Add jellyfin api entry point
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David
parent
2cb6eb984b
commit
9be20cfaa6
405
Jellyfin.Api/JellyfinApiEntryPoint.cs
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405
Jellyfin.Api/JellyfinApiEntryPoint.cs
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Threading;
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using System.Threading.Tasks;
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using Jellyfin.Api.Models.TranscodingDtos;
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using MediaBrowser.Common.Configuration;
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using MediaBrowser.Controller.Configuration;
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using MediaBrowser.Controller.Library;
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using MediaBrowser.Controller.MediaEncoding;
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using MediaBrowser.Controller.Plugins;
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using MediaBrowser.Controller.Session;
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using MediaBrowser.Model.IO;
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using Microsoft.Extensions.Logging;
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namespace Jellyfin.Api
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{
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/// <summary>
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/// The jellyfin api entry point.
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/// </summary>
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public class JellyfinApiEntryPoint : IServerEntryPoint
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{
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private readonly ILogger _logger;
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private readonly IServerConfigurationManager _serverConfigurationManager;
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private readonly ISessionManager _sessionManager;
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private readonly IFileSystem _fileSystem;
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private readonly IMediaSourceManager _mediaSourceManager;
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private readonly List<TranscodingJob> _activeTranscodingJobs;
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private readonly Dictionary<string, SemaphoreSlim> _transcodingLocks;
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private bool _disposed = false;
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/// <summary>
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/// Initializes a new instance of the <see cref="JellyfinApiEntryPoint" /> class.
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/// </summary>
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/// <param name="logger">The logger.</param>
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/// <param name="sessionManager">The session manager.</param>
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/// <param name="config">The configuration.</param>
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/// <param name="fileSystem">The file system.</param>
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/// <param name="mediaSourceManager">The media source manager.</param>
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public JellyfinApiEntryPoint(
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ILogger<JellyfinApiEntryPoint> logger,
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ISessionManager sessionManager,
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IServerConfigurationManager config,
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IFileSystem fileSystem,
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IMediaSourceManager mediaSourceManager)
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{
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_logger = logger;
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_sessionManager = sessionManager;
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_serverConfigurationManager = config;
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_fileSystem = fileSystem;
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_mediaSourceManager = mediaSourceManager;
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_activeTranscodingJobs = new List<TranscodingJob>();
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_transcodingLocks = new Dictionary<string, SemaphoreSlim>();
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_sessionManager!.PlaybackProgress += OnPlaybackProgress;
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_sessionManager!.PlaybackStart += OnPlaybackProgress;
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Instance = this;
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}
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/// <summary>
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/// Gets the initialized instance of <see cref="JellyfinApiEntryPoint"/>.
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/// </summary>
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public static JellyfinApiEntryPoint? Instance { get; private set; }
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/// <inheritdoc />
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public void Dispose()
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{
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Dispose(true);
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GC.SuppressFinalize(this);
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}
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/// <summary>
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/// Releases unmanaged and - optionally - managed resources.
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/// </summary>
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/// <param name="dispose"><c>true</c> to release both managed and unmanaged resources; <c>false</c> to release only unmanaged resources.</param>
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protected virtual void Dispose(bool dispose)
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{
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if (_disposed)
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{
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return;
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}
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if (dispose)
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{
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// TODO: dispose
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}
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List<TranscodingJob> jobs;
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lock (_activeTranscodingJobs)
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{
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jobs = _activeTranscodingJobs.ToList();
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}
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var jobCount = jobs.Count;
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IEnumerable<Task> GetKillJobs()
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{
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foreach (var job in jobs)
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{
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yield return KillTranscodingJob(job, false, path => true);
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}
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}
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// Wait for all processes to be killed
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if (jobCount > 0)
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{
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Task.WaitAll(GetKillJobs().ToArray());
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}
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lock (_activeTranscodingJobs)
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{
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_activeTranscodingJobs.Clear();
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}
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lock (_transcodingLocks)
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{
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_transcodingLocks.Clear();
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}
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_sessionManager.PlaybackProgress -= OnPlaybackProgress;
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_sessionManager.PlaybackStart -= OnPlaybackProgress;
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_disposed = true;
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}
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/// <inheritdoc />
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public Task RunAsync()
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{
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try
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{
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DeleteEncodedMediaCache();
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}
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catch (Exception ex)
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{
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_logger.LogError(ex, "Error deleting encoded media cache");
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}
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return Task.CompletedTask;
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}
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private void OnPlaybackProgress(object sender, PlaybackProgressEventArgs e)
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{
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if (!string.IsNullOrWhiteSpace(e.PlaySessionId))
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{
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PingTranscodingJob(e.PlaySessionId, e.IsPaused);
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}
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}
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/// <summary>
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/// Deletes the encoded media cache.
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/// </summary>
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private void DeleteEncodedMediaCache()
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{
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var path = _serverConfigurationManager.GetTranscodePath();
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if (!Directory.Exists(path))
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{
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return;
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}
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foreach (var file in _fileSystem.GetFilePaths(path, true))
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{
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_fileSystem.DeleteFile(file);
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}
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}
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internal void PingTranscodingJob(string playSessionId, bool? isUserPaused)
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{
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if (string.IsNullOrEmpty(playSessionId))
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{
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throw new ArgumentNullException(nameof(playSessionId));
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}
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_logger.LogDebug("PingTranscodingJob PlaySessionId={0} isUsedPaused: {1}", playSessionId, isUserPaused);
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List<TranscodingJob> jobs;
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lock (_activeTranscodingJobs)
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{
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// This is really only needed for HLS.
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// Progressive streams can stop on their own reliably
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jobs = _activeTranscodingJobs.Where(j => string.Equals(playSessionId, j.PlaySessionId, StringComparison.OrdinalIgnoreCase)).ToList();
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}
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foreach (var job in jobs)
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{
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if (isUserPaused.HasValue)
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{
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_logger.LogDebug("Setting job.IsUserPaused to {0}. jobId: {1}", isUserPaused, job.Id);
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job.IsUserPaused = isUserPaused.Value;
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}
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PingTimer(job, true);
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}
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}
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private void PingTimer(TranscodingJob job, bool isProgressCheckIn)
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{
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if (job.HasExited)
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{
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job.StopKillTimer();
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return;
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}
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var timerDuration = 10000;
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if (job.Type != TranscodingJobType.Progressive)
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{
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timerDuration = 60000;
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}
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job.PingTimeout = timerDuration;
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job.LastPingDate = DateTime.UtcNow;
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// Don't start the timer for playback checkins with progressive streaming
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if (job.Type != TranscodingJobType.Progressive || !isProgressCheckIn)
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{
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job.StartKillTimer(OnTranscodeKillTimerStopped);
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}
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else
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{
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job.ChangeKillTimerIfStarted();
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}
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}
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/// <summary>
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/// Called when [transcode kill timer stopped].
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/// </summary>
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/// <param name="state">The state.</param>
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private async void OnTranscodeKillTimerStopped(object state)
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{
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var job = (TranscodingJob)state;
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if (!job.HasExited && job.Type != TranscodingJobType.Progressive)
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{
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var timeSinceLastPing = (DateTime.UtcNow - job.LastPingDate).TotalMilliseconds;
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if (timeSinceLastPing < job.PingTimeout)
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{
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job.StartKillTimer(OnTranscodeKillTimerStopped, job.PingTimeout);
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return;
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}
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}
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_logger.LogInformation("Transcoding kill timer stopped for JobId {0} PlaySessionId {1}. Killing transcoding", job.Id, job.PlaySessionId);
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await KillTranscodingJob(job, true, path => true).ConfigureAwait(false);
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}
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/// <summary>
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/// Kills the transcoding job.
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/// </summary>
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/// <param name="job">The job.</param>
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/// <param name="closeLiveStream">if set to <c>true</c> [close live stream].</param>
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/// <param name="delete">The delete.</param>
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private async Task KillTranscodingJob(TranscodingJob job, bool closeLiveStream, Func<string, bool> delete)
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{
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job.DisposeKillTimer();
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_logger.LogDebug("KillTranscodingJob - JobId {0} PlaySessionId {1}. Killing transcoding", job.Id, job.PlaySessionId);
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lock (_activeTranscodingJobs)
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{
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_activeTranscodingJobs.Remove(job);
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if (!job.CancellationTokenSource!.IsCancellationRequested)
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{
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job.CancellationTokenSource.Cancel();
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}
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}
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lock (_transcodingLocks)
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{
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_transcodingLocks.Remove(job.Path!);
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}
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lock (job)
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{
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job.TranscodingThrottler?.Stop().GetAwaiter().GetResult();
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var process = job.Process;
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var hasExited = job.HasExited;
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if (!hasExited)
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{
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try
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{
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_logger.LogInformation("Stopping ffmpeg process with q command for {Path}", job.Path);
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process?.StandardInput.WriteLine("q");
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// Need to wait (an arbitrary amount of time) because killing is asynchronous
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if (!process!.WaitForExit(5000))
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{
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_logger.LogInformation("Killing ffmpeg process for {Path}", job.Path);
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process.Kill();
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}
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}
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catch (InvalidOperationException)
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{
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}
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}
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}
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if (delete(job.Path!))
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{
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await DeletePartialStreamFiles(job.Path!, job.Type, 0, 1500).ConfigureAwait(false);
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}
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if (closeLiveStream && !string.IsNullOrWhiteSpace(job.LiveStreamId))
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{
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try
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{
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await _mediaSourceManager.CloseLiveStream(job.LiveStreamId).ConfigureAwait(false);
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}
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catch (Exception ex)
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{
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_logger.LogError(ex, "Error closing live stream for {Path}", job.Path);
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}
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}
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}
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private async Task DeletePartialStreamFiles(string path, TranscodingJobType jobType, int retryCount, int delayMs)
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{
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if (retryCount >= 10)
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{
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return;
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}
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_logger.LogInformation("Deleting partial stream file(s) {Path}", path);
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await Task.Delay(delayMs).ConfigureAwait(false);
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try
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{
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if (jobType == TranscodingJobType.Progressive)
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{
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DeleteProgressivePartialStreamFiles(path);
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}
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else
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{
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DeleteHlsPartialStreamFiles(path);
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}
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}
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catch (IOException ex)
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{
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_logger.LogError(ex, "Error deleting partial stream file(s) {Path}", path);
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await DeletePartialStreamFiles(path, jobType, retryCount + 1, 500).ConfigureAwait(false);
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}
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catch (Exception ex)
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{
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_logger.LogError(ex, "Error deleting partial stream file(s) {Path}", path);
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}
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}
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/// <summary>
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/// Deletes the progressive partial stream files.
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/// </summary>
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/// <param name="outputFilePath">The output file path.</param>
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private void DeleteProgressivePartialStreamFiles(string outputFilePath)
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{
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if (File.Exists(outputFilePath))
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{
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_fileSystem.DeleteFile(outputFilePath);
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}
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}
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/// <summary>
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/// Deletes the HLS partial stream files.
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/// </summary>
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/// <param name="outputFilePath">The output file path.</param>
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private void DeleteHlsPartialStreamFiles(string outputFilePath)
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{
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var directory = Path.GetDirectoryName(outputFilePath);
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var name = Path.GetFileNameWithoutExtension(outputFilePath);
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var filesToDelete = _fileSystem.GetFilePaths(directory)
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.Where(f => f.IndexOf(name, StringComparison.OrdinalIgnoreCase) != -1);
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List<Exception>? exs = null;
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foreach (var file in filesToDelete)
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{
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try
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{
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_logger.LogDebug("Deleting HLS file {0}", file);
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_fileSystem.DeleteFile(file);
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}
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catch (IOException ex)
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{
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(exs ??= new List<Exception>(4)).Add(ex);
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_logger.LogError(ex, "Error deleting HLS file {Path}", file);
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}
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}
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if (exs != null)
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{
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throw new AggregateException("Error deleting HLS files", exs);
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}
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}
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}
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}
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239
Jellyfin.Api/Models/TranscodingDtos/TranscodingJob.cs
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239
Jellyfin.Api/Models/TranscodingDtos/TranscodingJob.cs
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using System;
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using System.Diagnostics;
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using System.Threading;
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using Jellyfin.Api.Models.PlaybackDtos;
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using MediaBrowser.Controller.MediaEncoding;
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using MediaBrowser.Model.Dto;
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using Microsoft.Extensions.Logging;
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namespace Jellyfin.Api.Models.TranscodingDtos
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{
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/// <summary>
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/// The transcoding job.
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/// </summary>
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public class TranscodingJob
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{
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private readonly ILogger _logger;
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private readonly object _timerLock = new object();
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/// <summary>
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/// Initializes a new instance of the <see cref="TranscodingJob"/> class.
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/// </summary>
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/// <param name="logger">Instance of the <see cref="ILogger{TranscodingJob}"/> interface.</param>
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public TranscodingJob(ILogger<TranscodingJob> logger)
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{
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_logger = logger;
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}
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/// <summary>
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/// Gets or sets the play session identifier.
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/// </summary>
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/// <value>The play session identifier.</value>
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public string? PlaySessionId { get; set; }
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/// <summary>
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/// Gets or sets the live stream identifier.
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/// </summary>
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/// <value>The live stream identifier.</value>
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public string? LiveStreamId { get; set; }
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/// <summary>
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/// Gets or sets a value indicating whether the transcoding job is a live output.
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/// </summary>
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public bool IsLiveOutput { get; set; }
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/// <summary>
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/// Gets or sets the path.
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/// </summary>
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/// <value>The path.</value>
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public MediaSourceInfo? MediaSource { get; set; }
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/// <summary>
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/// Gets or sets the transcoding path.
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/// </summary>
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public string? Path { get; set; }
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/// <summary>
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/// Gets or sets the type.
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/// </summary>
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/// <value>The type.</value>
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public TranscodingJobType Type { get; set; }
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/// <summary>
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/// Gets or sets the process.
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/// </summary>
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/// <value>The process.</value>
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public Process? Process { get; set; }
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/// <summary>
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/// Gets or sets the active request count.
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/// </summary>
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/// <value>The active request count.</value>
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public int ActiveRequestCount { get; set; }
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/// <summary>
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/// Gets or sets the kill timer.
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/// </summary>
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/// <value>The kill timer.</value>
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private Timer? KillTimer { get; set; }
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/// <summary>
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/// Gets or sets the device id.
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/// </summary>
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public string? DeviceId { get; set; }
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/// <summary>
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/// Gets or sets the cancellation token source.
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/// </summary>
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public CancellationTokenSource? CancellationTokenSource { get; set; }
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/// <summary>
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/// Gets or sets a value indicating whether the transcoding job has exited.
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/// </summary>
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public bool HasExited { get; set; }
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/// <summary>
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/// Gets or sets a value indicating whether the user has paused the video.
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/// </summary>
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public bool IsUserPaused { get; set; }
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/// <summary>
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/// Gets or sets the id.
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/// </summary>
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public string? Id { get; set; }
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/// <summary>
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/// Gets or sets the framerate.
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/// </summary>
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public float? Framerate { get; set; }
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/// <summary>
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/// Gets or sets the completion percentage.
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/// </summary>
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public double? CompletionPercentage { get; set; }
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/// <summary>
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/// Gets or sets the bytes downloaded.
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/// </summary>
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public long? BytesDownloaded { get; set; }
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/// <summary>
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/// Gets or sets the bytes transcoded.
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/// </summary>
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public long? BytesTranscoded { get; set; }
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/// <summary>
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/// Gets or sets the bitrate.
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/// </summary>
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public int? BitRate { get; set; }
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||||
|
||||
/// <summary>
|
||||
/// Gets or sets the transcoding position ticks.
|
||||
/// </summary>
|
||||
public long? TranscodingPositionTicks { get; set; }
|
||||
|
||||
/// <summary>
|
||||
/// Gets or sets the download position ticks.
|
||||
/// </summary>
|
||||
public long? DownloadPositionTicks { get; set; }
|
||||
|
||||
/// <summary>
|
||||
/// Gets or sets the transcodign throttler.
|
||||
/// </summary>
|
||||
public TranscodingThrottler? TranscodingThrottler { get; set; }
|
||||
|
||||
/// <summary>
|
||||
/// Gets or sets the last ping datetime.
|
||||
/// </summary>
|
||||
public DateTime LastPingDate { get; set; }
|
||||
|
||||
/// <summary>
|
||||
/// Gets or sets the ping timeout.
|
||||
/// </summary>
|
||||
public int PingTimeout { get; set; }
|
||||
|
||||
/// <summary>
|
||||
/// Stops the kill timer.
|
||||
/// </summary>
|
||||
public void StopKillTimer()
|
||||
{
|
||||
lock (_timerLock)
|
||||
{
|
||||
KillTimer?.Change(Timeout.Infinite, Timeout.Infinite);
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Disposes the kill timer.
|
||||
/// </summary>
|
||||
public void DisposeKillTimer()
|
||||
{
|
||||
lock (_timerLock)
|
||||
{
|
||||
if (KillTimer != null)
|
||||
{
|
||||
KillTimer.Dispose();
|
||||
KillTimer = null;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Starts the kill timer.
|
||||
/// </summary>
|
||||
/// <param name="callback">The amount of ms the timer should wait before the transcoding job gets killed.</param>
|
||||
public void StartKillTimer(Action<object> callback)
|
||||
{
|
||||
StartKillTimer(callback, PingTimeout);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Starts the kill timer.
|
||||
/// </summary>
|
||||
/// <param name="callback">The <see cref="Action"/> to run when the kill timer has finished.</param>
|
||||
/// <param name="intervalMs">The amount of ms the timer should wait before the transcoding job gets killed.</param>
|
||||
public void StartKillTimer(Action<object> callback, int intervalMs)
|
||||
{
|
||||
if (HasExited)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
lock (_timerLock)
|
||||
{
|
||||
if (KillTimer == null)
|
||||
{
|
||||
_logger.LogDebug($"Starting kill timer at {intervalMs}ms. JobId {Id} PlaySessionId {PlaySessionId}");
|
||||
KillTimer = new Timer(new TimerCallback(callback), this, intervalMs, Timeout.Infinite);
|
||||
}
|
||||
else
|
||||
{
|
||||
_logger.LogDebug($"Changing kill timer to {intervalMs}ms. JobId {Id} PlaySessionId {PlaySessionId}");
|
||||
KillTimer.Change(intervalMs, Timeout.Infinite);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Changes the kill timer if it has started.
|
||||
/// </summary>
|
||||
public void ChangeKillTimerIfStarted()
|
||||
{
|
||||
if (HasExited)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
lock (_timerLock)
|
||||
{
|
||||
if (KillTimer != null)
|
||||
{
|
||||
var intervalMs = PingTimeout;
|
||||
|
||||
_logger.LogDebug($"Changing kill timer to {intervalMs}ms. JobId {Id} PlaySessionId {PlaySessionId}");
|
||||
KillTimer.Change(intervalMs, Timeout.Infinite);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user