From c49539cbe0152d23d82d7710ff2bc32e5d3d187b Mon Sep 17 00:00:00 2001
From: Patrick Barron <barronpm@gmail.com>
Date: Thu, 21 Dec 2023 12:20:30 -0500
Subject: Move ProgressiveFileStream to Controller

---
 Jellyfin.Api/Helpers/ProgressiveFileStream.cs | 182 --------------------------
 1 file changed, 182 deletions(-)
 delete mode 100644 Jellyfin.Api/Helpers/ProgressiveFileStream.cs

(limited to 'Jellyfin.Api/Helpers/ProgressiveFileStream.cs')

diff --git a/Jellyfin.Api/Helpers/ProgressiveFileStream.cs b/Jellyfin.Api/Helpers/ProgressiveFileStream.cs
deleted file mode 100644
index 98ea844a9..000000000
--- a/Jellyfin.Api/Helpers/ProgressiveFileStream.cs
+++ /dev/null
@@ -1,182 +0,0 @@
-using System;
-using System.Diagnostics;
-using System.IO;
-using System.Threading;
-using System.Threading.Tasks;
-using MediaBrowser.Controller.MediaEncoding;
-using MediaBrowser.Model.IO;
-
-namespace Jellyfin.Api.Helpers;
-
-/// <summary>
-/// A progressive file stream for transferring transcoded files as they are written to.
-/// </summary>
-public class ProgressiveFileStream : Stream
-{
-    private readonly Stream _stream;
-    private readonly TranscodingJob? _job;
-    private readonly ITranscodeManager? _transcodeManager;
-    private readonly int _timeoutMs;
-    private bool _disposed;
-
-    /// <summary>
-    /// Initializes a new instance of the <see cref="ProgressiveFileStream"/> class.
-    /// </summary>
-    /// <param name="filePath">The path to the transcoded file.</param>
-    /// <param name="job">The transcoding job information.</param>
-    /// <param name="transcodeManager">The transcode manager.</param>
-    /// <param name="timeoutMs">The timeout duration in milliseconds.</param>
-    public ProgressiveFileStream(string filePath, TranscodingJob? job, ITranscodeManager transcodeManager, int timeoutMs = 30000)
-    {
-        _job = job;
-        _transcodeManager = transcodeManager;
-        _timeoutMs = timeoutMs;
-
-        _stream = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite, IODefaults.FileStreamBufferSize, FileOptions.Asynchronous | FileOptions.SequentialScan);
-    }
-
-    /// <summary>
-    /// Initializes a new instance of the <see cref="ProgressiveFileStream"/> class.
-    /// </summary>
-    /// <param name="stream">The stream to progressively copy.</param>
-    /// <param name="timeoutMs">The timeout duration in milliseconds.</param>
-    public ProgressiveFileStream(Stream stream, int timeoutMs = 30000)
-    {
-        _job = null;
-        _transcodeManager = null;
-        _timeoutMs = timeoutMs;
-        _stream = stream;
-    }
-
-    /// <inheritdoc />
-    public override bool CanRead => _stream.CanRead;
-
-    /// <inheritdoc />
-    public override bool CanSeek => false;
-
-    /// <inheritdoc />
-    public override bool CanWrite => false;
-
-    /// <inheritdoc />
-    public override long Length => throw new NotSupportedException();
-
-    /// <inheritdoc />
-    public override long Position
-    {
-        get => throw new NotSupportedException();
-        set => throw new NotSupportedException();
-    }
-
-    /// <inheritdoc />
-    public override void Flush()
-    {
-        // Not supported
-    }
-
-    /// <inheritdoc />
-    public override int Read(byte[] buffer, int offset, int count)
-        => Read(buffer.AsSpan(offset, count));
-
-    /// <inheritdoc />
-    public override int Read(Span<byte> buffer)
-    {
-        int totalBytesRead = 0;
-        var stopwatch = Stopwatch.StartNew();
-
-        while (true)
-        {
-            totalBytesRead += _stream.Read(buffer);
-            if (StopReading(totalBytesRead, stopwatch.ElapsedMilliseconds))
-            {
-                break;
-            }
-
-            Thread.Sleep(50);
-        }
-
-        UpdateBytesWritten(totalBytesRead);
-
-        return totalBytesRead;
-    }
-
-    /// <inheritdoc />
-    public override async Task<int> ReadAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)
-        => await ReadAsync(buffer.AsMemory(offset, count), cancellationToken).ConfigureAwait(false);
-
-    /// <inheritdoc />
-    public override async ValueTask<int> ReadAsync(Memory<byte> buffer, CancellationToken cancellationToken = default)
-    {
-        int totalBytesRead = 0;
-        var stopwatch = Stopwatch.StartNew();
-
-        while (true)
-        {
-            totalBytesRead += await _stream.ReadAsync(buffer, cancellationToken).ConfigureAwait(false);
-            if (StopReading(totalBytesRead, stopwatch.ElapsedMilliseconds))
-            {
-                break;
-            }
-
-            await Task.Delay(50, cancellationToken).ConfigureAwait(false);
-        }
-
-        UpdateBytesWritten(totalBytesRead);
-
-        return totalBytesRead;
-    }
-
-    /// <inheritdoc />
-    public override long Seek(long offset, SeekOrigin origin)
-        => throw new NotSupportedException();
-
-    /// <inheritdoc />
-    public override void SetLength(long value)
-        => throw new NotSupportedException();
-
-    /// <inheritdoc />
-    public override void Write(byte[] buffer, int offset, int count)
-        => throw new NotSupportedException();
-
-    /// <inheritdoc />
-    protected override void Dispose(bool disposing)
-    {
-        if (_disposed)
-        {
-            return;
-        }
-
-        try
-        {
-            if (disposing)
-            {
-                _stream.Dispose();
-
-                if (_job is not null)
-                {
-                    _transcodeManager?.OnTranscodeEndRequest(_job);
-                }
-            }
-        }
-        finally
-        {
-            _disposed = true;
-            base.Dispose(disposing);
-        }
-    }
-
-    private void UpdateBytesWritten(int totalBytesRead)
-    {
-        if (_job is not null)
-        {
-            _job.BytesDownloaded += totalBytesRead;
-        }
-    }
-
-    private bool StopReading(int bytesRead, long elapsed)
-    {
-        // It should stop reading when anything has been successfully read or if the job has exited
-        // If the job is null, however, it's a live stream and will require user action to close,
-        // but don't keep it open indefinitely if it isn't reading anything
-        return bytesRead > 0 || (_job?.HasExited ?? elapsed >= _timeoutMs);
-    }
-}
-- 
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