mirror of
https://github.com/jellyfin/jellyfin.git
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194 lines
No EOL
8.7 KiB
C#
194 lines
No EOL
8.7 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Text;
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using System.Threading;
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using System.Threading.Tasks;
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using Emby.Server.Implementations.IO;
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using MediaBrowser.Common.Net;
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using MediaBrowser.Controller;
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using MediaBrowser.Controller.Library;
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using MediaBrowser.Controller.LiveTv;
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using MediaBrowser.Model.Dto;
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using MediaBrowser.Model.IO;
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using MediaBrowser.Model.Logging;
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using MediaBrowser.Model.MediaInfo;
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using MediaBrowser.Model.Net;
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using MediaBrowser.Model.System;
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namespace Emby.Server.Implementations.LiveTv.TunerHosts.HdHomerun
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{
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public class HdHomerunUdpStream : LiveStream, IDirectStreamProvider
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{
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private readonly ILogger _logger;
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private readonly IServerApplicationHost _appHost;
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private readonly ISocketFactory _socketFactory;
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private readonly CancellationTokenSource _liveStreamCancellationTokenSource = new CancellationTokenSource();
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private readonly TaskCompletionSource<bool> _liveStreamTaskCompletionSource = new TaskCompletionSource<bool>();
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private readonly IHdHomerunChannelCommands _channelCommands;
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private readonly int _numTuners;
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private readonly INetworkManager _networkManager;
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private readonly string _tempFilePath;
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public HdHomerunUdpStream(MediaSourceInfo mediaSource, string originalStreamId, IHdHomerunChannelCommands channelCommands, int numTuners, IFileSystem fileSystem, IHttpClient httpClient, ILogger logger, IServerApplicationPaths appPaths, IServerApplicationHost appHost, ISocketFactory socketFactory, INetworkManager networkManager, IEnvironmentInfo environment)
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: base(mediaSource, environment, fileSystem)
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{
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_logger = logger;
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_appHost = appHost;
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_socketFactory = socketFactory;
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_networkManager = networkManager;
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OriginalStreamId = originalStreamId;
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_channelCommands = channelCommands;
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_numTuners = numTuners;
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_tempFilePath = Path.Combine(appPaths.TranscodingTempPath, UniqueId + ".ts");
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}
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protected override async Task OpenInternal(CancellationToken openCancellationToken)
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{
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_liveStreamCancellationTokenSource.Token.ThrowIfCancellationRequested();
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var mediaSource = OriginalMediaSource;
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var uri = new Uri(mediaSource.Path);
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var localPort = _networkManager.GetRandomUnusedUdpPort();
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_logger.Info("Opening HDHR UDP Live stream from {0}", uri.Host);
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var taskCompletionSource = new TaskCompletionSource<bool>();
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StartStreaming(uri.Host, localPort, taskCompletionSource, _liveStreamCancellationTokenSource.Token);
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//OpenedMediaSource.Protocol = MediaProtocol.File;
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//OpenedMediaSource.Path = tempFile;
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//OpenedMediaSource.ReadAtNativeFramerate = true;
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OpenedMediaSource.Path = _appHost.GetLocalApiUrl("127.0.0.1") + "/LiveTv/LiveStreamFiles/" + UniqueId + "/stream.ts";
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OpenedMediaSource.Protocol = MediaProtocol.Http;
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//OpenedMediaSource.SupportsDirectPlay = false;
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//OpenedMediaSource.SupportsDirectStream = true;
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//OpenedMediaSource.SupportsTranscoding = true;
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await taskCompletionSource.Task.ConfigureAwait(false);
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//await Task.Delay(5000).ConfigureAwait(false);
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}
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public override Task Close()
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{
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_logger.Info("Closing HDHR UDP live stream");
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_liveStreamCancellationTokenSource.Cancel();
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return _liveStreamTaskCompletionSource.Task;
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}
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private Task StartStreaming(string remoteIp, int localPort, TaskCompletionSource<bool> openTaskCompletionSource, CancellationToken cancellationToken)
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{
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return Task.Run(async () =>
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{
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var isFirstAttempt = true;
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using (var udpClient = _socketFactory.CreateUdpSocket(localPort))
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{
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using (var hdHomerunManager = new HdHomerunManager(_socketFactory))
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{
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var remoteAddress = _networkManager.ParseIpAddress(remoteIp);
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IpAddressInfo localAddress = null;
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using (var tcpSocket = _socketFactory.CreateSocket(remoteAddress.AddressFamily, SocketType.Stream, ProtocolType.Tcp, false))
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{
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try
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{
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tcpSocket.Connect(new IpEndPointInfo(remoteAddress, HdHomerunManager.HdHomeRunPort));
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localAddress = tcpSocket.LocalEndPoint.IpAddress;
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tcpSocket.Close();
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}
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catch (Exception)
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{
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_logger.Error("Unable to determine local ip address for Legacy HDHomerun stream.");
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return;
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}
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}
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while (!cancellationToken.IsCancellationRequested)
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{
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try
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{
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// send url to start streaming
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await hdHomerunManager.StartStreaming(remoteAddress, localAddress, localPort, _channelCommands, _numTuners, cancellationToken).ConfigureAwait(false);
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_logger.Info("Opened HDHR UDP stream from {0}", remoteAddress);
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if (!cancellationToken.IsCancellationRequested)
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{
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FileSystem.CreateDirectory(FileSystem.GetDirectoryName(_tempFilePath));
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using (var fileStream = FileSystem.GetFileStream(_tempFilePath, FileOpenMode.Create, FileAccessMode.Write, FileShareMode.Read, FileOpenOptions.Asynchronous))
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{
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await CopyTo(udpClient, fileStream, openTaskCompletionSource, cancellationToken).ConfigureAwait(false);
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}
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}
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}
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catch (OperationCanceledException ex)
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{
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_logger.Info("HDHR UDP stream cancelled or timed out from {0}", remoteAddress);
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openTaskCompletionSource.TrySetException(ex);
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break;
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}
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catch (Exception ex)
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{
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if (isFirstAttempt)
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{
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_logger.ErrorException("Error opening live stream:", ex);
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openTaskCompletionSource.TrySetException(ex);
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break;
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}
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_logger.ErrorException("Error copying live stream, will reopen", ex);
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}
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isFirstAttempt = false;
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}
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await hdHomerunManager.StopStreaming().ConfigureAwait(false);
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_liveStreamTaskCompletionSource.TrySetResult(true);
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}
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}
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await DeleteTempFile(_tempFilePath).ConfigureAwait(false);
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});
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}
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private void Resolve(TaskCompletionSource<bool> openTaskCompletionSource)
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{
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Task.Run(() =>
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{
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openTaskCompletionSource.TrySetResult(true);
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});
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}
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public Task CopyToAsync(Stream stream, CancellationToken cancellationToken)
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{
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return CopyFileTo(_tempFilePath, false, stream, cancellationToken);
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}
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private static int RtpHeaderBytes = 12;
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private async Task CopyTo(ISocket udpClient, Stream outputStream, TaskCompletionSource<bool> openTaskCompletionSource, CancellationToken cancellationToken)
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{
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var receiveBuffer = new byte[8192];
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while (true)
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{
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var data = await udpClient.ReceiveAsync(receiveBuffer, 0, receiveBuffer.Length, cancellationToken).ConfigureAwait(false);
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var bytesRead = data.ReceivedBytes - RtpHeaderBytes;
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await outputStream.WriteAsync(data.Buffer, RtpHeaderBytes, bytesRead, cancellationToken).ConfigureAwait(false);
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if (openTaskCompletionSource != null)
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{
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Resolve(openTaskCompletionSource);
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openTaskCompletionSource = null;
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}
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}
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}
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}
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} |