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-rw-r--r--MediaBrowser.Api/Playback/Progressive/ProgressiveStreamWriter.cs182
1 files changed, 0 insertions, 182 deletions
diff --git a/MediaBrowser.Api/Playback/Progressive/ProgressiveStreamWriter.cs b/MediaBrowser.Api/Playback/Progressive/ProgressiveStreamWriter.cs
deleted file mode 100644
index b70fff128..000000000
--- a/MediaBrowser.Api/Playback/Progressive/ProgressiveStreamWriter.cs
+++ /dev/null
@@ -1,182 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Threading;
-using System.Threading.Tasks;
-using MediaBrowser.Controller.Library;
-using MediaBrowser.Model.IO;
-using MediaBrowser.Model.Services;
-using MediaBrowser.Model.System;
-using Microsoft.Extensions.Logging;
-using OperatingSystem = MediaBrowser.Common.System.OperatingSystem;
-
-namespace MediaBrowser.Api.Playback.Progressive
-{
- public class ProgressiveFileCopier : IAsyncStreamWriter, IHasHeaders
- {
- private readonly IFileSystem _fileSystem;
- private readonly TranscodingJob _job;
- private readonly ILogger _logger;
- private readonly string _path;
- private readonly CancellationToken _cancellationToken;
- private readonly Dictionary<string, string> _outputHeaders;
-
- private long _bytesWritten = 0;
- public long StartPosition { get; set; }
-
- public bool AllowEndOfFile = true;
-
- private readonly IDirectStreamProvider _directStreamProvider;
-
- public ProgressiveFileCopier(IFileSystem fileSystem, string path, Dictionary<string, string> outputHeaders, TranscodingJob job, ILogger logger, CancellationToken cancellationToken)
- {
- _fileSystem = fileSystem;
- _path = path;
- _outputHeaders = outputHeaders;
- _job = job;
- _logger = logger;
- _cancellationToken = cancellationToken;
- }
-
- public ProgressiveFileCopier(IDirectStreamProvider directStreamProvider, Dictionary<string, string> outputHeaders, TranscodingJob job, ILogger logger, CancellationToken cancellationToken)
- {
- _directStreamProvider = directStreamProvider;
- _outputHeaders = outputHeaders;
- _job = job;
- _logger = logger;
- _cancellationToken = cancellationToken;
- }
-
- public IDictionary<string, string> Headers => _outputHeaders;
-
- private Stream GetInputStream(bool allowAsyncFileRead)
- {
- var fileOptions = FileOptions.SequentialScan;
-
- if (allowAsyncFileRead)
- {
- fileOptions |= FileOptions.Asynchronous;
- }
-
- return new FileStream(_path, FileMode.Open, FileAccess.Read, FileShare.ReadWrite, IODefaults.FileStreamBufferSize, fileOptions);
- }
-
- public async Task WriteToAsync(Stream outputStream, CancellationToken cancellationToken)
- {
- cancellationToken = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken, _cancellationToken).Token;
-
- try
- {
- if (_directStreamProvider != null)
- {
- await _directStreamProvider.CopyToAsync(outputStream, cancellationToken).ConfigureAwait(false);
- return;
- }
-
- var eofCount = 0;
-
- // use non-async filestream along with read due to https://github.com/dotnet/corefx/issues/6039
- var allowAsyncFileRead = OperatingSystem.Id != OperatingSystemId.Windows;
-
- using (var inputStream = GetInputStream(allowAsyncFileRead))
- {
- if (StartPosition > 0)
- {
- inputStream.Position = StartPosition;
- }
-
- while (eofCount < 20 || !AllowEndOfFile)
- {
- int bytesRead;
- if (allowAsyncFileRead)
- {
- bytesRead = await CopyToInternalAsync(inputStream, outputStream, cancellationToken).ConfigureAwait(false);
- }
- else
- {
- bytesRead = await CopyToInternalAsyncWithSyncRead(inputStream, outputStream, cancellationToken).ConfigureAwait(false);
- }
-
- // var position = fs.Position;
- // _logger.LogDebug("Streamed {0} bytes to position {1} from file {2}", bytesRead, position, path);
-
- if (bytesRead == 0)
- {
- if (_job == null || _job.HasExited)
- {
- eofCount++;
- }
-
- await Task.Delay(100, cancellationToken).ConfigureAwait(false);
- }
- else
- {
- eofCount = 0;
- }
- }
- }
- }
- finally
- {
- if (_job != null)
- {
- ApiEntryPoint.Instance.OnTranscodeEndRequest(_job);
- }
- }
- }
-
- private async Task<int> CopyToInternalAsyncWithSyncRead(Stream source, Stream destination, CancellationToken cancellationToken)
- {
- var array = new byte[IODefaults.CopyToBufferSize];
- int bytesRead;
- int totalBytesRead = 0;
-
- while ((bytesRead = source.Read(array, 0, array.Length)) != 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);
- }
- }
- }
-
- return totalBytesRead;
- }
-
- private async Task<int> CopyToInternalAsync(Stream source, Stream destination, CancellationToken cancellationToken)
- {
- var array = new byte[IODefaults.CopyToBufferSize];
- int bytesRead;
- int totalBytesRead = 0;
-
- while ((bytesRead = await source.ReadAsync(array, 0, array.Length, cancellationToken).ConfigureAwait(false)) != 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);
- }
- }
- }
-
- return totalBytesRead;
- }
- }
-}