mirror of
https://github.com/jellyfin/jellyfin.git
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195 lines
6.3 KiB
C#
195 lines
6.3 KiB
C#
using MediaBrowser.Common.Configuration;
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using MediaBrowser.Common.ScheduledTasks;
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using MediaBrowser.Controller.Configuration;
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using MediaBrowser.Controller.Entities;
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using MediaBrowser.Controller.Entities.Movies;
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using MediaBrowser.Controller.Entities.TV;
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using MediaBrowser.Controller.Library;
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using MediaBrowser.Controller.Subtitles;
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using MediaBrowser.Model.Entities;
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using MediaBrowser.Model.Logging;
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using MediaBrowser.Model.Providers;
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using System;
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using System.Collections.Generic;
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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 System.IO;
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using MediaBrowser.Model.Serialization;
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namespace MediaBrowser.Providers.MediaInfo
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{
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public class SubtitleScheduledTask : IScheduledTask
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{
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private readonly ILibraryManager _libraryManager;
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private readonly IServerConfigurationManager _config;
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private readonly ISubtitleManager _subtitleManager;
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private readonly IMediaSourceManager _mediaSourceManager;
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private readonly ILogger _logger;
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private readonly IJsonSerializer _json;
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public SubtitleScheduledTask(ILibraryManager libraryManager, IJsonSerializer json, IServerConfigurationManager config, ISubtitleManager subtitleManager, ILogger logger, IMediaSourceManager mediaSourceManager)
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{
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_libraryManager = libraryManager;
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_config = config;
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_subtitleManager = subtitleManager;
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_logger = logger;
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_mediaSourceManager = mediaSourceManager;
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_json = json;
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}
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public string Name
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{
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get { return "Download missing subtitles"; }
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}
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public string Description
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{
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get { return "Searches the internet for missing subtitles based on metadata configuration."; }
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}
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public string Category
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{
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get { return "Library"; }
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}
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private SubtitleOptions GetOptions()
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{
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return _config.GetConfiguration<SubtitleOptions>("subtitles");
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}
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public async Task Execute(CancellationToken cancellationToken, IProgress<double> progress)
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{
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var options = GetOptions();
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var types = new List<string>();
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if (options.DownloadEpisodeSubtitles)
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{
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types.Add("Episode");
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}
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if (options.DownloadMovieSubtitles)
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{
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types.Add("Movie");
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}
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if (types.Count == 0)
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{
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return;
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}
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var videos = _libraryManager.GetItemList(new InternalItemsQuery
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{
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MediaTypes = new string[] { MediaType.Video },
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IsVirtualItem = false,
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ExcludeLocationTypes = new LocationType[] { LocationType.Remote, LocationType.Virtual },
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IncludeItemTypes = types.ToArray()
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}).OfType<Video>()
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.ToList();
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var failHistoryPath = Path.Combine(_config.ApplicationPaths.CachePath, "subtitlehistory.json");
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var history = GetHistory(failHistoryPath);
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var numComplete = 0;
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foreach (var video in videos)
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{
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DateTime lastAttempt;
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if (history.TryGetValue(video.Id.ToString("N"), out lastAttempt))
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{
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if ((DateTime.UtcNow - lastAttempt).TotalDays <= 7)
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{
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continue;
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}
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}
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try
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{
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var shouldRetry = await DownloadSubtitles(video, options, cancellationToken).ConfigureAwait(false);
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if (shouldRetry)
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{
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history[video.Id.ToString("N")] = DateTime.UtcNow;
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}
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else
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{
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history.Remove(video.Id.ToString("N"));
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}
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}
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catch (Exception ex)
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{
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_logger.ErrorException("Error downloading subtitles for {0}", ex, video.Path);
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history[video.Id.ToString("N")] = DateTime.UtcNow;
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}
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// Update progress
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numComplete++;
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double percent = numComplete;
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percent /= videos.Count;
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progress.Report(100 * percent);
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}
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_json.SerializeToFile(history, failHistoryPath);
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}
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private Dictionary<string,DateTime> GetHistory(string path)
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{
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try
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{
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var result = _json.DeserializeFromFile<Dictionary<string, DateTime>>(path);
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if (result != null)
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{
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return result;
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}
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}
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catch
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{
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}
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return new Dictionary<string, DateTime>();
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}
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private async Task<bool> DownloadSubtitles(Video video, SubtitleOptions options, CancellationToken cancellationToken)
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{
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if ((options.DownloadEpisodeSubtitles &&
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video is Episode) ||
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(options.DownloadMovieSubtitles &&
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video is Movie))
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{
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var mediaStreams = _mediaSourceManager.GetStaticMediaSources(video, false).First().MediaStreams;
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var downloadedLanguages = await new SubtitleDownloader(_logger,
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_subtitleManager)
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.DownloadSubtitles(video,
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mediaStreams,
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options.SkipIfEmbeddedSubtitlesPresent,
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options.SkipIfAudioTrackMatches,
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options.RequirePerfectMatch,
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options.DownloadLanguages,
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cancellationToken).ConfigureAwait(false);
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// Rescan
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if (downloadedLanguages.Count > 0)
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{
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await video.RefreshMetadata(cancellationToken).ConfigureAwait(false);
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return false;
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}
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return true;
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}
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return false;
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}
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public IEnumerable<ITaskTrigger> GetDefaultTriggers()
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{
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return new ITaskTrigger[]
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{
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new IntervalTrigger{ Interval = TimeSpan.FromHours(8)}
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};
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}
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}
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}
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