diff options
Diffstat (limited to 'Jellyfin.Api/Helpers')
| -rw-r--r-- | Jellyfin.Api/Helpers/ProgressiveFileCopier.cs | 84 | ||||
| -rw-r--r-- | Jellyfin.Api/Helpers/RequestHelpers.cs | 83 | ||||
| -rw-r--r-- | Jellyfin.Api/Helpers/SimilarItemsHelper.cs | 14 | ||||
| -rw-r--r-- | Jellyfin.Api/Helpers/TranscodingJobHelper.cs | 353 |
4 files changed, 526 insertions, 8 deletions
diff --git a/Jellyfin.Api/Helpers/ProgressiveFileCopier.cs b/Jellyfin.Api/Helpers/ProgressiveFileCopier.cs new file mode 100644 index 000000000..e8e6966f4 --- /dev/null +++ b/Jellyfin.Api/Helpers/ProgressiveFileCopier.cs @@ -0,0 +1,84 @@ +using System; +using System.IO; +using System.Threading; +using System.Threading.Tasks; +using MediaBrowser.Controller.Library; +using MediaBrowser.Model.IO; + +namespace Jellyfin.Api.Helpers +{ + /// <summary> + /// Progressive file copier. + /// </summary> + public class ProgressiveFileCopier + { + private readonly string? _path; + private readonly IDirectStreamProvider? _directStreamProvider; + private readonly IStreamHelper _streamHelper; + + /// <summary> + /// Initializes a new instance of the <see cref="ProgressiveFileCopier"/> class. + /// </summary> + /// <param name="streamHelper">Instance of the <see cref="IStreamHelper"/> interface.</param> + /// <param name="path">Filepath to stream from.</param> + public ProgressiveFileCopier(IStreamHelper streamHelper, string path) + { + _path = path; + _streamHelper = streamHelper; + _directStreamProvider = null; + } + + /// <summary> + /// Initializes a new instance of the <see cref="ProgressiveFileCopier"/> class. + /// </summary> + /// <param name="streamHelper">Instance of the <see cref="IStreamHelper"/> interface.</param> + /// <param name="directStreamProvider">Instance of the <see cref="IDirectStreamProvider"/> interface.</param> + public ProgressiveFileCopier(IStreamHelper streamHelper, IDirectStreamProvider directStreamProvider) + { + _directStreamProvider = directStreamProvider; + _streamHelper = streamHelper; + _path = null; + } + + /// <summary> + /// Write source stream to output. + /// </summary> + /// <param name="outputStream">Output stream.</param> + /// <param name="cancellationToken">Cancellation token.</param> + /// <returns>A <see cref="Task"/>.</returns> + public async Task WriteToAsync(Stream outputStream, CancellationToken cancellationToken) + { + if (_directStreamProvider != null) + { + await _directStreamProvider.CopyToAsync(outputStream, cancellationToken).ConfigureAwait(false); + return; + } + + var fileOptions = FileOptions.SequentialScan; + + // use non-async filestream along with read due to https://github.com/dotnet/corefx/issues/6039 + if (Environment.OSVersion.Platform != PlatformID.Win32NT) + { + fileOptions |= FileOptions.Asynchronous; + } + + await using var inputStream = new FileStream(_path, FileMode.Open, FileAccess.Read, FileShare.ReadWrite, 4096, fileOptions); + const int emptyReadLimit = 100; + var eofCount = 0; + while (eofCount < emptyReadLimit) + { + var bytesRead = await _streamHelper.CopyToAsync(inputStream, outputStream, cancellationToken).ConfigureAwait(false); + + if (bytesRead == 0) + { + eofCount++; + await Task.Delay(100, cancellationToken).ConfigureAwait(false); + } + else + { + eofCount = 0; + } + } + } + } +} diff --git a/Jellyfin.Api/Helpers/RequestHelpers.cs b/Jellyfin.Api/Helpers/RequestHelpers.cs index 446ee716a..299c7d4aa 100644 --- a/Jellyfin.Api/Helpers/RequestHelpers.cs +++ b/Jellyfin.Api/Helpers/RequestHelpers.cs @@ -1,8 +1,11 @@ using System; +using System.Collections.Generic; using System.Linq; using Jellyfin.Data.Enums; using MediaBrowser.Controller.Net; using MediaBrowser.Controller.Session; +using MediaBrowser.Model.Entities; +using MediaBrowser.Model.Querying; using Microsoft.AspNetCore.Http; namespace Jellyfin.Api.Helpers @@ -13,13 +16,65 @@ namespace Jellyfin.Api.Helpers public static class RequestHelpers { /// <summary> + /// Get Order By. + /// </summary> + /// <param name="sortBy">Sort By. Comma delimited string.</param> + /// <param name="requestedSortOrder">Sort Order. Comma delimited string.</param> + /// <returns>Order By.</returns> + public static ValueTuple<string, SortOrder>[] GetOrderBy(string? sortBy, string? requestedSortOrder) + { + var val = sortBy; + + if (string.IsNullOrEmpty(val)) + { + return Array.Empty<ValueTuple<string, SortOrder>>(); + } + + var vals = val.Split(','); + if (string.IsNullOrWhiteSpace(requestedSortOrder)) + { + requestedSortOrder = "Ascending"; + } + + var sortOrders = requestedSortOrder.Split(','); + + var result = new ValueTuple<string, SortOrder>[vals.Length]; + + for (var i = 0; i < vals.Length; i++) + { + var sortOrderIndex = sortOrders.Length > i ? i : 0; + + var sortOrderValue = sortOrders.Length > sortOrderIndex ? sortOrders[sortOrderIndex] : null; + var sortOrder = string.Equals(sortOrderValue, "Descending", StringComparison.OrdinalIgnoreCase) + ? SortOrder.Descending + : SortOrder.Ascending; + + result[i] = new ValueTuple<string, SortOrder>(vals[i], sortOrder); + } + + return result; + } + + /// <summary> + /// Get parsed filters. + /// </summary> + /// <param name="filters">The filters.</param> + /// <returns>Item filters.</returns> + public static IEnumerable<ItemFilter> GetFilters(string? filters) + { + return string.IsNullOrEmpty(filters) + ? Array.Empty<ItemFilter>() + : filters.Split(',').Select(v => Enum.Parse<ItemFilter>(v, true)); + } + + /// <summary> /// Splits a string at a separating character into an array of substrings. /// </summary> /// <param name="value">The string to split.</param> /// <param name="separator">The char that separates the substrings.</param> /// <param name="removeEmpty">Option to remove empty substrings from the array.</param> /// <returns>An array of the substrings.</returns> - internal static string[] Split(string value, char separator, bool removeEmpty) + internal static string[] Split(string? value, char separator, bool removeEmpty) { if (string.IsNullOrWhiteSpace(value)) { @@ -91,5 +146,31 @@ namespace Jellyfin.Api.Helpers .Select(i => new Guid(i)) .ToArray(); } + + /// <summary> + /// Gets the item fields. + /// </summary> + /// <param name="fields">The fields string.</param> + /// <returns>IEnumerable{ItemFields}.</returns> + internal static ItemFields[] GetItemFields(string? fields) + { + if (string.IsNullOrEmpty(fields)) + { + return Array.Empty<ItemFields>(); + } + + return Split(fields, ',', true) + .Select(v => + { + if (Enum.TryParse(v, true, out ItemFields value)) + { + return (ItemFields?)value; + } + + return null; + }).Where(i => i.HasValue) + .Select(i => i!.Value) + .ToArray(); + } } } diff --git a/Jellyfin.Api/Helpers/SimilarItemsHelper.cs b/Jellyfin.Api/Helpers/SimilarItemsHelper.cs index 751e3c481..b922e76cf 100644 --- a/Jellyfin.Api/Helpers/SimilarItemsHelper.cs +++ b/Jellyfin.Api/Helpers/SimilarItemsHelper.cs @@ -4,7 +4,6 @@ using System.Linq; using MediaBrowser.Controller.Dto; using MediaBrowser.Controller.Entities; using MediaBrowser.Controller.Library; -using MediaBrowser.Controller.Persistence; using MediaBrowser.Model.Dto; using MediaBrowser.Model.Entities; using MediaBrowser.Model.Querying; @@ -21,14 +20,16 @@ namespace Jellyfin.Api.Helpers IUserManager userManager, ILibraryManager libraryManager, IDtoService dtoService, - Guid userId, + Guid? userId, string id, - string excludeArtistIds, + string? excludeArtistIds, int? limit, Type[] includeTypes, Func<BaseItem, List<PersonInfo>, List<PersonInfo>, BaseItem, int> getSimilarityScore) { - var user = !userId.Equals(Guid.Empty) ? userManager.GetUserById(userId) : null; + var user = userId.HasValue && !userId.Equals(Guid.Empty) + ? userManager.GetUserById(userId.Value) + : null; var item = string.IsNullOrEmpty(id) ? (!userId.Equals(Guid.Empty) ? libraryManager.GetUserRootFolder() : @@ -38,11 +39,10 @@ namespace Jellyfin.Api.Helpers { IncludeItemTypes = includeTypes.Select(i => i.Name).ToArray(), Recursive = true, - DtoOptions = dtoOptions + DtoOptions = dtoOptions, + ExcludeArtistIds = RequestHelpers.GetGuids(excludeArtistIds) }; - query.ExcludeArtistIds = RequestHelpers.GetGuids(excludeArtistIds); - var inputItems = libraryManager.GetItemList(query); var items = GetSimilaritems(item, libraryManager, inputItems, getSimilarityScore) diff --git a/Jellyfin.Api/Helpers/TranscodingJobHelper.cs b/Jellyfin.Api/Helpers/TranscodingJobHelper.cs new file mode 100644 index 000000000..34b371d3f --- /dev/null +++ b/Jellyfin.Api/Helpers/TranscodingJobHelper.cs @@ -0,0 +1,353 @@ +using System; +using System.Collections.Generic; +using System.IO; +using System.Linq; +using System.Threading; +using System.Threading.Tasks; +using Jellyfin.Api.Models.PlaybackDtos; +using MediaBrowser.Controller.Library; +using MediaBrowser.Controller.MediaEncoding; +using MediaBrowser.Model.IO; +using Microsoft.Extensions.Logging; + +namespace Jellyfin.Api.Helpers +{ + /// <summary> + /// Transcoding job helpers. + /// </summary> + public class TranscodingJobHelper + { + /// <summary> + /// The active transcoding jobs. + /// </summary> + private static readonly List<TranscodingJobDto> _activeTranscodingJobs = new List<TranscodingJobDto>(); + + /// <summary> + /// The transcoding locks. + /// </summary> + private static readonly Dictionary<string, SemaphoreSlim> _transcodingLocks = new Dictionary<string, SemaphoreSlim>(); + + private readonly ILogger<TranscodingJobHelper> _logger; + private readonly IMediaSourceManager _mediaSourceManager; + private readonly IFileSystem _fileSystem; + + /// <summary> + /// Initializes a new instance of the <see cref="TranscodingJobHelper"/> class. + /// </summary> + /// <param name="logger">Instance of the <see cref="ILogger{TranscodingJobHelpers}"/> interface.</param> + /// <param name="mediaSourceManager">Instance of the <see cref="IMediaSourceManager"/> interface.</param> + /// <param name="fileSystem">Instance of the <see cref="IFileSystem"/> interface.</param> + public TranscodingJobHelper( + ILogger<TranscodingJobHelper> logger, + IMediaSourceManager mediaSourceManager, + IFileSystem fileSystem) + { + _logger = logger; + _mediaSourceManager = mediaSourceManager; + _fileSystem = fileSystem; + } + + /// <summary> + /// Get transcoding job. + /// </summary> + /// <param name="playSessionId">Playback session id.</param> + /// <returns>The transcoding job.</returns> + public TranscodingJobDto GetTranscodingJob(string playSessionId) + { + lock (_activeTranscodingJobs) + { + return _activeTranscodingJobs.FirstOrDefault(j => string.Equals(j.PlaySessionId, playSessionId, StringComparison.OrdinalIgnoreCase)); + } + } + + /// <summary> + /// Ping transcoding job. + /// </summary> + /// <param name="playSessionId">Play session id.</param> + /// <param name="isUserPaused">Is user paused.</param> + /// <exception cref="ArgumentNullException">Play session id is null.</exception> + public void PingTranscodingJob(string playSessionId, bool? isUserPaused) + { + if (string.IsNullOrEmpty(playSessionId)) + { + throw new ArgumentNullException(nameof(playSessionId)); + } + + _logger.LogDebug("PingTranscodingJob PlaySessionId={0} isUsedPaused: {1}", playSessionId, isUserPaused); + + List<TranscodingJobDto> jobs; + + lock (_activeTranscodingJobs) + { + // This is really only needed for HLS. + // Progressive streams can stop on their own reliably + jobs = _activeTranscodingJobs.Where(j => string.Equals(playSessionId, j.PlaySessionId, StringComparison.OrdinalIgnoreCase)).ToList(); + } + + foreach (var job in jobs) + { + if (isUserPaused.HasValue) + { + _logger.LogDebug("Setting job.IsUserPaused to {0}. jobId: {1}", isUserPaused, job.Id); + job.IsUserPaused = isUserPaused.Value; + } + + PingTimer(job, true); + } + } + + private void PingTimer(TranscodingJobDto job, bool isProgressCheckIn) + { + if (job.HasExited) + { + job.StopKillTimer(); + return; + } + + var timerDuration = 10000; + + if (job.Type != TranscodingJobType.Progressive) + { + timerDuration = 60000; + } + + job.PingTimeout = timerDuration; + job.LastPingDate = DateTime.UtcNow; + + // Don't start the timer for playback checkins with progressive streaming + if (job.Type != TranscodingJobType.Progressive || !isProgressCheckIn) + { + job.StartKillTimer(OnTranscodeKillTimerStopped); + } + else + { + job.ChangeKillTimerIfStarted(); + } + } + + /// <summary> + /// Called when [transcode kill timer stopped]. + /// </summary> + /// <param name="state">The state.</param> + private async void OnTranscodeKillTimerStopped(object state) + { + var job = (TranscodingJobDto)state; + + if (!job.HasExited && job.Type != TranscodingJobType.Progressive) + { + var timeSinceLastPing = (DateTime.UtcNow - job.LastPingDate).TotalMilliseconds; + + if (timeSinceLastPing < job.PingTimeout) + { + job.StartKillTimer(OnTranscodeKillTimerStopped, job.PingTimeout); + return; + } + } + + _logger.LogInformation("Transcoding kill timer stopped for JobId {0} PlaySessionId {1}. Killing transcoding", job.Id, job.PlaySessionId); + + await KillTranscodingJob(job, true, path => true).ConfigureAwait(false); + } + + /// <summary> + /// Kills the single transcoding job. + /// </summary> + /// <param name="deviceId">The device id.</param> + /// <param name="playSessionId">The play session identifier.</param> + /// <param name="deleteFiles">The delete files.</param> + /// <returns>Task.</returns> + public Task KillTranscodingJobs(string deviceId, string playSessionId, Func<string, bool> deleteFiles) + { + return KillTranscodingJobs( + j => string.IsNullOrWhiteSpace(playSessionId) + ? string.Equals(deviceId, j.DeviceId, StringComparison.OrdinalIgnoreCase) + : string.Equals(playSessionId, j.PlaySessionId, StringComparison.OrdinalIgnoreCase), deleteFiles); + } + + /// <summary> + /// Kills the transcoding jobs. + /// </summary> + /// <param name="killJob">The kill job.</param> + /// <param name="deleteFiles">The delete files.</param> + /// <returns>Task.</returns> + private Task KillTranscodingJobs(Func<TranscodingJobDto, bool> killJob, Func<string, bool> deleteFiles) + { + var jobs = new List<TranscodingJobDto>(); + + lock (_activeTranscodingJobs) + { + // This is really only needed for HLS. + // Progressive streams can stop on their own reliably + jobs.AddRange(_activeTranscodingJobs.Where(killJob)); + } + + if (jobs.Count == 0) + { + return Task.CompletedTask; + } + + IEnumerable<Task> GetKillJobs() + { + foreach (var job in jobs) + { + yield return KillTranscodingJob(job, false, deleteFiles); + } + } + + return Task.WhenAll(GetKillJobs()); + } + + /// <summary> + /// Kills the transcoding job. + /// </summary> + /// <param name="job">The job.</param> + /// <param name="closeLiveStream">if set to <c>true</c> [close live stream].</param> + /// <param name="delete">The delete.</param> + private async Task KillTranscodingJob(TranscodingJobDto job, bool closeLiveStream, Func<string, bool> delete) + { + job.DisposeKillTimer(); + + _logger.LogDebug("KillTranscodingJob - JobId {0} PlaySessionId {1}. Killing transcoding", job.Id, job.PlaySessionId); + + lock (_activeTranscodingJobs) + { + _activeTranscodingJobs.Remove(job); + + if (!job.CancellationTokenSource!.IsCancellationRequested) + { + job.CancellationTokenSource.Cancel(); + } + } + + lock (_transcodingLocks) + { + _transcodingLocks.Remove(job.Path!); + } + + lock (job.ProcessLock!) + { + job.TranscodingThrottler?.Stop().GetAwaiter().GetResult(); + + var process = job.Process; + + var hasExited = job.HasExited; + + if (!hasExited) + { + try + { + _logger.LogInformation("Stopping ffmpeg process with q command for {Path}", job.Path); + + process!.StandardInput.WriteLine("q"); + + // Need to wait because killing is asynchronous + if (!process.WaitForExit(5000)) + { + _logger.LogInformation("Killing ffmpeg process for {Path}", job.Path); + process.Kill(); + } + } + catch (InvalidOperationException) + { + } + } + } + + if (delete(job.Path!)) + { + await DeletePartialStreamFiles(job.Path!, job.Type, 0, 1500).ConfigureAwait(false); + } + + if (closeLiveStream && !string.IsNullOrWhiteSpace(job.LiveStreamId)) + { + try + { + await _mediaSourceManager.CloseLiveStream(job.LiveStreamId).ConfigureAwait(false); + } + catch (Exception ex) + { + _logger.LogError(ex, "Error closing live stream for {Path}", job.Path); + } + } + } + + private async Task DeletePartialStreamFiles(string path, TranscodingJobType jobType, int retryCount, int delayMs) + { + if (retryCount >= 10) + { + return; + } + + _logger.LogInformation("Deleting partial stream file(s) {Path}", path); + + await Task.Delay(delayMs).ConfigureAwait(false); + + try + { + if (jobType == TranscodingJobType.Progressive) + { + DeleteProgressivePartialStreamFiles(path); + } + else + { + DeleteHlsPartialStreamFiles(path); + } + } + catch (IOException ex) + { + _logger.LogError(ex, "Error deleting partial stream file(s) {Path}", path); + + await DeletePartialStreamFiles(path, jobType, retryCount + 1, 500).ConfigureAwait(false); + } + catch (Exception ex) + { + _logger.LogError(ex, "Error deleting partial stream file(s) {Path}", path); + } + } + + /// <summary> + /// Deletes the progressive partial stream files. + /// </summary> + /// <param name="outputFilePath">The output file path.</param> + private void DeleteProgressivePartialStreamFiles(string outputFilePath) + { + if (File.Exists(outputFilePath)) + { + _fileSystem.DeleteFile(outputFilePath); + } + } + + /// <summary> + /// Deletes the HLS partial stream files. + /// </summary> + /// <param name="outputFilePath">The output file path.</param> + private void DeleteHlsPartialStreamFiles(string outputFilePath) + { + var directory = Path.GetDirectoryName(outputFilePath); + var name = Path.GetFileNameWithoutExtension(outputFilePath); + + var filesToDelete = _fileSystem.GetFilePaths(directory) + .Where(f => f.IndexOf(name, StringComparison.OrdinalIgnoreCase) != -1); + + List<Exception>? exs = null; + foreach (var file in filesToDelete) + { + try + { + _logger.LogDebug("Deleting HLS file {0}", file); + _fileSystem.DeleteFile(file); + } + catch (IOException ex) + { + (exs ??= new List<Exception>(4)).Add(ex); + _logger.LogError(ex, "Error deleting HLS file {Path}", file); + } + } + + if (exs != null) + { + throw new AggregateException("Error deleting HLS files", exs); + } + } + } +} |
