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stub out legacy live stream

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pull/1154/head
Luke Pulverenti 8 years ago
parent 8be997b8ad
commit 0a64609fb8
2 changed files with 290 additions and 0 deletions
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Emby.Server.Implementations/Emby.Server.Implementations.csproj
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@ -173,6 +173,7 @@
<Compile Include="LiveTv\TunerHosts\HdHomerun\HdHomerunDiscovery.cs" />
<Compile Include="LiveTv\TunerHosts\HdHomerun\HdHomerunHost.cs" />
<Compile Include="LiveTv\TunerHosts\HdHomerun\HdHomerunLiveStream.cs" />
<Compile Include="LiveTv\TunerHosts\HdHomerun\LegacyHdHomerunLiveStream.cs" />
<Compile Include="LiveTv\TunerHosts\M3uParser.cs" />
<Compile Include="LiveTv\TunerHosts\M3UTunerHost.cs" />
<Compile Include="LiveTv\TunerHosts\MulticastStream.cs" />

289
Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/LegacyHdHomerunLiveStream.cs
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@ -0,0 +1,289 @@
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using MediaBrowser.Common.Net;
using MediaBrowser.Controller;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.LiveTv;
using MediaBrowser.Model.Dto;
using MediaBrowser.Model.IO;
using MediaBrowser.Model.Logging;
using MediaBrowser.Model.MediaInfo;
using MediaBrowser.Model.Net;
namespace Emby.Server.Implementations.LiveTv.TunerHosts.HdHomerun
{
public class LegacyHdHomerunLiveStream : LiveStream, IDirectStreamProvider
{
private readonly ILogger _logger;
private readonly IHttpClient _httpClient;
private readonly IFileSystem _fileSystem;
private readonly IServerApplicationPaths _appPaths;
private readonly IServerApplicationHost _appHost;
private readonly ISocketFactory _socketFactory;
private readonly CancellationTokenSource _liveStreamCancellationTokenSource = new CancellationTokenSource();
private readonly TaskCompletionSource<bool> _liveStreamTaskCompletionSource = new TaskCompletionSource<bool>();
private readonly MulticastStream _multicastStream;
private readonly string _channelUrl;
private readonly int _numTuners;
public LegacyHdHomerunLiveStream(MediaSourceInfo mediaSource, string originalStreamId, string channelUrl, int numTuners, IFileSystem fileSystem, IHttpClient httpClient, ILogger logger, IServerApplicationPaths appPaths, IServerApplicationHost appHost, ISocketFactory socketFactory)
: base(mediaSource)
{
_fileSystem = fileSystem;
_httpClient = httpClient;
_logger = logger;
_appPaths = appPaths;
_appHost = appHost;
_socketFactory = socketFactory;
OriginalStreamId = originalStreamId;
_multicastStream = new MulticastStream(_logger);
_channelUrl = channelUrl;
_numTuners = numTuners;
}
protected override async Task OpenInternal(CancellationToken openCancellationToken)
{
_liveStreamCancellationTokenSource.Token.ThrowIfCancellationRequested();
var mediaSource = OriginalMediaSource;
var splitString = mediaSource.Path.Split('_');
var remoteIp = splitString[0];
var localPort = Convert.ToInt32(splitString[1]);
_logger.Info("Opening Legacy HDHR Live stream from {0}", remoteIp);
var taskCompletionSource = new TaskCompletionSource<bool>();
StartStreaming(remoteIp, localPort, taskCompletionSource, _liveStreamCancellationTokenSource.Token);
//OpenedMediaSource.Protocol = MediaProtocol.File;
//OpenedMediaSource.Path = tempFile;
//OpenedMediaSource.ReadAtNativeFramerate = true;
OpenedMediaSource.Path = _appHost.GetLocalApiUrl("127.0.0.1") + "/LiveTv/LiveStreamFiles/" + UniqueId + "/stream.ts";
OpenedMediaSource.Protocol = MediaProtocol.Http;
OpenedMediaSource.SupportsDirectPlay = false;
OpenedMediaSource.SupportsDirectStream = true;
OpenedMediaSource.SupportsTranscoding = true;
await taskCompletionSource.Task.ConfigureAwait(false);
//await Task.Delay(5000).ConfigureAwait(false);
}
public override Task Close()
{
_logger.Info("Closing Legacy HDHR live stream");
_liveStreamCancellationTokenSource.Cancel();
return _liveStreamTaskCompletionSource.Task;
}
private async Task StartStreaming(string remoteIp, int localPort, TaskCompletionSource<bool> openTaskCompletionSource, CancellationToken cancellationToken)
{
//await Task.Run(async () =>
//{
// var isFirstAttempt = true;
// var udpClient = _socketFactory.CreateUdpSocket(localPort);
// using (var legCommand = new HdHomerunManager(_socketFactory))
// {
// var remoteAddress = new IpAddressInfo(remoteIp, IpAddressFamily.InterNetwork);
// IpAddressInfo localAddress = null;
// var tcpSocket = _socketFactory.CreateSocket(IpAddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp, false);
// try
// {
// tcpSocket.Connect(new IpEndPointInfo(remoteAddress, LegacyHdHomerunCommand.HdHomeRunPort));
// localAddress = tcpSocket.LocalEndPoint.IpAddress;
// tcpSocket.Close();
// }
// catch (Exception)
// {
// _logger.Error("Unable to determine local ip address for Legacy HDHomerun stream.");
// return;
// }
// while (!cancellationToken.IsCancellationRequested)
// {
// try
// {
// // send url to start streaming
// await legCommand.StartStreaming(remoteAddress, localAddress, localPort, _channelUrl, _numTuners, cancellationToken).ConfigureAwait(false);
// var response = await udpClient.ReceiveAsync(cancellationToken).ConfigureAwait(false);
// _logger.Info("Opened Legacy HDHR stream from {0}", _channelUrl);
// if (!cancellationToken.IsCancellationRequested)
// {
// Action onStarted = null;
// if (isFirstAttempt)
// {
// onStarted = () => openTaskCompletionSource.TrySetResult(true);
// }
// var stream = new UdpClientStream(udpClient);
// await _multicastStream.CopyUntilCancelled(stream, onStarted, cancellationToken).ConfigureAwait(false);
// }
// }
// catch (OperationCanceledException)
// {
// break;
// }
// catch (Exception ex)
// {
// if (isFirstAttempt)
// {
// _logger.ErrorException("Error opening live stream:", ex);
// openTaskCompletionSource.TrySetException(ex);
// break;
// }
// _logger.ErrorException("Error copying live stream, will reopen", ex);
// }
// isFirstAttempt = false;
// }
// await legCommand.StopStreaming().ConfigureAwait(false);
// udpClient.Dispose();
// _liveStreamTaskCompletionSource.TrySetResult(true);
// }
//}).ConfigureAwait(false);
}
public Task CopyToAsync(Stream stream, CancellationToken cancellationToken)
{
return _multicastStream.CopyToAsync(stream);
}
}
// This handles the ReadAsync function only of a Stream object
// This is used to wrap a UDP socket into a stream for MulticastStream which only uses ReadAsync
public class UdpClientStream : Stream
{
private static int RtpHeaderBytes = 12;
private static int PacketSize = 1316;
private readonly ISocket _udpClient;
bool disposed;
public UdpClientStream(ISocket udpClient) : base()
{
_udpClient = udpClient;
}
public override async Task<int> ReadAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)
{
if (buffer == null)
throw new ArgumentNullException("buffer");
if (offset + count < 0)
throw new ArgumentOutOfRangeException("offset + count must not be negative", "offset+count");
if (offset + count > buffer.Length)
throw new ArgumentException("offset + count must not be greater than the length of buffer", "offset+count");
if (disposed)
throw new ObjectDisposedException(typeof(UdpClientStream).ToString());
// This will always receive a 1328 packet size (PacketSize + RtpHeaderSize)
// The RTP header will be stripped so see how many reads we need to make to fill the buffer.
int numReads = count / PacketSize;
int totalBytesRead = 0;
for (int i = 0; i < numReads; ++i)
{
var data = await _udpClient.ReceiveAsync(cancellationToken).ConfigureAwait(false);
var bytesRead = data.ReceivedBytes - RtpHeaderBytes;
// remove rtp header
Buffer.BlockCopy(data.Buffer, RtpHeaderBytes, buffer, offset, bytesRead);
offset += bytesRead;
totalBytesRead += bytesRead;
}
return totalBytesRead;
}
protected override void Dispose(bool disposing)
{
disposed = true;
}
public override bool CanRead
{
get
{
throw new NotImplementedException();
}
}
public override bool CanSeek
{
get
{
throw new NotImplementedException();
}
}
public override bool CanWrite
{
get
{
throw new NotImplementedException();
}
}
public override long Length
{
get
{
throw new NotImplementedException();
}
}
public override long Position
{
get
{
throw new NotImplementedException();
}
set
{
throw new NotImplementedException();
}
}
public override void Flush()
{
throw new NotImplementedException();
}
public override int Read(byte[] buffer, int offset, int count)
{
throw new NotImplementedException();
}
public override long Seek(long offset, SeekOrigin origin)
{
throw new NotImplementedException();
}
public override void SetLength(long value)
{
throw new NotImplementedException();
}
public override void Write(byte[] buffer, int offset, int count)
{
throw new NotImplementedException();
}
}
}
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