3 files changed, 4 insertions, 24 deletions
diff --git a/Jellyfin.Api/Helpers/HlsHelpers.cs b/Jellyfin.Api/Helpers/HlsHelpers.cs
index f36769dc2..456762147 100644
--- a/Jellyfin.Api/Helpers/HlsHelpers.cs
+++ b/Jellyfin.Api/Helpers/HlsHelpers.cs
@@ -38,7 +38,7 @@ namespace Jellyfin.Api.Helpers
                         FileAccess.Read,
                         FileShare.ReadWrite,
                         IODefaults.FileStreamBufferSize,
-                        (AsyncFile.UseAsyncIO ? FileOptions.Asynchronous : FileOptions.None) | FileOptions.SequentialScan);
+                        FileOptions.Asynchronous | FileOptions.SequentialScan);
                     await using (fileStream.ConfigureAwait(false))
                     {
                         using var reader = new StreamReader(fileStream);
diff --git a/Jellyfin.Api/Helpers/ProgressiveFileStream.cs b/Jellyfin.Api/Helpers/ProgressiveFileStream.cs
index c57018351..61e18220a 100644
--- a/Jellyfin.Api/Helpers/ProgressiveFileStream.cs
+++ b/Jellyfin.Api/Helpers/ProgressiveFileStream.cs
@@ -17,7 +17,6 @@ namespace Jellyfin.Api.Helpers
         private readonly TranscodingJobDto? _job;
         private readonly TranscodingJobHelper? _transcodingJobHelper;
         private readonly int _timeoutMs;
-        private readonly bool _allowAsyncFileRead;
         private int _bytesWritten;
         private bool _disposed;
 
@@ -34,17 +33,7 @@ namespace Jellyfin.Api.Helpers
             _transcodingJobHelper = transcodingJobHelper;
             _timeoutMs = timeoutMs;
 
-            var fileOptions = FileOptions.SequentialScan;
-            _allowAsyncFileRead = false;
-
-            // use non-async filestream along with read due to https://github.com/dotnet/corefx/issues/6039
-            if (AsyncFile.UseAsyncIO)
-            {
-                fileOptions |= FileOptions.Asynchronous;
-                _allowAsyncFileRead = true;
-            }
-
-            _stream = 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.Asynchronous | FileOptions.SequentialScan);
         }
 
         /// <summary>
@@ -57,7 +46,6 @@ namespace Jellyfin.Api.Helpers
             _job = null;
             _transcodingJobHelper = null;
             _timeoutMs = timeoutMs;
-            _allowAsyncFileRead = AsyncFile.UseAsyncIO;
             _stream = stream;
         }
 
@@ -103,15 +91,7 @@ namespace Jellyfin.Api.Helpers
             while (remainingBytesToRead > 0)
             {
                 cancellationToken.ThrowIfCancellationRequested();
-                int bytesRead;
-                if (_allowAsyncFileRead)
-                {
-                    bytesRead = await _stream.ReadAsync(buffer, newOffset, remainingBytesToRead, cancellationToken).ConfigureAwait(false);
-                }
-                else
-                {
-                    bytesRead = _stream.Read(buffer, newOffset, remainingBytesToRead);
-                }
+                int bytesRead = await _stream.ReadAsync(buffer, newOffset, remainingBytesToRead, cancellationToken).ConfigureAwait(false);
 
                 remainingBytesToRead -= bytesRead;
                 newOffset += bytesRead;
diff --git a/Jellyfin.Api/Helpers/TranscodingJobHelper.cs b/Jellyfin.Api/Helpers/TranscodingJobHelper.cs
index 4e1e98df0..14f287aef 100644
--- a/Jellyfin.Api/Helpers/TranscodingJobHelper.cs
+++ b/Jellyfin.Api/Helpers/TranscodingJobHelper.cs
@@ -557,7 +557,7 @@ namespace Jellyfin.Api.Helpers
                 $"{logFilePrefix}{DateTime.Now:yyyy-MM-dd_HH-mm-ss}_{state.Request.MediaSourceId}_{Guid.NewGuid().ToString()[..8]}.log");
 
             // FFmpeg writes debug/error info to stderr. This is useful when debugging so let's put it in the log directory.
-            Stream logStream = new FileStream(logFilePath, FileMode.Create, FileAccess.Write, FileShare.Read, IODefaults.FileStreamBufferSize, AsyncFile.UseAsyncIO);
+            Stream logStream = new FileStream(logFilePath, FileMode.Create, FileAccess.Write, FileShare.Read, IODefaults.FileStreamBufferSize, FileOptions.Asynchronous);
 
             var commandLineLogMessageBytes = Encoding.UTF8.GetBytes(request.Path + Environment.NewLine + Environment.NewLine + JsonSerializer.Serialize(state.MediaSource) + Environment.NewLine + Environment.NewLine + commandLineLogMessage + Environment.NewLine + Environment.NewLine);
             await logStream.WriteAsync(commandLineLogMessageBytes, 0, commandLineLogMessageBytes.Length, cancellationTokenSource.Token).ConfigureAwait(false);