true;
		}

		private void WriteToWaveOut()
		{
			//IL_0028: Unknown result type (might be due to invalid IL or missing references)
			//IL_002d: Unknown result type (might be due to invalid IL or missing references)
			//IL_003a: Unknown result type (might be due to invalid IL or missing references)
			//IL_003d: Unknown result type (might be due to invalid IL or missing references)
			//IL_0043: Unknown result type (might be due to invalid IL or missing references)
			MmResult val;
			lock (waveOutLock)
			{
				val = WaveInterop.waveOutWrite(hWaveOut, header, Marshal.SizeOf(header));
			}
			if ((int)val != 0)
			{
				throw new MmException(val, "waveOutWrite");
			}
			GC.KeepAlive(this);
		}
	}
	public class WaveOutEvent : IWavePlayer, IDisposable, IWavePosition
	{
		private readonly object waveOutLock;

		private readonly SynchronizationContext syncContext;

		private IntPtr hWaveOut;

		private WaveOutBuffer[] buffers;

		private IWaveProvider waveStream;

		private volatile PlaybackState playbackState;

		private AutoResetEvent callbackEvent;

		public int DesiredLatency { get; set; }

		public int NumberOfBuffers { get; set; }

		public int DeviceNumber { get; set; } = -1;


		public WaveFormat OutputWaveFormat => waveStream.WaveFormat;

		public PlaybackState PlaybackState => playbackState;

		public float Volume
		{
			get
			{
				return WaveOutUtils.GetWaveOutVolume(hWaveOut, waveOutLock);
			}
			set
			{
				WaveOutUtils.SetWaveOutVolume(value, hWaveOut, waveOutLock);
			}
		}

		public event EventHandler<StoppedEventArgs> PlaybackStopped;

		public WaveOutEvent()
		{
			syncContext = SynchronizationContext.Current;
			if (syncContext != null && (syncContext.GetType().Name == "LegacyAspNetSynchronizationContext" || syncContext.GetType().Name == "AspNetSynchronizationContext"))
			{
				syncContext = null;
			}
			DesiredLatency = 300;
			NumberOfBuffers = 2;
			waveOutLock = new object();
		}

		public void Init(IWaveProvider waveProvider)
		{
			//IL_0001: Unknown result type (might be due to invalid IL or missing references)
			//IL_00af: Unknown result type (might be due to invalid IL or missing references)
			//IL_00b4: Unknown result type (might be due to invalid IL or missing references)
			//IL_00c1: Unknown result type (might be due to invalid IL or missing references)
			//IL_00df: Unknown result type (might be due to invalid IL or missing references)
			if ((int)playbackState != 0)
			{
				throw new InvalidOperationException("Can't re-initialize during playback");
			}
			if (hWaveOut != IntPtr.Zero)
			{
				DisposeBuffers();
				CloseWaveOut();
			}
			callbackEvent = new AutoResetEvent(initialState: false);
			waveStream = waveProvider;
			int bufferSize = waveProvider.WaveFormat.ConvertLatencyToByteSize((DesiredLatency + NumberOfBuffers - 1) / NumberOfBuffers);
			MmResult val;
			lock (waveOutLock)
			{
				val = WaveInterop.waveOutOpenWindow(out hWaveOut, (IntPtr)DeviceNumber, waveStream.WaveFormat, callbackEvent.SafeWaitHandle.DangerousGetHandle(), IntPtr.Zero, WaveInterop.WaveInOutOpenFlags.CallbackEvent);
			}
			MmException.Try(val, "waveOutOpen");
			buffers = new WaveOutBuffer[NumberOfBuffers];
			playbackState = (PlaybackState)0;
			for (int i = 0; i < NumberOfBuffers; i++)
			{
				buffers[i] = new WaveOutBuffer(hWaveOut, bufferSize, waveStream, waveOutLock);
			}
		}

		public void Play()
		{
			//IL_001c: Unknown result type (might be due to invalid IL or missing references)
			//IL_004f: Unknown result type (might be due to invalid IL or missing references)
			//IL_0057: Invalid comparison between Unknown and I4
			//IL_0027: Unknown result type (might be due to invalid IL or missing references)
			if (buffers == null || waveStream == null)
			{
				throw new InvalidOperationException("Must call Init first");
			}
			if ((int)playbackState == 0)
			{
				playbackState = (PlaybackState)1;
				callbackEvent.Set();
				ThreadPool.QueueUserWorkItem(delegate
				{
					PlaybackThread();
				}, null);
			}
			else if ((int)playbackState == 2)
			{
				Resume();
				callbackEvent.Set();
			}
		}

		private void PlaybackThread()
		{
			//IL_000f: Unknown result type (might be due to invalid IL or missing references)
			Exception e = null;
			try
			{
				DoPlayback();
			}
			catch (Exception ex)
			{
				e = ex;
			}
			finally
			{
				playbackState = (PlaybackState)0;
				RaisePlaybackStoppedEvent(e);
			}
		}

		private void DoPlayback()
		{
			//IL_0073: Unknown result type (might be due to invalid IL or missing references)
			//IL_0021: Unknown result type (might be due to invalid IL or missing references)
			//IL_0029: Invalid comparison between Unknown and I4
			//IL_0016: Unknown result type (might be due to invalid IL or missing references)
			//IL_005f: Unknown result type (might be due to invalid IL or missing references)
			while ((int)playbackState != 0)
			{
				if (!callbackEvent.WaitOne(DesiredLatency))
				{
					_ = playbackState;
					_ = 1;
				}
				if ((int)playbackState != 1)
				{
					continue;
				}
				int num = 0;
				WaveOutBuffer[] array = buffers;
				foreach (WaveOutBuffer waveOutBuffer in array)
				{
					if (waveOutBuffer.InQueue || waveOutBuffer.OnDone())
					{
						num++;
					}
				}
				if (num == 0)
				{
					playbackState = (PlaybackState)0;
					callbackEvent.Set();
				}
			}
		}

		public void Pause()
		{
			//IL_0001: Unknown result type (might be due to invalid IL or missing references)
			//IL_0009: Invalid comparison between Unknown and I4
			//IL_000d: Unknown result type (might be due to invalid IL or missing references)
			//IL_002b: Unknown result type (might be due to invalid IL or missing references)
			//IL_0030: Unknown result type (might be due to invalid IL or missing references)
			//IL_003d: Unknown result type (might be due to invalid IL or missing references)
			//IL_0040: Unknown result type (might be due to invalid IL or missing references)
			//IL_0046: Unknown result type (might be due to invalid IL or missing references)
			if ((int)playbackState == 1)
			{
				playbackState = (PlaybackState)2;
				MmResult val;
				lock (waveOutLock)
				{
					val = WaveInterop.waveOutPause(hWaveOut);
				}
				if ((int)val != 0)
				{
					throw new MmException(val, "waveOutPause");
				}
			}
		}

		private void Resume()
		{
			//IL_0001: Unknown result type (might be due to invalid IL or missing references)
			//IL_0009: Invalid comparison between Unknown and I4
			//IL_0022: Unknown result type (might be due to invalid IL or missing references)
			//IL_0027: Unknown result type (might be due to invalid IL or missing references)
			//IL_0034: Unknown result type (might be due to invalid IL or missing references)
			//IL_0045: Unknown result type (might be due to invalid IL or missing references)
			//IL_0037: Unknown result type (might be due to invalid IL or missing references)
			//IL_003d: Unknown result type (might be due to invalid IL or missing references)
			if ((int)playbackState == 2)
			{
				MmResult val;
				lock (waveOutLock)
				{
					val = WaveInterop.waveOutRestart(hWaveOut);
				}
				if ((int)val != 0)
				{
					throw new MmException(val, "waveOutRestart");
				}
				playbackState = (PlaybackState)1;
			}
		}

		public void Stop()
		{
			//IL_0001: Unknown result type (might be due to invalid IL or missing references)
			//IL_000c: Unknown result type (might be due to invalid IL or missing references)
			//IL_002a: Unknown result type (might be due to invalid IL or missing references)
			//IL_002f: Unknown result type (might be due to invalid IL or missing references)
			//IL_003c: Unknown result type (might be due to invalid IL or missing references)
			//IL_003f: Unknown result type (might be due to invalid IL or missing references)
			//IL_0045: Unknown result type (might be due to invalid IL or missing references)
			if ((int)playbackState != 0)
			{
				playbackState = (PlaybackState)0;
				MmResult val;
				lock (waveOutLock)
				{
					val = WaveInterop.waveOutReset(hWaveOut);
				}
				if ((int)val != 0)
				{
					throw new MmException(val, "waveOutReset");
				}
				callbackEvent.Set();
			}
		}

		public long GetPosition()
		{
			return WaveOutUtils.GetPositionBytes(hWaveOut, waveOutLock);
		}

		public void Dispose()
		{
			GC.SuppressFinalize(this);
			Dispose(disposing: true);
		}

		protected void Dispose(bool disposing)
		{
			Stop();
			if (disposing)
			{
				DisposeBuffers();
			}
			CloseWaveOut();
		}

		private void CloseWaveOut()
		{
			//IL_0043: Unknown result type (might be due to invalid IL or missing references)
			if (callbackEvent != null)
			{
				callbackEvent.Close();
				callbackEvent = null;
			}
			lock (waveOutLock)
			{
				if (hWaveOut != IntPtr.Zero)
				{
					WaveInterop.waveOutClose(hWaveOut);
					hWaveOut = IntPtr.Zero;
				}
			}
		}

		private void DisposeBuffers()
		{
			if (buffers != null)
			{
				WaveOutBuffer[] array = buffers;
				for (int i = 0; i < array.Length; i++)
				{
					array[i].Dispose();
				}
				buffers = null;
			}
		}

		~WaveOutEvent()
		{
			Dispose(disposing: false);
		}

		private void RaisePlaybackStoppedEvent(Exception e)
		{
			//IL_003d: Unknown result type (might be due to invalid IL or missing references)
			//IL_0047: Expected O, but got Unknown
			EventHandler<StoppedEventArgs> handler = this.PlaybackStopped;
			if (handler == null)
			{
				return;
			}
			if (syncContext == null)
			{
				handler(this, new StoppedEventArgs(e));
				return;
			}
			syncContext.Post(delegate
			{
				//IL_0012: Unknown result type (might be due to invalid IL or missing references)
				//IL_001c: Expected O, but got Unknown
				handler(this, new StoppedEventArgs(e));
			}, null);
		}
	}
	public static class WaveOutUtils
	{
		public static float GetWaveOutVolume(IntPtr hWaveOut, object lockObject)
		{
			//IL_000f: Unknown result type (might be due to invalid IL or missing references)
			//IL_0014: Unknown result type (might be due to invalid IL or missing references)
			//IL_0021: Unknown result type (might be due to invalid IL or missing references)
			MmResult val;
			int dwVolume;
			lock (lockObject)
			{
				val = WaveInterop.waveOutGetVolume(hWaveOut, out dwVolume);
			}
			MmException.Try(val, "waveOutGetVolume");
			return (float)(dwVolume & 0xFFFF) / 65535f;
		}

		public static void SetWaveOutVolume(float value, IntPtr hWaveOut, object lockObject)
		{
			//IL_0056: Unknown result type (might be due to invalid IL or missing references)
			//IL_005b: Unknown result type (might be due to invalid IL or missing references)
			//IL_0069: Unknown result type (might be due to invalid IL or missing references)
			if (value < 0f)
			{
				throw new ArgumentOutOfRangeException("value", "Volume must be between 0.0 and 1.0");
			}
			if (value > 1f)
			{
				throw new ArgumentOutOfRangeException("value", "Volume must be between 0.0 and 1.0");
			}
			int dwVolume = (int)(value * 65535f) + ((int)(value * 65535f) << 16);
			MmResult val;
			lock (lockObject)
			{
				val = WaveInterop.waveOutSetVolume(hWaveOut, dwVolume);
			}
			MmException.Try(val, "waveOutSetVolume");
		}

		public static long GetPositionBytes(IntPtr hWaveOut, object lockObject)
		{
			//IL_0025: Unknown result type (might be due to invalid IL or missing references)
			lock (lockObject)
			{
				MmTime mmTime = default(MmTime);
				mmTime.wType = 4u;
				MmException.Try(WaveInterop.waveOutGetPosition(hWaveOut, ref mmTime, Marshal.SizeOf(mmTime)), "waveOutGetPosition");
				if (mmTime.wType != 4)
				{
					throw new Exception($"waveOutGetPosition: wType -> Expected {4}, Received {mmTime.wType}");
				}
				return mmTime.cb;
			}
		}
	}
}
namespace NAudio.Wave.Compression
{
	public class AcmDriver : IDisposable
	{
		private static List<AcmDriver> drivers;

		private AcmDriverDetails details;

		private IntPtr driverId;

		private IntPtr driverHandle;

		private List<AcmFormatTag> formatTags;

		private List<AcmFormat> tempFormatsList;

		private IntPtr localDllHandle;

		public int MaxFormatSize
		{
			get
			{
				//IL_000a: Unknown result type (might be due to invalid IL or missing references)
				MmException.Try(AcmInterop.acmMetrics(driverHandle, AcmMetrics.MaxSizeFormat, out var output), "acmMetrics");
				return output;
			}
		}

		public string ShortName => details.shortName;

		public string LongName => details.longName;

		public IntPtr DriverId => driverId;

		public IEnumerable<AcmFormatTag> FormatTags
		{
			get
			{
				//IL_005f: Unknown result type (might be due to invalid IL or missing references)
				if (formatTags == null)
				{
					if (driverHandle == IntPtr.Zero)
					{
						throw new InvalidOperationException("Driver must be opened first");
					}
					formatTags = new List<AcmFormatTag>();
					AcmFormatTagDetails formatTagDetails = default(AcmFormatTagDetails);
					formatTagDetails.structureSize = Marshal.SizeOf(formatTagDetails);
					MmException.Try(AcmInterop.acmFormatTagEnum(driverHandle, ref formatTagDetails, AcmFormatTagEnumCallback, IntPtr.Zero, 0), "acmFormatTagEnum");
				}
				return formatTags;
			}
		}

		public static bool IsCodecInstalled(string shortName)
		{
			foreach (AcmDriver item in EnumerateAcmDrivers())
			{
				if (item.ShortName == shortName)
				{
					return true;
				}
			}
			return false;
		}

		public static AcmDriver AddLocalDriver(string driverFile)
		{
			//IL_0050: Unknown result type (might be due to invalid IL or missing references)
			//IL_0055: Unknown result type (might be due to invalid IL or missing references)
			//IL_0056: Unknown result type (might be due to invalid IL or missing references)
			//IL_0060: Unknown result type (might be due to invalid IL or missing references)
			//IL_0066: Unknown result type (might be due to invalid IL or missing references)
			IntPtr intPtr = NativeMethods.LoadLibrary(driverFile);
			if (intPtr == IntPtr.Zero)
			{
				throw new ArgumentException("Failed to load driver file");
			}
			IntPtr procAddress = NativeMethods.GetProcAddress(intPtr, "DriverProc");
			if (procAddress == IntPtr.Zero)
			{
				NativeMethods.FreeLibrary(intPtr);
				throw new ArgumentException("Failed to discover DriverProc");
			}
			IntPtr hAcmDriver;
			MmResult val = AcmInterop.acmDriverAdd(out hAcmDriver, intPtr, procAddress, 0, AcmDriverAddFlags.Function);
			if ((int)val != 0)
			{
				NativeMethods.FreeLibrary(intPtr);
				throw new MmException(val, "acmDriverAdd");
			}
			AcmDriver acmDriver = new AcmDriver(hAcmDriver);
			if (string.IsNullOrEmpty(acmDriver.details.longName))
			{
				acmDriver.details.longName = "Local driver: " + Path.GetFileName(driverFile);
				acmDriver.localDllHandle = intPtr;
			}
			return acmDriver;
		}

		public static void RemoveLocalDriver(AcmDriver localDriver)
		{
			//IL_0024: Unknown result type (might be due to invalid IL or missing references)
			if (localDriver.localDllHandle == IntPtr.Zero)
			{
				throw new ArgumentException("Please pass in the AcmDriver returned by the AddLocalDriver method");
			}
			MmResult val = AcmInterop.acmDriverRemove(localDriver.driverId, 0);
			NativeMethods.FreeLibrary(localDriver.localDllHandle);
			MmException.Try(val, "acmDriverRemove");
		}

		public static bool ShowFormatChooseDialog(IntPtr ownerWindowHandle, string windowTitle, AcmFormatEnumFlags enumFlags, WaveFormat enumFormat, out WaveFormat selectedFormat, out string selectedFormatDescription, out string selectedFormatTagDescription)
		{
			//IL_0099: Unknown result type (might be due to invalid IL or missing references)
			//IL_009e: Unknown result type (might be due to invalid IL or missing references)
			//IL_00ab: Unknown result type (might be due to invalid IL or missing references)
			//IL_00e4: Unknown result type (might be due to invalid IL or missing references)
			//IL_00ea: Invalid comparison between Unknown and I4
			//IL_00fb: Unknown result type (might be due to invalid IL or missing references)
			//IL_00fd: Invalid comparison between Unknown and I4
			//IL_00ec: Unknown result type (might be due to invalid IL or missing references)
			//IL_00ef: Unknown result type (might be due to invalid IL or missing references)
			//IL_00f5: Unknown result type (might be due to invalid IL or missing references)
			AcmFormatChoose formatChoose = default(AcmFormatChoose);
			formatChoose.structureSize = Marshal.SizeOf(formatChoose);
			formatChoose.styleFlags = AcmFormatChooseStyleFlags.None;
			formatChoose.ownerWindowHandle = ownerWindowHandle;
			int num = 200;
			formatChoose.selectedWaveFormatPointer = Marshal.AllocHGlobal(num);
			formatChoose.selectedWaveFormatByteSize = num;
			formatChoose.title = windowTitle;
			formatChoose.name = null;
			formatChoose.formatEnumFlags = enumFlags;
			formatChoose.waveFormatEnumPointer = IntPtr.Zero;
			if (enumFormat != null)
			{
				IntPtr intPtr = Marshal.AllocHGlobal(Marshal.SizeOf<WaveFormat>(enumFormat));
				Marshal.StructureToPtr<WaveFormat>(enumFormat, intPtr, fDeleteOld: false);
				formatChoose.waveFormatEnumPointer = intPtr;
			}
			formatChoose.instanceHandle = IntPtr.Zero;
			formatChoose.templateName = null;
			MmResult val = AcmInterop.acmFormatChoose(ref formatChoose);
			selectedFormat = null;
			selectedFormatDescription = null;
			selectedFormatTagDescription = null;
			if ((int)val == 0)
			{
				selectedFormat = WaveFormat.MarshalFromPtr(formatChoose.selectedWaveFormatPointer);
				selectedFormatDescription = formatChoose.formatDescription;
				selectedFormatTagDescription = formatChoose.formatTagDescription;
			}
			Marshal.FreeHGlobal(formatChoose.waveFormatEnumPointer);
			Marshal.FreeHGlobal(formatChoose.selectedWaveFormatPointer);
			if ((int)val != 515 && (int)val != 0)
			{
				throw new MmException(val, "acmFormatChoose");
			}
			return (int)val == 0;
		}

		public static AcmDriver FindByShortName(string shortName)
		{
			foreach (AcmDriver item in EnumerateAcmDrivers())
			{
				if (item.ShortName == shortName)
				{
					return item;
				}
			}
			return null;
		}

		public static IEnumerable<AcmDriver> EnumerateAcmDrivers()
		{
			//IL_001c: Unknown result type (might be due to invalid IL or missing references)
			drivers = new List<AcmDriver>();
			MmException.Try(AcmInterop.acmDriverEnum(DriverEnumCallback, IntPtr.Zero, (AcmDriverEnumFlags)0), "acmDriverEnum");
			return drivers;
		}

		private static bool DriverEnumCallback(IntPtr hAcmDriver, IntPtr dwInstance, AcmDriverDetailsSupportFlags flags)
		{
			drivers.Add(new AcmDriver(hAcmDriver));
			return true;
		}

		private AcmDriver(IntPtr hAcmDriver)
		{
			//IL_0037: Unknown result type (might be due to invalid IL or missing references)
			driverId = hAcmDriver;
			details = default(AcmDriverDetails);
			details.structureSize = Marshal.SizeOf(details);
			MmException.Try(AcmInterop.acmDriverDetails(hAcmDriver, ref details, 0), "acmDriverDetails");
		}

		public override string ToString()
		{
			return LongName;
		}

		public IEnumerable<AcmFormat> GetFormats(AcmFormatTag formatTag)
		{
			//IL_005e: Unknown result type (might be due to invalid IL or missing references)
			//IL_0068: Expected I4, but got Unknown
			//IL_0082: Unknown result type (might be due to invalid IL or missing references)
			if (driverHandle == IntPtr.Zero)
			{
				throw new InvalidOperationException("Driver must be opened first");
			}
			tempFormatsList = new List<AcmFormat>();
			AcmFormatDetails formatDetails = default(AcmFormatDetails);
			formatDetails.structSize = Marshal.SizeOf(formatDetails);
			formatDetails.waveFormatByteSize = 1024;
			formatDetails.waveFormatPointer = Marshal.AllocHGlobal(formatDetails.waveFormatByteSize);
			formatDetails.formatTag = (int)formatTag.FormatTag;
			MmResult val = AcmInterop.acmFormatEnum(driverHandle, ref formatDetails, AcmFormatEnumCallback, IntPtr.Zero, AcmFormatEnumFlags.None);
			Marshal.FreeHGlobal(formatDetails.waveFormatPointer);
			MmException.Try(val, "acmFormatEnum");
			return tempFormatsList;
		}

		public void Open()
		{
			//IL_001f: Unknown result type (might be due to invalid IL or missing references)
			if (driverHandle == IntPtr.Zero)
			{
				MmException.Try(AcmInterop.acmDriverOpen(out driverHandle, DriverId, 0), "acmDriverOpen");
			}
		}

		public void Close()
		{
			//IL_0019: Unknown result type (might be due to invalid IL or missing references)
			if (driverHandle != IntPtr.Zero)
			{
				MmException.Try(AcmInterop.acmDriverClose(driverHandle, 0), "acmDriverClose");
				driverHandle = IntPtr.Zero;
			}
		}

		private bool AcmFormatTagEnumCallback(IntPtr hAcmDriverId, ref AcmFormatTagDetails formatTagDetails, IntPtr dwInstance, AcmDriverDetailsSupportFlags flags)
		{
			formatTags.Add(new AcmFormatTag(formatTagDetails));
			return true;
		}

		private bool AcmFormatEnumCallback(IntPtr hAcmDriverId, ref AcmFormatDetails formatDetails, IntPtr dwInstance, AcmDriverDetailsSupportFlags flags)
		{
			tempFormatsList.Add(new AcmFormat(formatDetails));
			return true;
		}

		public void Dispose()
		{
			if (driverHandle != IntPtr.Zero)
			{
				Close();
				GC.SuppressFinalize(this);
			}
		}
	}
	internal enum AcmDriverAddFlags
	{
		Local = 0,
		Global = 8,
		Function = 3,
		NotifyWindowHandle = 4
	}
	[StructLayout(LayoutKind.Sequential, Pack = 2)]
	internal struct AcmDriverDetails
	{
		public int structureSize;

		public uint fccType;

		public uint fccComp;

		public ushort manufacturerId;

		public ushort productId;

		public uint acmVersion;

		public uint driverVersion;

		public AcmDriverDetailsSupportFlags supportFlags;

		public int formatTagsCount;

		public int filterTagsCount;

		public IntPtr hicon;

		[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)]
		public string shortName;

		[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 128)]
		public string longName;

		[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 80)]
		public string copyright;

		[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 128)]
		public string licensing;

		[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 512)]
		public string features;

		private const int ShortNameChars = 32;

		private const int LongNameChars = 128;

		private const int CopyrightChars = 80;

		private const int LicensingChars = 128;

		private const int FeaturesChars = 512;
	}
	[Flags]
	public enum AcmDriverDetailsSupportFlags
	{
		Codec = 1,
		Converter = 2,
		Filter = 4,
		Hardware = 8,
		Async = 0x10,
		Local = 0x40000000,
		Disabled = int.MinValue
	}
	[Flags]
	internal enum AcmDriverEnumFlags
	{
		NoLocal = 0x40000000,
		Disabled = int.MinValue
	}
	public class AcmFormat
	{
		private readonly AcmFormatDetails formatDetails;

		public int FormatIndex => formatDetails.formatIndex;

		public WaveFormatEncoding FormatTag => (WaveFormatEncoding)(ushort)formatDetails.formatTag;

		public AcmDriverDetailsSupportFlags SupportFlags => formatDetails.supportFlags;

		public WaveFormat WaveFormat { get; private set; }

		public int WaveFormatByteSize => formatDetails.waveFormatByteSize;

		public string FormatDescription => formatDetails.formatDescription;

		internal AcmFormat(AcmFormatDetails formatDetails)
		{
			this.formatDetails = formatDetails;
			WaveFormat = WaveFormat.MarshalFromPtr(formatDetails.waveFormatPointer);
		}
	}
	[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto, Pack = 4)]
	internal struct AcmFormatChoose
	{
		public int structureSize;

		public AcmFormatChooseStyleFlags styleFlags;

		public IntPtr ownerWindowHandle;

		public IntPtr selectedWaveFormatPointer;

		public int selectedWaveFormatByteSize;

		[MarshalAs(UnmanagedType.LPTStr)]
		public string title;

		[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 48)]
		public string formatTagDescription;

		[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 128)]
		public string formatDescription;

		[MarshalAs(UnmanagedType.LPTStr)]
		public string name;

		public int nameByteSize;

		public AcmFormatEnumFlags formatEnumFlags;

		public IntPtr waveFormatEnumPointer;

		public IntPtr instanceHandle;

		[MarshalAs(UnmanagedType.LPTStr)]
		public string templateName;

		public IntPtr customData;

		public AcmInterop.AcmFormatChooseHookProc windowCallbackFunction;
	}
	[Flags]
	internal enum AcmFormatChooseStyleFlags
	{
		None = 0,
		ShowHelp = 4,
		EnableHook = 8,
		EnableTemplate = 0x10,
		EnableTemplateHandle = 0x20,
		InitToWfxStruct = 0x40,
		ContextHelp = 0x80
	}
	[StructLayout(LayoutKind.Sequential, Pack = 4)]
	internal struct AcmFormatDetails
	{
		public int structSize;

		public int formatIndex;

		public int formatTag;

		public AcmDriverDetailsSupportFlags supportFlags;

		public IntPtr waveFormatPointer;

		public int waveFormatByteSize;

		[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 128)]
		public string formatDescription;

		public const int FormatDescriptionChars = 128;
	}
	[Flags]
	public enum AcmFormatEnumFlags
	{
		None = 0,
		Convert = 0x100000,
		Hardware = 0x400000,
		Input = 0x800000,
		Channels = 0x20000,
		SamplesPerSecond = 0x40000,
		Output = 0x1000000,
		Suggest = 0x200000,
		BitsPerSample = 0x80000,
		FormatTag = 0x10000
	}
	[Flags]
	internal enum AcmFormatSuggestFlags
	{
		FormatTag = 0x10000,
		Channels = 0x20000,
		SamplesPerSecond = 0x40000,
		BitsPerSample = 0x80000,
		TypeMask = 0xFF0000
	}
	public class AcmFormatTag
	{
		private AcmFormatTagDetails formatTagDetails;

		public int FormatTagIndex => formatTagDetails.formatTagIndex;

		public WaveFormatEncoding FormatTag => (WaveFormatEncoding)(ushort)formatTagDetails.formatTag;

		public int FormatSize => formatTagDetails.formatSize;

		public AcmDriverDetailsSupportFlags SupportFlags => formatTagDetails.supportFlags;

		public int StandardFormatsCount => formatTagDetails.standardFormatsCount;

		public string FormatDescription => formatTagDetails.formatDescription;

		internal AcmFormatTag(AcmFormatTagDetails formatTagDetails)
		{
			this.formatTagDetails = formatTagDetails;
		}
	}
	internal struct AcmFormatTagDetails
	{
		public int structureSize;

		public int formatTagIndex;

		public int formatTag;

		public int formatSize;

		public AcmDriverDetailsSupportFlags supportFlags;

		public int standardFormatsCount;

		[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 48)]
		public string formatDescription;

		public const int FormatTagDescriptionChars = 48;
	}
	internal class AcmInterop
	{
		public delegate bool AcmDriverEnumCallback(IntPtr hAcmDriverId, IntPtr instance, AcmDriverDetailsSupportFlags flags);

		public delegate bool AcmFormatEnumCallback(IntPtr hAcmDriverId, ref AcmFormatDetails formatDetails, IntPtr dwInstance, AcmDriverDetailsSupportFlags flags);

		public delegate bool AcmFormatTagEnumCallback(IntPtr hAcmDriverId, ref AcmFormatTagDetails formatTagDetails, IntPtr dwInstance, AcmDriverDetailsSupportFlags flags);

		public delegate bool AcmFormatChooseHookProc(IntPtr windowHandle, int message, IntPtr wParam, IntPtr lParam);

		[DllImport("msacm32.dll")]
		public static extern MmResult acmDriverAdd(out IntPtr driverHandle, IntPtr driverModule, IntPtr driverFunctionAddress, int priority, AcmDriverAddFlags flags);

		[DllImport("msacm32.dll")]
		public static extern MmResult acmDriverRemove(IntPtr driverHandle, int removeFlags);

		[DllImport("Msacm32.dll")]
		public static extern MmResult acmDriverClose(IntPtr hAcmDriver, int closeFlags);

		[DllImport("Msacm32.dll")]
		public static extern MmResult acmDriverEnum(AcmDriverEnumCallback fnCallback, IntPtr dwInstance, AcmDriverEnumFlags flags);

		[DllImport("Msacm32.dll")]
		public static extern MmResult acmDriverDetails(IntPtr hAcmDriver, ref AcmDriverDetails driverDetails, int reserved);

		[DllImport("Msacm32.dll")]
		public static extern MmResult acmDriverOpen(out IntPtr pAcmDriver, IntPtr hAcmDriverId, int openFlags);

		[DllImport("Msacm32.dll", EntryPoint = "acmFormatChooseW")]
		public static extern MmResult acmFormatChoose(ref AcmFormatChoose formatChoose);

		[DllImport("Msacm32.dll")]
		public static extern MmResult acmFormatEnum(IntPtr hAcmDriver, ref AcmFormatDetails formatDetails, AcmFormatEnumCallback callback, IntPtr instance, AcmFormatEnumFlags flags);

		[DllImport("Msacm32.dll", EntryPoint = "acmFormatSuggest")]
		public static extern MmResult acmFormatSuggest2(IntPtr hAcmDriver, IntPtr sourceFormatPointer, IntPtr destFormatPointer, int sizeDestFormat, AcmFormatSuggestFlags suggestFlags);

		[DllImport("Msacm32.dll")]
		public static extern MmResult acmFormatTagEnum(IntPtr hAcmDriver, ref AcmFormatTagDetails formatTagDetails, AcmFormatTagEnumCallback callback, IntPtr instance, int reserved);

		[DllImport("Msacm32.dll")]
		public static extern MmResult acmMetrics(IntPtr hAcmObject, AcmMetrics metric, out int output);

		[DllImport("Msacm32.dll", EntryPoint = "acmStreamOpen")]
		public static extern MmResult acmStreamOpen2(out IntPtr hAcmStream, IntPtr hAcmDriver, IntPtr sourceFormatPointer, IntPtr destFormatPointer, [In] WaveFilter waveFilter, IntPtr callback, IntPtr instance, AcmStreamOpenFlags openFlags);

		[DllImport("Msacm32.dll")]
		public static extern MmResult acmStreamClose(IntPtr hAcmStream, int closeFlags);

		[DllImport("Msacm32.dll")]
		public static extern MmResult acmStreamConvert(IntPtr hAcmStream, [In][Out] AcmStreamHeaderStruct streamHeader, AcmStreamConvertFlags streamConvertFlags);

		[DllImport("Msacm32.dll")]
		public static extern MmResult acmStreamPrepareHeader(IntPtr hAcmStream, [In][Out] AcmStreamHeaderStruct streamHeader, int prepareFlags);

		[DllImport("Msacm32.dll")]
		public static extern MmResult acmStreamReset(IntPtr hAcmStream, int resetFlags);

		[DllImport("Msacm32.dll")]
		public static extern MmResult acmStreamSize(IntPtr hAcmStream, int inputBufferSize, out int outputBufferSize, AcmStreamSizeFlags flags);

		[DllImport("Msacm32.dll")]
		public static extern MmResult acmStreamUnprepareHeader(IntPtr hAcmStream, [In][Out] AcmStreamHeaderStruct streamHeader, int flags);
	}
	public class AcmStream : IDisposable
	{
		private IntPtr streamHandle;

		private IntPtr driverHandle;

		private AcmStreamHeader streamHeader;

		private readonly WaveFormat sourceFormat;

		public byte[] SourceBuffer => streamHeader.SourceBuffer;

		public byte[] DestBuffer => streamHeader.DestBuffer;

		public AcmStream(WaveFormat sourceFormat, WaveFormat destFormat)
		{
			//IL_005b: Unknown result type (might be due to invalid IL or missing references)
			try
			{
				streamHandle = IntPtr.Zero;
				this.sourceFormat = sourceFormat;
				int num = Math.Max(65536, sourceFormat.AverageBytesPerSecond);
				num -= num % sourceFormat.BlockAlign;
				IntPtr intPtr = WaveFormat.MarshalToPtr(sourceFormat);
				IntPtr intPtr2 = WaveFormat.MarshalToPtr(destFormat);
				try
				{
					MmException.Try(AcmInterop.acmStreamOpen2(out streamHandle, IntPtr.Zero, intPtr, intPtr2, null, IntPtr.Zero, IntPtr.Zero, AcmStreamOpenFlags.NonRealTime), "acmStreamOpen");
				}
				finally
				{
					Marshal.FreeHGlobal(intPtr);
					Marshal.FreeHGlobal(intPtr2);
				}
				int destBufferLength = SourceToDest(num);
				streamHeader = new AcmStreamHeader(streamHandle, num, destBufferLength);
				driverHandle = IntPtr.Zero;
			}
			catch
			{
				Dispose();
				throw;
			}
		}

		public AcmStream(IntPtr driverId, WaveFormat sourceFormat, WaveFilter waveFilter)
		{
			//IL_0031: Unknown result type (might be due to invalid IL or missing references)
			//IL_0061: Unknown result type (might be due to invalid IL or missing references)
			int num = Math.Max(16384, sourceFormat.AverageBytesPerSecond);
			this.sourceFormat = sourceFormat;
			num -= num % sourceFormat.BlockAlign;
			MmException.Try(AcmInterop.acmDriverOpen(out driverHandle, driverId, 0), "acmDriverOpen");
			IntPtr intPtr = WaveFormat.MarshalToPtr(sourceFormat);
			try
			{
				MmException.Try(AcmInterop.acmStreamOpen2(out streamHandle, driverHandle, intPtr, intPtr, waveFilter, IntPtr.Zero, IntPtr.Zero, AcmStreamOpenFlags.NonRealTime), "acmStreamOpen");
			}
			finally
			{
				Marshal.FreeHGlobal(intPtr);
			}
			streamHeader = new AcmStreamHeader(streamHandle, num, SourceToDest(num));
		}

		public int SourceToDest(int source)
		{
			//IL_000f: Unknown result type (might be due to invalid IL or missing references)
			if (source == 0)
			{
				return 0;
			}
			MmException.Try(AcmInterop.acmStreamSize(streamHandle, source, out var outputBufferSize, AcmStreamSizeFlags.Source), "acmStreamSize");
			return outputBufferSize;
		}

		public int DestToSource(int dest)
		{
			//IL_000f: Unknown result type (might be due to invalid IL or missing references)
			if (dest == 0)
			{
				return 0;
			}
			MmException.Try(AcmInterop.acmStreamSize(streamHandle, dest, out var outputBufferSize, AcmStreamSizeFlags.Destination), "acmStreamSize");
			return outputBufferSize;
		}

		public static WaveFormat SuggestPcmFormat(WaveFormat compressedFormat)
		{
			//IL_000e: Unknown result type (might be due to invalid IL or missing references)
			//IL_0014: Expected O, but got Unknown
			//IL_0034: Unknown result type (might be due to invalid IL or missing references)
			WaveFormat val = new WaveFormat(compressedFormat.SampleRate, 16, compressedFormat.Channels);
			IntPtr intPtr = WaveFormat.MarshalToPtr(val);
			IntPtr intPtr2 = WaveFormat.MarshalToPtr(compressedFormat);
			try
			{
				MmResult val2 = AcmInterop.acmFormatSuggest2(IntPtr.Zero, intPtr2, intPtr, Marshal.SizeOf<WaveFormat>(val), AcmFormatSuggestFlags.FormatTag);
				val = WaveFormat.MarshalFromPtr(intPtr);
				MmException.Try(val2, "acmFormatSuggest");
				return val;
			}
			finally
			{
				Marshal.FreeHGlobal(intPtr);
				Marshal.FreeHGlobal(intPtr2);
			}
		}

		public void Reposition()
		{
			streamHeader.Reposition();
		}

		public int Convert(int bytesToConvert, out int sourceBytesConverted)
		{
			if (bytesToConvert % sourceFormat.BlockAlign != 0)
			{
				bytesToConvert -= bytesToConvert % sourceFormat.BlockAlign;
			}
			return streamHeader.Convert(bytesToConvert, out sourceBytesConverted);
		}

		[Obsolete("Call the version returning sourceBytesConverted instead")]
		public int Convert(int bytesToConvert)
		{
			//IL_0013: Unknown result type (might be due to invalid IL or missing references)
			int sourceBytesConverted;
			int result = Convert(bytesToConvert, out sourceBytesConverted);
			if (sourceBytesConverted != bytesToConvert)
			{
				throw new MmException((MmResult)8, "AcmStreamHeader.Convert didn't convert everything");
			}
			return result;
		}

		public void Dispose()
		{
			Dispose(disposing: true);
			GC.SuppressFinalize(this);
		}

		protected virtual void Dispose(bool disposing)
		{
			//IL_0036: Unknown result type (might be due to invalid IL or missing references)
			//IL_003b: Unknown result type (might be due to invalid IL or missing references)
			//IL_0047: Unknown result type (might be due to invalid IL or missing references)
			//IL_006f: Unknown result type (might be due to invalid IL or missing references)
			//IL_004a: Unknown result type (might be due to invalid IL or missing references)
			//IL_0050: Unknown result type (might be due to invalid IL or missing references)
			if (disposing && streamHeader != null)
			{
				streamHeader.Dispose();
				streamHeader = null;
			}
			if (streamHandle != IntPtr.Zero)
			{
				MmResult val = AcmInterop.acmStreamClose(streamHandle, 0);
				streamHandle = IntPtr.Zero;
				if ((int)val != 0)
				{
					throw new MmException(val, "acmStreamClose");
				}
			}
			if (driverHandle != IntPtr.Zero)
			{
				AcmInterop.acmDriverClose(driverHandle, 0);
				driverHandle = IntPtr.Zero;
			}
		}

		~AcmStream()
		{
			Dispose(disposing: false);
		}
	}
	internal class AcmStreamHeader : IDisposable
	{
		private AcmStreamHeaderStruct streamHeader;

		private GCHandle hSourceBuffer;

		private GCHandle hDestBuffer;

		private IntPtr streamHandle;

		private bool firstTime;

		private bool disposed;

		public byte[] SourceBuffer { get; private set; }

		public byte[] DestBuffer { get; private set; }

		public AcmStreamHeader(IntPtr streamHandle, int sourceBufferLength, int destBufferLength)
		{
			streamHeader = new AcmStreamHeaderStruct();
			SourceBuffer = new byte[sourceBufferLength];
			hSourceBuffer = GCHandle.Alloc(SourceBuffer, GCHandleType.Pinned);
			DestBuffer = new byte[destBufferLength];
			hDestBuffer = GCHandle.Alloc(DestBuffer, GCHandleType.Pinned);
			this.streamHandle = streamHandle;
			firstTime = true;
		}

		private void Prepare()
		{
			//IL_0075: Unknown result type (might be due to invalid IL or missing references)
			streamHeader.cbStruct = Marshal.SizeOf(streamHeader);
			streamHeader.sourceBufferLength = SourceBuffer.Length;
			streamHeader.sourceBufferPointer = hSourceBuffer.AddrOfPinnedObject();
			streamHeader.destBufferLength = DestBuffer.Length;
			streamHeader.destBufferPointer = hDestBuffer.AddrOfPinnedObject();
			MmException.Try(AcmInterop.acmStreamPrepareHeader(streamHandle, streamHeader, 0), "acmStreamPrepareHeader");
		}

		private void Unprepare()
		{
			//IL_005f: Unknown result type (might be due to invalid IL or missing references)
			//IL_0064: Unknown result type (might be due to invalid IL or missing references)
			//IL_0065: Unknown result type (might be due to invalid IL or missing references)
			//IL_0068: Unknown result type (might be due to invalid IL or missing references)
			//IL_006e: Unknown result type (might be due to invalid IL or missing references)
			streamHeader.sourceBufferLength = SourceBuffer.Length;
			streamHeader.sourceBufferPointer = hSourceBuffer.AddrOfPinnedObject();
			streamHeader.destBufferLength = DestBuffer.Length;
			streamHeader.destBufferPointer = hDestBuffer.AddrOfPinnedObject();
			MmResult val = AcmInterop.acmStreamUnprepareHeader(streamHandle, streamHeader, 0);
			if ((int)val != 0)
			{
				throw new MmException(val, "acmStreamUnprepareHeader");
			}
		}

		public void Reposition()
		{
			firstTime = true;
		}

		public int Convert(int bytesToConvert, out int sourceBytesConverted)
		{
			//IL_0039: Unknown result type (might be due to invalid IL or missing references)
			Prepare();
			try
			{
				streamHeader.sourceBufferLength = bytesToConvert;
				streamHeader.sourceBufferLengthUsed = bytesToConvert;
				AcmStreamConvertFlags streamConvertFlags = (firstTime ? (AcmStreamConvertFlags.BlockAlign | AcmStreamConvertFlags.Start) : AcmStreamConvertFlags.BlockAlign);
				MmException.Try(AcmInterop.acmStreamConvert(streamHandle, streamHeader, streamConvertFlags), "acmStreamConvert");
				firstTime = false;
				sourceBytesConverted = streamHeader.sourceBufferLengthUsed;
			}
			finally
			{
				Unprepare();
			}
			return streamHeader.destBufferLengthUsed;
		}

		public void Dispose()
		{
			GC.SuppressFinalize(this);
			Dispose(disposing: true);
		}

		protected virtual void Dispose(bool disposing)
		{
			if (!disposed)
			{
				SourceBuffer = null;
				DestBuffer = null;
				hSourceBuffer.Free();
				hDestBuffer.Free();
			}
			disposed = true;
		}

		~AcmStreamHeader()
		{
			Dispose(disposing: false);
		}
	}
	[Flags]
	internal enum AcmStreamHeaderStatusFlags
	{
		Done = 0x10000,
		Prepared = 0x20000,
		InQueue = 0x100000
	}
	[StructLayout(LayoutKind.Sequential, Size = 128)]
	internal class AcmStreamHeaderStruct
	{
		public int cbStruct;

		public AcmStreamHeaderStatusFlags fdwStatus;

		public IntPtr userData;

		public IntPtr sourceBufferPointer;

		public int sourceBufferLength;

		public int sourceBufferLengthUsed;

		public IntPtr sourceUserData;

		public IntPtr destBufferPointer;

		public int destBufferLength;

		public int destBufferLengthUsed;

		public IntPtr destUserData;
	}
	[Flags]
	internal enum AcmStreamOpenFlags
	{
		Query = 1,
		Async = 2,
		NonRealTime = 4,
		CallbackTypeMask = 0x70000,
		CallbackNull = 0,
		CallbackWindow = 0x10000,
		CallbackTask = 0x20000,
		CallbackFunction = 0x30000,
		CallbackThread = 0x20000,
		CallbackEvent = 0x50000
	}
	internal enum AcmStreamSizeFlags
	{
		Source,
		Destination
	}
	[StructLayout(LayoutKind.Sequential)]
	public class WaveFilter
	{
		public int StructureSize = Marshal.SizeOf(typeof(WaveFilter));

		public int FilterTag;

		public int Filter;

		[MarshalAs(UnmanagedType.ByValArray, SizeConst = 5)]
		public int[] Reserved;
	}
}