Kill ProgressiveFileCopier and seek to end for ongoing livetv

Emby.Server.Implementations/Library/ExclusiveLiveStream.cs

@@ -4,6 +4,7 @@
 
 using System;
 using System.Globalization;
+using System.IO;
 using System.Threading;
 using System.Threading.Tasks;
 using MediaBrowser.Controller.Library;
@@ -41,6 +42,11 @@ namespace Emby.Server.Implementations.Library
             return _closeFn();
         }
 
+        public Stream GetStream(bool seekNearEnd)
+        {
+            throw new NotSupportedException();
+        }
+
         public Task Open(CancellationToken openCancellationToken)
         {
             return Task.CompletedTask;

Emby.Server.Implementations/Library/MediaSourceManager.cs

@@ -602,7 +602,7 @@ namespace Emby.Server.Implementations.Library
 
         public async Task<MediaSourceInfo> GetLiveStreamMediaInfo(string id, CancellationToken cancellationToken)
         {
-            var liveStreamInfo = await GetLiveStreamInfo(id, cancellationToken).ConfigureAwait(false);
+            var liveStreamInfo = GetLiveStreamInfo(id);
 
             var mediaSource = liveStreamInfo.MediaSource;
 
@@ -771,18 +771,18 @@ namespace Emby.Server.Implementations.Library
             mediaSource.InferTotalBitrate(true);
         }
 
-        public async Task<Tuple<MediaSourceInfo, IDirectStreamProvider>> GetLiveStreamWithDirectStreamProvider(string id, CancellationToken cancellationToken)
+        public Task<Tuple<MediaSourceInfo, IDirectStreamProvider>> GetLiveStreamWithDirectStreamProvider(string id, CancellationToken cancellationToken)
         {
             if (string.IsNullOrEmpty(id))
             {
                 throw new ArgumentNullException(nameof(id));
             }
 
-            var info = await GetLiveStreamInfo(id, cancellationToken).ConfigureAwait(false);
-            return new Tuple<MediaSourceInfo, IDirectStreamProvider>(info.MediaSource, info as IDirectStreamProvider);
+            var info = GetLiveStreamInfo(id);
+            return Task.FromResult(new Tuple<MediaSourceInfo, IDirectStreamProvider>(info.MediaSource, info as IDirectStreamProvider));
         }
 
-        private Task<ILiveStream> GetLiveStreamInfo(string id, CancellationToken cancellationToken)
+        public ILiveStream GetLiveStreamInfo(string id)
         {
             if (string.IsNullOrEmpty(id))
             {
@@ -791,12 +791,10 @@ namespace Emby.Server.Implementations.Library
 
             if (_openStreams.TryGetValue(id, out ILiveStream info))
             {
-                return Task.FromResult(info);
-            }
-            else
-            {
-                return Task.FromException<ILiveStream>(new ResourceNotFoundException());
+                return info;
             }
+
+            throw new ResourceNotFoundException();
         }
 
         public async Task<MediaSourceInfo> GetLiveStream(string id, CancellationToken cancellationToken)

Emby.Server.Implementations/LiveTv/EmbyTV/DirectRecorder.cs

@@ -5,6 +5,7 @@ using System.IO;
 using System.Net.Http;
 using System.Threading;
 using System.Threading.Tasks;
+using Jellyfin.Api.Helpers;
 using MediaBrowser.Common.Net;
 using MediaBrowser.Controller.Library;
 using MediaBrowser.Model.Dto;
@@ -50,16 +51,23 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
             {
                 onStarted();
 
-                _logger.LogInformation("Copying recording stream to file {0}", targetFile);
+                _logger.LogInformation("Copying recording to file {FilePath}", targetFile);
 
                 // The media source is infinite so we need to handle stopping ourselves
                 using var durationToken = new CancellationTokenSource(duration);
                 using var cancellationTokenSource = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken, durationToken.Token);
-
-                await directStreamProvider.CopyToAsync(output, cancellationTokenSource.Token).ConfigureAwait(false);
+                var linkedCancellationToken = cancellationTokenSource.Token;
+
+                await using var fileStream = new ProgressiveFileStream(directStreamProvider.GetStream(), null, null);
+                await _streamHelper.CopyToAsync(
+                    fileStream,
+                    output,
+                    IODefaults.CopyToBufferSize,
+                    1000,
+                    linkedCancellationToken).ConfigureAwait(false);
             }
 
-            _logger.LogInformation("Recording completed to file {0}", targetFile);
+            _logger.LogInformation("Recording completed: {FilePath}", targetFile);
         }
 
         private async Task RecordFromMediaSource(MediaSourceInfo mediaSource, string targetFile, TimeSpan duration, Action onStarted, CancellationToken cancellationToken)

Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunUdpStream.cs

@@ -156,11 +156,6 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts.HdHomerun
             await taskCompletionSource.Task.ConfigureAwait(false);
         }
 
-        public string GetFilePath()
-        {
-            return TempFilePath;
-        }
-
         private async Task StartStreaming(UdpClient udpClient, HdHomerunManager hdHomerunManager, IPAddress remoteAddress, TaskCompletionSource<bool> openTaskCompletionSource, CancellationToken cancellationToken)
         {
             using (udpClient)
@@ -184,7 +179,7 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts.HdHomerun
                 EnableStreamSharing = false;
             }
 
-            await DeleteTempFiles(new List<string> { TempFilePath }).ConfigureAwait(false);
+            await DeleteTempFiles(TempFilePath).ConfigureAwait(false);
         }
 
         private async Task CopyTo(UdpClient udpClient, string file, TaskCompletionSource<bool> openTaskCompletionSource, CancellationToken cancellationToken)

Emby.Server.Implementations/LiveTv/TunerHosts/LiveStream.cs

@@ -3,10 +3,8 @@
 #pragma warning disable CS1591
 
 using System;
-using System.Collections.Generic;
 using System.Globalization;
 using System.IO;
-using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
 using MediaBrowser.Common.Configuration;
@@ -97,6 +95,18 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts
             return Task.CompletedTask;
         }
 
+        public Stream GetStream(bool seekNearEnd = true)
+        {
+            var stream = GetInputStream(TempFilePath, AsyncFile.UseAsyncIO);
+            bool seekFile = (DateTime.UtcNow - DateOpened).TotalSeconds > 10;
+            if (seekFile)
+            {
+                TrySeek(stream, -20000);
+            }
+
+            return stream;
+        }
+
         protected FileStream GetInputStream(string path, bool allowAsyncFileRead)
             => new FileStream(
                 path,
@@ -106,112 +116,29 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts
                 IODefaults.FileStreamBufferSize,
                 allowAsyncFileRead ? FileOptions.SequentialScan | FileOptions.Asynchronous : FileOptions.SequentialScan);
 
-        public Task DeleteTempFiles()
-        {
-            return DeleteTempFiles(GetStreamFilePaths());
-        }
-
-        protected async Task DeleteTempFiles(IEnumerable<string> paths, int retryCount = 0)
+        protected async Task DeleteTempFiles(string path, int retryCount = 0)
         {
             if (retryCount == 0)
             {
-                Logger.LogInformation("Deleting temp files {0}", paths);
-            }
-
-            var failedFiles = new List<string>();
-
-            foreach (var path in paths)
-            {
-                if (!File.Exists(path))
-                {
-                    continue;
-                }
-
-                try
-                {
-                    FileSystem.DeleteFile(path);
-                }
-                catch (Exception ex)
-                {
-                    Logger.LogError(ex, "Error deleting file {path}", path);
-                    failedFiles.Add(path);
-                }
-            }
-
-            if (failedFiles.Count > 0 && retryCount <= 40)
-            {
-                await Task.Delay(500).ConfigureAwait(false);
-                await DeleteTempFiles(failedFiles, retryCount + 1).ConfigureAwait(false);
+                Logger.LogInformation("Deleting temp file {FilePath}", path);
             }
-        }
 
-        protected virtual List<string> GetStreamFilePaths()
-        {
-            return new List<string> { TempFilePath };
-        }
-
-        public async Task CopyToAsync(Stream stream, CancellationToken cancellationToken)
-        {
-            using var linkedCancellationTokenSource = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken, LiveStreamCancellationTokenSource.Token);
-            cancellationToken = linkedCancellationTokenSource.Token;
-
-            bool seekFile = (DateTime.UtcNow - DateOpened).TotalSeconds > 10;
-
-            var nextFileInfo = GetNextFile(null);
-            var nextFile = nextFileInfo.file;
-            var isLastFile = nextFileInfo.isLastFile;
-
-            var allowAsync = AsyncFile.UseAsyncIO;
-            while (!string.IsNullOrEmpty(nextFile))
-            {
-                var emptyReadLimit = isLastFile ? EmptyReadLimit : 1;
-
-                await CopyFile(nextFile, seekFile, emptyReadLimit, allowAsync, stream, cancellationToken).ConfigureAwait(false);
-
-                seekFile = false;
-                nextFileInfo = GetNextFile(nextFile);
-                nextFile = nextFileInfo.file;
-                isLastFile = nextFileInfo.isLastFile;
-            }
-
-            Logger.LogInformation("Live Stream ended.");
-        }
-
-        private (string file, bool isLastFile) GetNextFile(string currentFile)
-        {
-            var files = GetStreamFilePaths();
-
-            if (string.IsNullOrEmpty(currentFile))
+            try
             {
-                return (files[^1], true);
+                FileSystem.DeleteFile(path);
             }
-
-            var nextIndex = files.FindIndex(i => string.Equals(i, currentFile, StringComparison.OrdinalIgnoreCase)) + 1;
-
-            var isLastFile = nextIndex == files.Count - 1;
-
-            return (files.ElementAtOrDefault(nextIndex), isLastFile);
-        }
-
-        private async Task CopyFile(string path, bool seekFile, int emptyReadLimit, bool allowAsync, Stream stream, CancellationToken cancellationToken)
-        {
-            using (var inputStream = GetInputStream(path, allowAsync))
+            catch (Exception ex)
             {
-                if (seekFile)
+                Logger.LogError(ex, "Error deleting file {FilePath}", path);
+                if (retryCount <= 40)
                 {
-                    TrySeek(inputStream, -20000);
+                    await Task.Delay(500).ConfigureAwait(false);
+                    await DeleteTempFiles(path, retryCount + 1).ConfigureAwait(false);
                 }
-
-                await StreamHelper.CopyToAsync(
-                    inputStream,
-                    stream,
-                    IODefaults.CopyToBufferSize,
-                    emptyReadLimit,
-                    cancellationToken).ConfigureAwait(false);
             }
         }
 
-        private void TrySeek(FileStream stream, long offset)
+        private void TrySeek(Stream stream, long offset)
         {
             if (!stream.CanSeek)
             {

Emby.Server.Implementations/LiveTv/TunerHosts/SharedHttpStream.cs

@@ -3,7 +3,6 @@
 #pragma warning disable CS1591
 
 using System;
-using System.Collections.Generic;
 using System.Globalization;
 using System.IO;
 using System.Net.Http;
@@ -55,39 +54,26 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts
             Directory.CreateDirectory(Path.GetDirectoryName(TempFilePath));
 
             var typeName = GetType().Name;
-            Logger.LogInformation("Opening " + typeName + " Live stream from {0}", url);
+            Logger.LogInformation("Opening {StreamType} Live stream from {Url}", typeName, url);
 
             // Response stream is disposed manually.
             var response = await _httpClientFactory.CreateClient(NamedClient.Default)
                 .GetAsync(url, HttpCompletionOption.ResponseHeadersRead, CancellationToken.None)
                 .ConfigureAwait(false);
 
-            var extension = "ts";
-            var requiresRemux = false;
-
             var contentType = response.Content.Headers.ContentType?.ToString() ?? string.Empty;
-            if (contentType.IndexOf("matroska", StringComparison.OrdinalIgnoreCase) != -1)
-            {
-                requiresRemux = true;
-            }
-            else if (contentType.IndexOf("mp4", StringComparison.OrdinalIgnoreCase) != -1 ||
-               contentType.IndexOf("dash", StringComparison.OrdinalIgnoreCase) != -1 ||
-               contentType.IndexOf("mpegURL", StringComparison.OrdinalIgnoreCase) != -1 ||
-               contentType.IndexOf("text/", StringComparison.OrdinalIgnoreCase) != -1)
-            {
-                requiresRemux = true;
-            }
-
-            // Close the stream without any sharing features
-            if (requiresRemux)
+            if (contentType.Contains("matroska", StringComparison.OrdinalIgnoreCase)
+                || contentType.Contains("mp4", StringComparison.OrdinalIgnoreCase)
+                || contentType.Contains("dash", StringComparison.OrdinalIgnoreCase)
+                || contentType.Contains("mpegURL", StringComparison.OrdinalIgnoreCase)
+                || contentType.Contains("text/", StringComparison.OrdinalIgnoreCase))
             {
-                using (response)
-                {
-                    return;
-                }
+                // Close the stream without any sharing features
+                response.Dispose();
+                return;
             }
 
-            SetTempFilePath(extension);
+            SetTempFilePath("ts");
 
             var taskCompletionSource = new TaskCompletionSource<bool>();
 
@@ -117,16 +103,11 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts
 
             if (!taskCompletionSource.Task.Result)
             {
-                Logger.LogWarning("Zero bytes copied from stream {0} to {1} but no exception raised", GetType().Name, TempFilePath);
+                Logger.LogWarning("Zero bytes copied from stream {StreamType} to {FilePath} but no exception raised", GetType().Name, TempFilePath);
                 throw new EndOfStreamException(string.Format(CultureInfo.InvariantCulture, "Zero bytes copied from stream {0}", GetType().Name));
             }
         }
 
-        public string GetFilePath()
-        {
-            return TempFilePath;
-        }
-
         private Task StartStreaming(HttpResponseMessage response, TaskCompletionSource<bool> openTaskCompletionSource, CancellationToken cancellationToken)
         {
             return Task.Run(
@@ -134,7 +115,7 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts
                 {
                     try
                     {
-                        Logger.LogInformation("Beginning {0} stream to {1}", GetType().Name, TempFilePath);
+                        Logger.LogInformation("Beginning {StreamType} stream to {FilePath}", GetType().Name, TempFilePath);
                         using var message = response;
                         await using var stream = await response.Content.ReadAsStreamAsync(cancellationToken).ConfigureAwait(false);
                         await using var fileStream = new FileStream(TempFilePath, FileMode.Create, FileAccess.Write, FileShare.Read, IODefaults.FileStreamBufferSize, AsyncFile.UseAsyncIO);
@@ -147,19 +128,19 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts
                     }
                     catch (OperationCanceledException ex)
                     {
-                        Logger.LogInformation("Copying of {0} to {1} was canceled", GetType().Name, TempFilePath);
+                        Logger.LogInformation("Copying of {StreamType} to {FilePath} was canceled", GetType().Name, TempFilePath);
                         openTaskCompletionSource.TrySetException(ex);
                     }
                     catch (Exception ex)
                     {
-                        Logger.LogError(ex, "Error copying live stream {0} to {1}.", GetType().Name, TempFilePath);
+                        Logger.LogError(ex, "Error copying live stream {StreamType} to {FilePath}", GetType().Name, TempFilePath);
                         openTaskCompletionSource.TrySetException(ex);
                     }
 
                     openTaskCompletionSource.TrySetResult(false);
 
                     EnableStreamSharing = false;
-                    await DeleteTempFiles(new List<string> { TempFilePath }).ConfigureAwait(false);
+                    await DeleteTempFiles(TempFilePath).ConfigureAwait(false);
                 },
                 CancellationToken.None);
         }

Jellyfin.Api/Controllers/LiveTvController.cs

@@ -1199,15 +1199,15 @@ namespace Jellyfin.Api.Controllers
         [ProducesResponseType(StatusCodes.Status200OK)]
         [ProducesResponseType(StatusCodes.Status404NotFound)]
         [ProducesVideoFile]
-        public async Task<ActionResult> GetLiveStreamFile([FromRoute, Required] string streamId, [FromRoute, Required] string container)
+        public ActionResult GetLiveStreamFile([FromRoute, Required] string streamId, [FromRoute, Required] string container)
         {
-            var liveStreamInfo = await _mediaSourceManager.GetDirectStreamProviderByUniqueId(streamId, CancellationToken.None).ConfigureAwait(false);
+            var liveStreamInfo = _mediaSourceManager.GetLiveStreamInfo(streamId);
             if (liveStreamInfo == null)
             {
                 return NotFound();
             }
 
-            var liveStream = new ProgressiveFileStream(liveStreamInfo.GetFilePath(), null, _transcodingJobHelper);
+            var liveStream = new ProgressiveFileStream(liveStreamInfo.GetStream(), null, _transcodingJobHelper);
             return new FileStreamResult(liveStream, MimeTypes.GetMimeType("file." + container));
         }
 

Jellyfin.Api/Controllers/VideosController.cs

@@ -453,14 +453,10 @@ namespace Jellyfin.Api.Controllers
             {
                 StreamingHelpers.AddDlnaHeaders(state, Response.Headers, true, startTimeTicks, Request, _dlnaManager);
 
-                await new ProgressiveFileCopier(state.DirectStreamProvider, null, _transcodingJobHelper, CancellationToken.None)
-                {
-                    AllowEndOfFile = false
-                }.WriteToAsync(Response.Body, CancellationToken.None)
-                    .ConfigureAwait(false);
-
+                var liveStreamInfo = _mediaSourceManager.GetLiveStreamInfo(streamingRequest.LiveStreamId);
+                var liveStream = new ProgressiveFileStream(liveStreamInfo.GetStream(), null, _transcodingJobHelper);
                 // TODO (moved from MediaBrowser.Api): Don't hardcode contentType
-                return File(Response.Body, MimeTypes.GetMimeType("file.ts")!);
+                return File(liveStream, MimeTypes.GetMimeType("file.ts")!);
             }
 
             // Static remote stream
@@ -492,13 +488,8 @@ namespace Jellyfin.Api.Controllers
 
                 if (state.MediaSource.IsInfiniteStream)
                 {
-                    await new ProgressiveFileCopier(state.MediaPath, null, _transcodingJobHelper, CancellationToken.None)
-                    {
-                        AllowEndOfFile = false
-                    }.WriteToAsync(Response.Body, CancellationToken.None)
-                        .ConfigureAwait(false);
-
-                    return File(Response.Body, contentType);
+                    var liveStream = new ProgressiveFileStream(state.MediaPath, null, _transcodingJobHelper);
+                    return File(liveStream, contentType);
                 }
 
                 return FileStreamResponseHelpers.GetStaticFileResult(

Jellyfin.Api/Helpers/AudioHelper.cs

@@ -120,14 +120,10 @@ namespace Jellyfin.Api.Helpers
             {
                 StreamingHelpers.AddDlnaHeaders(state, _httpContextAccessor.HttpContext.Response.Headers, true, streamingRequest.StartTimeTicks, _httpContextAccessor.HttpContext.Request, _dlnaManager);
 
-                await new ProgressiveFileCopier(state.DirectStreamProvider, null, _transcodingJobHelper, CancellationToken.None)
-                    {
-                        AllowEndOfFile = false
-                    }.WriteToAsync(_httpContextAccessor.HttpContext.Response.Body, CancellationToken.None)
-                    .ConfigureAwait(false);
-
+                var liveStreamInfo = _mediaSourceManager.GetLiveStreamInfo(streamingRequest.LiveStreamId);
+                var liveStream = new ProgressiveFileStream(liveStreamInfo.GetStream(), null, _transcodingJobHelper);
                 // TODO (moved from MediaBrowser.Api): Don't hardcode contentType
-                return new FileStreamResult(_httpContextAccessor.HttpContext.Response.Body, MimeTypes.GetMimeType("file.ts")!);
+                return new FileStreamResult(liveStream, MimeTypes.GetMimeType("file.ts"));
             }
 
             // Static remote stream
@@ -159,13 +155,8 @@ namespace Jellyfin.Api.Helpers
 
                 if (state.MediaSource.IsInfiniteStream)
                 {
-                    await new ProgressiveFileCopier(state.MediaPath, null, _transcodingJobHelper, CancellationToken.None)
-                        {
-                            AllowEndOfFile = false
-                        }.WriteToAsync(_httpContextAccessor.HttpContext.Response.Body, CancellationToken.None)
-                        .ConfigureAwait(false);
-
-                    return new FileStreamResult(_httpContextAccessor.HttpContext.Response.Body, contentType);
+                    var stream = new ProgressiveFileStream(state.MediaPath, null, _transcodingJobHelper);
+                    return new FileStreamResult(stream, contentType);
                 }
 
                 return FileStreamResponseHelpers.GetStaticFileResult(

Jellyfin.Api/Helpers/ProgressiveFileCopier.cs

@@ -1,187 +0,0 @@
-using System;
-using System.Buffers;
-using System.IO;
-using System.Threading;
-using System.Threading.Tasks;
-using Jellyfin.Api.Models.PlaybackDtos;
-using MediaBrowser.Common.Extensions;
-using MediaBrowser.Controller.Library;
-using MediaBrowser.Model.IO;
-
-namespace Jellyfin.Api.Helpers
-{
-    /// <summary>
-    /// Progressive file copier.
-    /// </summary>
-    public class ProgressiveFileCopier
-    {
-        private readonly TranscodingJobDto? _job;
-        private readonly string? _path;
-        private readonly CancellationToken _cancellationToken;
-        private readonly IDirectStreamProvider? _directStreamProvider;
-        private readonly TranscodingJobHelper _transcodingJobHelper;
-        private long _bytesWritten;
-
-        /// <summary>
-        /// Initializes a new instance of the <see cref="ProgressiveFileCopier"/> class.
-        /// </summary>
-        /// <param name="path">The path to copy from.</param>
-        /// <param name="job">The transcoding job.</param>
-        /// <param name="transcodingJobHelper">Instance of the <see cref="TranscodingJobHelper"/>.</param>
-        /// <param name="cancellationToken">The cancellation token.</param>
-        public ProgressiveFileCopier(string path, TranscodingJobDto? job, TranscodingJobHelper transcodingJobHelper, CancellationToken cancellationToken)
-        {
-            _path = path;
-            _job = job;
-            _cancellationToken = cancellationToken;
-            _transcodingJobHelper = transcodingJobHelper;
-        }
-
-        /// <summary>
-        /// Initializes a new instance of the <see cref="ProgressiveFileCopier"/> class.
-        /// </summary>
-        /// <param name="directStreamProvider">Instance of the <see cref="IDirectStreamProvider"/> interface.</param>
-        /// <param name="job">The transcoding job.</param>
-        /// <param name="transcodingJobHelper">Instance of the <see cref="TranscodingJobHelper"/>.</param>
-        /// <param name="cancellationToken">The cancellation token.</param>
-        public ProgressiveFileCopier(IDirectStreamProvider directStreamProvider, TranscodingJobDto? job, TranscodingJobHelper transcodingJobHelper, CancellationToken cancellationToken)
-        {
-            _directStreamProvider = directStreamProvider;
-            _job = job;
-            _cancellationToken = cancellationToken;
-            _transcodingJobHelper = transcodingJobHelper;
-        }
-
-        /// <summary>
-        /// Gets or sets a value indicating whether allow read end of file.
-        /// </summary>
-        public bool AllowEndOfFile { get; set; } = true;
-
-        /// <summary>
-        /// Gets or sets copy start position.
-        /// </summary>
-        public long StartPosition { get; set; }
-
-        /// <summary>
-        /// Write source stream to output.
-        /// </summary>
-        /// <param name="outputStream">Output stream.</param>
-        /// <param name="cancellationToken">Cancellation token.</param>
-        /// <returns>A <see cref="Task"/>.</returns>
-        public async Task WriteToAsync(Stream outputStream, CancellationToken cancellationToken)
-        {
-            using var linkedCancellationTokenSource = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken, _cancellationToken);
-            cancellationToken = linkedCancellationTokenSource.Token;
-
-            try
-            {
-                if (_directStreamProvider != null)
-                {
-                    await _directStreamProvider.CopyToAsync(outputStream, cancellationToken).ConfigureAwait(false);
-                    return;
-                }
-
-                var fileOptions = FileOptions.SequentialScan;
-                var allowAsyncFileRead = false;
-
-                if (AsyncFile.UseAsyncIO)
-                {
-                    fileOptions |= FileOptions.Asynchronous;
-                    allowAsyncFileRead = true;
-                }
-
-                if (_path == null)
-                {
-                    throw new ResourceNotFoundException(nameof(_path));
-                }
-
-                await using var inputStream = new FileStream(_path, FileMode.Open, FileAccess.Read, FileShare.ReadWrite, IODefaults.FileStreamBufferSize, fileOptions);
-
-                var eofCount = 0;
-                const int EmptyReadLimit = 20;
-                if (StartPosition > 0)
-                {
-                    inputStream.Position = StartPosition;
-                }
-
-                while (eofCount < EmptyReadLimit || !AllowEndOfFile)
-                {
-                    var bytesRead = await CopyToInternalAsync(inputStream, outputStream, allowAsyncFileRead, cancellationToken).ConfigureAwait(false);
-
-                    if (bytesRead == 0)
-                    {
-                        if (_job == null || _job.HasExited)
-                        {
-                            eofCount++;
-                        }
-
-                        await Task.Delay(100, cancellationToken).ConfigureAwait(false);
-                    }
-                    else
-                    {
-                        eofCount = 0;
-                    }
-                }
-            }
-            finally
-            {
-                if (_job != null)
-                {
-                    _transcodingJobHelper.OnTranscodeEndRequest(_job);
-                }
-            }
-        }
-
-        private async Task<int> CopyToInternalAsync(Stream source, Stream destination, bool readAsync, CancellationToken cancellationToken)
-        {
-            var array = ArrayPool<byte>.Shared.Rent(IODefaults.CopyToBufferSize);
-            try
-            {
-                int bytesRead;
-                int totalBytesRead = 0;
-
-                if (readAsync)
-                {
-                    bytesRead = await source.ReadAsync(array, 0, array.Length, cancellationToken).ConfigureAwait(false);
-                }
-                else
-                {
-                    bytesRead = source.Read(array, 0, array.Length);
-                }
-
-                while (bytesRead != 0)
-                {
-                    var bytesToWrite = bytesRead;
-
-                    if (bytesToWrite > 0)
-                    {
-                        await destination.WriteAsync(array, 0, Convert.ToInt32(bytesToWrite), cancellationToken).ConfigureAwait(false);
-
-                        _bytesWritten += bytesRead;
-                        totalBytesRead += bytesRead;
-
-                        if (_job != null)
-                        {
-                            _job.BytesDownloaded = Math.Max(_job.BytesDownloaded ?? _bytesWritten, _bytesWritten);
-                        }
-                    }
-
-                    if (readAsync)
-                    {
-                        bytesRead = await source.ReadAsync(array, 0, array.Length, cancellationToken).ConfigureAwait(false);
-                    }
-                    else
-                    {
-                        bytesRead = source.Read(array, 0, array.Length);
-                    }
-                }
-
-                return totalBytesRead;
-            }
-            finally
-            {
-                ArrayPool<byte>.Shared.Return(array);
-            }
-        }
-    }
-}

Jellyfin.Api/Helpers/ProgressiveFileStream.cs

@@ -13,9 +13,9 @@ namespace Jellyfin.Api.Helpers
     /// </summary>
     public class ProgressiveFileStream : Stream
     {
-        private readonly FileStream _fileStream;
+        private readonly Stream _stream;
         private readonly TranscodingJobDto? _job;
-        private readonly TranscodingJobHelper _transcodingJobHelper;
+        private readonly TranscodingJobHelper? _transcodingJobHelper;
         private readonly int _timeoutMs;
         private readonly bool _allowAsyncFileRead;
         private int _bytesWritten;
@@ -33,7 +33,6 @@ namespace Jellyfin.Api.Helpers
             _job = job;
             _transcodingJobHelper = transcodingJobHelper;
             _timeoutMs = timeoutMs;
-            _bytesWritten = 0;
 
             var fileOptions = FileOptions.SequentialScan;
             _allowAsyncFileRead = false;
@@ -45,11 +44,27 @@ namespace Jellyfin.Api.Helpers
                 _allowAsyncFileRead = true;
             }
 
-            _fileStream = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite, IODefaults.FileStreamBufferSize, fileOptions);
+            _stream = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite, IODefaults.FileStreamBufferSize, fileOptions);
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ProgressiveFileStream"/> class.
+        /// </summary>
+        /// <param name="stream">The stream to progressively copy.</param>
+        /// <param name="job">The transcoding job information.</param>
+        /// <param name="transcodingJobHelper">The transcoding job helper.</param>
+        /// <param name="timeoutMs">The timeout duration in milliseconds.</param>
+        public ProgressiveFileStream(Stream stream, TranscodingJobDto? job, TranscodingJobHelper? transcodingJobHelper, int timeoutMs = 30000)
+        {
+            _job = job;
+            _transcodingJobHelper = transcodingJobHelper;
+            _timeoutMs = timeoutMs;
+            _allowAsyncFileRead = AsyncFile.UseAsyncIO;
+            _stream = stream;
         }
 
         /// <inheritdoc />
-        public override bool CanRead => _fileStream.CanRead;
+        public override bool CanRead => _stream.CanRead;
 
         /// <inheritdoc />
         public override bool CanSeek => false;
@@ -70,13 +85,13 @@ namespace Jellyfin.Api.Helpers
         /// <inheritdoc />
         public override void Flush()
         {
-            _fileStream.Flush();
+            _stream.Flush();
         }
 
         /// <inheritdoc />
         public override int Read(byte[] buffer, int offset, int count)
         {
-            return _fileStream.Read(buffer, offset, count);
+            return _stream.Read(buffer, offset, count);
         }
 
         /// <inheritdoc />
@@ -93,11 +108,11 @@ namespace Jellyfin.Api.Helpers
                 int bytesRead;
                 if (_allowAsyncFileRead)
                 {
-                    bytesRead = await _fileStream.ReadAsync(buffer, newOffset, remainingBytesToRead, cancellationToken).ConfigureAwait(false);
+                    bytesRead = await _stream.ReadAsync(buffer, newOffset, remainingBytesToRead, cancellationToken).ConfigureAwait(false);
                 }
                 else
                 {
-                    bytesRead = _fileStream.Read(buffer, newOffset, remainingBytesToRead);
+                    bytesRead = _stream.Read(buffer, newOffset, remainingBytesToRead);
                 }
 
                 remainingBytesToRead -= bytesRead;
@@ -152,11 +167,11 @@ namespace Jellyfin.Api.Helpers
             {
                 if (disposing)
                 {
-                    _fileStream.Dispose();
+                    _stream.Dispose();
 
                     if (_job != null)
                     {
-                        _transcodingJobHelper.OnTranscodeEndRequest(_job);
+                        _transcodingJobHelper?.OnTranscodeEndRequest(_job);
                     }
                 }
             }

Jellyfin.Api/Models/StreamingDtos/StreamState.cs

@@ -60,6 +60,9 @@ namespace Jellyfin.Api.Models.StreamingDtos
         /// <summary>
         /// Gets or sets the direct stream provicer.
         /// </summary>
+        /// <remarks>
+        /// Deprecated.
+        /// </remarks>
         public IDirectStreamProvider? DirectStreamProvider { get; set; }
 
         /// <summary>

MediaBrowser.Controller/Library/IDirectStreamProvider.cs

@@ -0,0 +1,20 @@
+using System.IO;
+
+namespace MediaBrowser.Controller.Library
+{
+    /// <summary>
+    /// The direct live TV stream provider.
+    /// </summary>
+    /// <remarks>
+    /// Deprecated.
+    /// </remarks>
+    public interface IDirectStreamProvider
+    {
+        /// <summary>
+        /// Gets the live stream, optionally seeks to the end of the file first.
+        /// </summary>
+        /// <param name="seekNearEnd">A value indicating whether to seek to the end of the file.</param>
+        /// <returns>The stream.</returns>
+        Stream GetStream(bool seekNearEnd = true);
+    }
+}

MediaBrowser.Controller/Library/ILiveStream.cs

@@ -2,6 +2,7 @@
 
 #pragma warning disable CA1711, CS1591
 
+using System.IO;
 using System.Threading;
 using System.Threading.Tasks;
 using MediaBrowser.Model.Dto;
@@ -25,5 +26,7 @@ namespace MediaBrowser.Controller.Library
         Task Open(CancellationToken openCancellationToken);
 
         Task Close();
+
+        Stream GetStream(bool seekNearEnd = true);
     }
 }

MediaBrowser.Controller/Library/IMediaSourceManager.cs

@@ -4,7 +4,6 @@
 
 using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Threading;
 using System.Threading.Tasks;
 using Jellyfin.Data.Entities;
@@ -110,6 +109,13 @@ namespace MediaBrowser.Controller.Library
 
         Task<Tuple<MediaSourceInfo, IDirectStreamProvider>> GetLiveStreamWithDirectStreamProvider(string id, CancellationToken cancellationToken);
 
+        /// <summary>
+        /// Gets the live stream info.
+        /// </summary>
+        /// <param name="id">The identifier.</param>
+        /// <returns>An instance of <see cref="ILiveStream"/>.</returns>
+        public ILiveStream GetLiveStreamInfo(string id);
+
         /// <summary>
         /// Closes the media source.
         /// </summary>
@@ -129,11 +135,4 @@ namespace MediaBrowser.Controller.Library
 
         Task<IDirectStreamProvider> GetDirectStreamProviderByUniqueId(string uniqueId, CancellationToken cancellationToken);
     }
-
-    public interface IDirectStreamProvider
-    {
-        Task CopyToAsync(Stream stream, CancellationToken cancellationToken);
-
-        string GetFilePath();
-    }
 }