mirror of
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154 lines
6.6 KiB
C#
154 lines
6.6 KiB
C#
#nullable disable
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#pragma warning disable CS1591
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using System;
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using System.Globalization;
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using System.IO;
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using System.Net.Http;
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using System.Threading;
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using System.Threading.Tasks;
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using MediaBrowser.Common.Configuration;
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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.Model.Dto;
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using MediaBrowser.Model.IO;
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using MediaBrowser.Model.LiveTv;
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using MediaBrowser.Model.MediaInfo;
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using Microsoft.Extensions.Logging;
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namespace Emby.Server.Implementations.LiveTv.TunerHosts
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{
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public class SharedHttpStream : LiveStream, IDirectStreamProvider
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{
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private readonly IHttpClientFactory _httpClientFactory;
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private readonly IServerApplicationHost _appHost;
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public SharedHttpStream(
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MediaSourceInfo mediaSource,
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TunerHostInfo tunerHostInfo,
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string originalStreamId,
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IFileSystem fileSystem,
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IHttpClientFactory httpClientFactory,
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ILogger logger,
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IConfigurationManager configurationManager,
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IServerApplicationHost appHost,
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IStreamHelper streamHelper)
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: base(mediaSource, tunerHostInfo, fileSystem, logger, configurationManager, streamHelper)
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{
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_httpClientFactory = httpClientFactory;
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_appHost = appHost;
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OriginalStreamId = originalStreamId;
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EnableStreamSharing = true;
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}
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public override async Task Open(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 url = mediaSource.Path;
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Directory.CreateDirectory(Path.GetDirectoryName(TempFilePath));
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var typeName = GetType().Name;
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Logger.LogInformation("Opening {StreamType} Live stream from {Url}", typeName, url);
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// Response stream is disposed manually.
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var response = await _httpClientFactory.CreateClient(NamedClient.Default)
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.GetAsync(url, HttpCompletionOption.ResponseHeadersRead, CancellationToken.None)
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.ConfigureAwait(false);
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var contentType = response.Content.Headers.ContentType?.ToString() ?? string.Empty;
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if (contentType.Contains("matroska", StringComparison.OrdinalIgnoreCase)
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|| contentType.Contains("mp4", StringComparison.OrdinalIgnoreCase)
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|| contentType.Contains("dash", StringComparison.OrdinalIgnoreCase)
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|| contentType.Contains("mpegURL", StringComparison.OrdinalIgnoreCase)
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|| contentType.Contains("text/", StringComparison.OrdinalIgnoreCase))
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{
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// Close the stream without any sharing features
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response.Dispose();
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return;
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}
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SetTempFilePath("ts");
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var taskCompletionSource = new TaskCompletionSource<bool>();
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_ = StartStreaming(response, 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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MediaSource.Path = _appHost.GetLoopbackHttpApiUrl() + "/LiveTv/LiveStreamFiles/" + UniqueId + "/stream.ts";
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MediaSource.Protocol = MediaProtocol.Http;
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// OpenedMediaSource.Path = TempFilePath;
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// OpenedMediaSource.Protocol = MediaProtocol.File;
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// OpenedMediaSource.Path = _tempFilePath;
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// OpenedMediaSource.Protocol = MediaProtocol.File;
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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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if (taskCompletionSource.Task.Exception != null)
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{
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// Error happened while opening the stream so raise the exception again to inform the caller
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throw taskCompletionSource.Task.Exception;
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}
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if (!taskCompletionSource.Task.Result)
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{
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Logger.LogWarning("Zero bytes copied from stream {StreamType} to {FilePath} but no exception raised", GetType().Name, TempFilePath);
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throw new EndOfStreamException(string.Format(CultureInfo.InvariantCulture, "Zero bytes copied from stream {0}", GetType().Name));
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}
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}
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private Task StartStreaming(HttpResponseMessage response, TaskCompletionSource<bool> openTaskCompletionSource, CancellationToken cancellationToken)
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{
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return Task.Run(
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async () =>
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{
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try
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{
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Logger.LogInformation("Beginning {StreamType} stream to {FilePath}", GetType().Name, TempFilePath);
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using var message = response;
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await using var stream = await response.Content.ReadAsStreamAsync(cancellationToken).ConfigureAwait(false);
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await using var fileStream = new FileStream(TempFilePath, FileMode.Create, FileAccess.Write, FileShare.Read, IODefaults.FileStreamBufferSize, FileOptions.Asynchronous);
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await StreamHelper.CopyToAsync(
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stream,
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fileStream,
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IODefaults.CopyToBufferSize,
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() => Resolve(openTaskCompletionSource),
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cancellationToken).ConfigureAwait(false);
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}
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catch (OperationCanceledException ex)
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{
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Logger.LogInformation("Copying of {StreamType} to {FilePath} was canceled", GetType().Name, TempFilePath);
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openTaskCompletionSource.TrySetException(ex);
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}
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catch (Exception ex)
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{
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Logger.LogError(ex, "Error copying live stream {StreamType} to {FilePath}", GetType().Name, TempFilePath);
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openTaskCompletionSource.TrySetException(ex);
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}
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openTaskCompletionSource.TrySetResult(false);
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EnableStreamSharing = false;
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await DeleteTempFiles(TempFilePath).ConfigureAwait(false);
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},
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CancellationToken.None);
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}
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private void Resolve(TaskCompletionSource<bool> openTaskCompletionSource)
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{
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DateOpened = DateTime.UtcNow;
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openTaskCompletionSource.TrySetResult(true);
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}
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}
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}
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