nicknsy
2 years ago
committed by
Nick
parent
a1eb2f6ea8
commit
ca7d1a1300
@ -0,0 +1,54 @@
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using System;
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using System.Collections.Generic;
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using System.Threading;
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using System.Threading.Tasks;
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using MediaBrowser.Controller.Entities;
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using MediaBrowser.Model.Entities;
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namespace MediaBrowser.Controller.Trickplay
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{
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/// <summary>
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/// Interface ITrickplayManager.
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/// </summary>
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public interface ITrickplayManager
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{
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/// <summary>
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/// Generate or replace trickplay data.
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/// </summary>
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/// <param name="video">The video.</param>
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/// <param name="replace">Whether or not existing data should be replaced.</param>
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/// <param name="cancellationToken">CancellationToken to use for operation.</param>
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/// <returns>Task.</returns>
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Task RefreshTrickplayData(Video video, bool replace, CancellationToken cancellationToken);
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/// <summary>
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/// Get available trickplay resolutions and corresponding info.
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/// </summary>
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/// <param name="itemId">The item.</param>
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/// <returns>Map of width resolutions to trickplay tiles info.</returns>
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Dictionary<int, TrickplayTilesInfo> GetTilesResolutions(Guid itemId);
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/// <summary>
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/// Saves trickplay tiles info.
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/// </summary>
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/// <param name="itemId">The item.</param>
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/// <param name="tilesInfo">The trickplay tiles info.</param>
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void SaveTilesInfo(Guid itemId, TrickplayTilesInfo tilesInfo);
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/// <summary>
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/// Gets the trickplay manifest.
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/// </summary>
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/// <param name="item">The item.</param>
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/// <returns>A map of media source id to a map of tile width to tile info.</returns>
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Dictionary<Guid, Dictionary<int, TrickplayTilesInfo>> GetTrickplayManifest(BaseItem item);
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/// <summary>
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/// Gets the path to a trickplay tiles image.
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/// </summary>
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/// <param name="item">The item.</param>
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/// <param name="width">The width of a single tile.</param>
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/// <param name="index">The tile grid's index.</param>
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/// <returns>The absolute path.</returns>
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string GetTrickplayTilePath(BaseItem item, int width, int index);
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}
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}
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@ -0,0 +1,50 @@
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namespace MediaBrowser.Model.Entities
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{
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/// <summary>
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/// Class TrickplayTilesInfo.
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/// </summary>
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public class TrickplayTilesInfo
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{
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/// <summary>
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/// Gets or sets width of an individual tile.
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/// </summary>
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/// <value>The width.</value>
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public int Width { get; set; }
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/// <summary>
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/// Gets or sets height of an individual tile.
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/// </summary>
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/// <value>The height.</value>
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public int Height { get; set; }
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/// <summary>
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/// Gets or sets amount of tiles per row.
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/// </summary>
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/// <value>The tile grid's width.</value>
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public int TileWidth { get; set; }
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/// <summary>
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/// Gets or sets amount of tiles per column.
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/// </summary>
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/// <value>The tile grid's height.</value>
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public int TileHeight { get; set; }
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/// <summary>
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/// Gets or sets total amount of non-black tiles.
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/// </summary>
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/// <value>The tile count.</value>
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public int TileCount { get; set; }
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/// <summary>
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/// Gets or sets interval in milliseconds between each trickplay tile.
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/// </summary>
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/// <value>The interval.</value>
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public int Interval { get; set; }
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/// <summary>
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/// Gets or sets peak bandwith usage in bits per second.
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/// </summary>
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/// <value>The bandwidth.</value>
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public int Bandwidth { get; set; }
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}
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}
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@ -0,0 +1,116 @@
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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 MediaBrowser.Controller.Configuration;
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using MediaBrowser.Controller.Entities;
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using MediaBrowser.Controller.Library;
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using MediaBrowser.Controller.Trickplay;
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using MediaBrowser.Model.Entities;
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using MediaBrowser.Model.Globalization;
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using MediaBrowser.Model.Tasks;
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using Microsoft.Extensions.Logging;
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using Microsoft.Extensions.Options;
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namespace MediaBrowser.Providers.Trickplay
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{
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/// <summary>
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/// Class TrickplayImagesTask.
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/// </summary>
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public class TrickplayImagesTask : IScheduledTask
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{
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private readonly ILogger<TrickplayImagesTask> _logger;
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private readonly ILibraryManager _libraryManager;
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private readonly ILocalizationManager _localization;
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private readonly IServerConfigurationManager _configurationManager;
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private readonly ITrickplayManager _trickplayManager;
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/// <summary>
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/// Initializes a new instance of the <see cref="TrickplayImagesTask"/> class.
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/// </summary>
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/// <param name="logger">The logger.</param>
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/// <param name="libraryManager">The library manager.</param>
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/// <param name="localization">The localization manager.</param>
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/// <param name="configurationManager">The configuration manager.</param>
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/// <param name="trickplayManager">The trickplay manager.</param>
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public TrickplayImagesTask(
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ILogger<TrickplayImagesTask> logger,
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ILibraryManager libraryManager,
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ILocalizationManager localization,
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IServerConfigurationManager configurationManager,
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ITrickplayManager trickplayManager)
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{
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_libraryManager = libraryManager;
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_logger = logger;
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_localization = localization;
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_configurationManager = configurationManager;
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_trickplayManager = trickplayManager;
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}
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/// <inheritdoc />
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public string Name => _localization.GetLocalizedString("TaskRefreshTrickplayImages");
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/// <inheritdoc />
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public string Description => _localization.GetLocalizedString("TaskRefreshTrickplayImagesDescription");
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/// <inheritdoc />
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public string Key => "RefreshTrickplayImages";
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/// <inheritdoc />
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public string Category => _localization.GetLocalizedString("TasksLibraryCategory");
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/// <inheritdoc />
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public IEnumerable<TaskTriggerInfo> GetDefaultTriggers()
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{
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return new[]
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{
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new TaskTriggerInfo
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{
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Type = TaskTriggerInfo.TriggerDaily,
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TimeOfDayTicks = TimeSpan.FromHours(3).Ticks,
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MaxRuntimeTicks = TimeSpan.FromHours(5).Ticks
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}
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};
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}
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/// <inheritdoc />
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public async Task ExecuteAsync(IProgress<double> progress, CancellationToken cancellationToken)
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{
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// TODO: libraryoptions dont run on libraries with trickplay disabled
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var items = _libraryManager.GetItemList(new InternalItemsQuery
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{
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MediaTypes = new[] { MediaType.Video },
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IsVirtualItem = false,
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IsFolder = false,
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Recursive = false
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}).OfType<Video>().ToList();
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var numComplete = 0;
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foreach (var item in items)
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{
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try
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{
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cancellationToken.ThrowIfCancellationRequested();
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await _trickplayManager.RefreshTrickplayData(item, false, cancellationToken).ConfigureAwait(false);
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}
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catch (OperationCanceledException)
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{
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break;
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}
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catch (Exception ex)
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{
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_logger.LogError("Error creating trickplay files for {ItemName}: {Msg}", item.Name, ex);
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}
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numComplete++;
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double percent = numComplete;
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percent /= items.Count;
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percent *= 100;
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progress.Report(percent);
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}
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}
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}
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}
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@ -0,0 +1,363 @@
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using System;
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using System.Collections.Generic;
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using System.Globalization;
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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 MediaBrowser.Controller.Entities;
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using MediaBrowser.Controller.MediaEncoding;
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using MediaBrowser.Controller.Persistence;
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using MediaBrowser.Controller.Trickplay;
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using MediaBrowser.Model.Dto;
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using MediaBrowser.Model.Entities;
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using MediaBrowser.Model.IO;
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using Microsoft.Extensions.Logging;
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using SkiaSharp;
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namespace MediaBrowser.Providers.Trickplay
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{
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/// <summary>
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/// ITrickplayManager implementation.
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/// </summary>
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public class TrickplayManager : ITrickplayManager
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{
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private readonly ILogger<TrickplayManager> _logger;
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private readonly IItemRepository _itemRepo;
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private readonly IMediaEncoder _mediaEncoder;
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private readonly IFileSystem _fileSystem;
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private readonly EncodingHelper _encodingHelper;
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private static readonly SemaphoreSlim _resourcePool = new(1, 1);
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/// <summary>
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/// Initializes a new instance of the <see cref="TrickplayManager"/> class.
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/// </summary>
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/// <param name="logger">The logger.</param>
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/// <param name="itemRepo">The item repository.</param>
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/// <param name="mediaEncoder">The media encoder.</param>
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/// <param name="fileSystem">The file systen.</param>
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/// <param name="encodingHelper">The encoding helper.</param>
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public TrickplayManager(
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ILogger<TrickplayManager> logger,
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IItemRepository itemRepo,
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IMediaEncoder mediaEncoder,
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IFileSystem fileSystem,
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EncodingHelper encodingHelper)
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{
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_logger = logger;
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_itemRepo = itemRepo;
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_mediaEncoder = mediaEncoder;
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_fileSystem = fileSystem;
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_encodingHelper = encodingHelper;
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}
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/// <inheritdoc />
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public async Task RefreshTrickplayData(Video video, bool replace, CancellationToken cancellationToken)
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{
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_logger.LogDebug("Trickplay refresh for {ItemId} (replace existing: {Replace})", video.Id, replace);
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foreach (var width in new int[] { 320 } /*todo conf*/)
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{
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cancellationToken.ThrowIfCancellationRequested();
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await RefreshTrickplayData(video, replace, width, 10000/*todo conf*/, 10/*todo conf*/, 10/*todo conf*/, true/*todo conf*/, true/*todo conf*/, cancellationToken).ConfigureAwait(false);
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}
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}
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private async Task RefreshTrickplayData(Video video, bool replace, int width, int interval, int tileWidth, int tileHeight, bool doHwAccel, bool doHwEncode, CancellationToken cancellationToken)
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{
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if (!CanGenerateTrickplay(video))
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{
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return;
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}
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var imgTempDir = string.Empty;
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var outputDir = GetTrickplayDirectory(video, width);
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try
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{
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await _resourcePool.WaitAsync(cancellationToken).ConfigureAwait(false);
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if (!replace && Directory.Exists(outputDir))
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{
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_logger.LogDebug("Found existing trickplay files for {ItemId}. Exiting.", video.Id);
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return;
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}
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// Extract images
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// Note: Media sources under parent items exist as their own video/item as well. Only use this video stream for trickplay.
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var mediaSource = video.GetMediaSources(false).Find(source => Guid.Parse(source.Id).Equals(video.Id));
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if (mediaSource is null)
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{
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_logger.LogDebug("Found no matching media source for item {ItemId}", video.Id);
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return;
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}
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var mediaPath = mediaSource.Path;
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var mediaStream = mediaSource.VideoStream;
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var container = mediaSource.Container;
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_logger.LogInformation("Creating trickplay files at {Width} width, for {Path} [ID: {ItemId}]", width, mediaPath, video.Id);
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imgTempDir = await _mediaEncoder.ExtractVideoImagesOnIntervalAccelerated(
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mediaPath,
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container,
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mediaSource,
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mediaStream,
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TimeSpan.FromMilliseconds(interval),
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width,
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doHwAccel,
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doHwEncode,
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_encodingHelper,
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cancellationToken).ConfigureAwait(false);
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if (string.IsNullOrEmpty(imgTempDir) || !Directory.Exists(imgTempDir))
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{
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throw new InvalidOperationException("Null or invalid directory from media encoder.");
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}
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var images = _fileSystem.GetFiles(imgTempDir, new string[] { ".jpg" }, false, false)
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.Where(img => string.Equals(img.Extension, ".jpg", StringComparison.Ordinal))
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.OrderBy(i => i.FullName)
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.ToList();
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// Create tiles
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var tilesTempDir = Path.Combine(imgTempDir, Guid.NewGuid().ToString("N"));
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var tilesInfo = CreateTiles(images, width, interval, tileWidth, tileHeight, tilesTempDir, outputDir);
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// Save tiles info
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try
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{
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if (tilesInfo is not null)
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{
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SaveTilesInfo(video.Id, tilesInfo);
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_logger.LogInformation("Finished creation of trickplay files for {0}", mediaPath);
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}
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else
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{
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throw new InvalidOperationException("Null trickplay tiles info from CreateTiles.");
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}
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}
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catch (Exception ex)
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{
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_logger.LogError(ex, "Error while saving trickplay tiles info.");
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// Make sure no files stay in metadata folders on failure
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// if tiles info wasn't saved.
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Directory.Delete(outputDir, true);
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}
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}
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catch (Exception ex)
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{
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_logger.LogError(ex, "Error creating trickplay images.");
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}
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finally
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{
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_resourcePool.Release();
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if (!string.IsNullOrEmpty(imgTempDir))
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{
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Directory.Delete(imgTempDir, true);
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}
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}
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}
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private TrickplayTilesInfo CreateTiles(List<FileSystemMetadata> images, int width, int interval, int tileWidth, int tileHeight, string workDir, string outputDir)
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{
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if (images.Count == 0)
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{
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throw new InvalidOperationException("Can't create trickplay from 0 images.");
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}
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Directory.CreateDirectory(workDir);
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var tilesInfo = new TrickplayTilesInfo
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{
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Width = width,
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Interval = interval,
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TileWidth = tileWidth,
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TileHeight = tileHeight,
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TileCount = (int)Math.Ceiling((decimal)images.Count / tileWidth / tileHeight),
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Bandwidth = 0
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};
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var firstImg = SKBitmap.Decode(images[0].FullName);
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if (firstImg == null)
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{
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throw new InvalidDataException("Could not decode image data.");
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}
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tilesInfo.Height = firstImg.Height;
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if (tilesInfo.Width != firstImg.Width)
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{
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throw new InvalidOperationException("Image width does not match config width.");
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}
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/*
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* Generate grids of trickplay image tiles
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*/
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var imgNo = 0;
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var i = 0;
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while (i < images.Count)
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{
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var tileGrid = new SKBitmap(tilesInfo.Width * tilesInfo.TileWidth, tilesInfo.Height * tilesInfo.TileHeight);
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var tileCount = 0;
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using (var canvas = new SKCanvas(tileGrid))
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{
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for (var y = 0; y < tilesInfo.TileHeight; y++)
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{
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for (var x = 0; x < tilesInfo.TileWidth; x++)
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{
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if (i >= images.Count)
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{
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break;
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}
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var img = SKBitmap.Decode(images[i].FullName);
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if (img == null)
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{
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throw new InvalidDataException("Could not decode image data.");
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}
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if (tilesInfo.Width != img.Width)
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{
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throw new InvalidOperationException("Image width does not match config width.");
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}
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if (tilesInfo.Height != img.Height)
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{
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throw new InvalidOperationException("Image height does not match first image height.");
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}
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canvas.DrawBitmap(img, x * tilesInfo.Width, y * tilesInfo.Height);
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tileCount++;
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i++;
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}
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}
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}
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// Output each tile grid to singular file
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var tileGridPath = Path.Combine(workDir, $"{imgNo}.jpg");
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using (var stream = File.OpenWrite(tileGridPath))
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{
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tileGrid.Encode(stream, SKEncodedImageFormat.Jpeg, 100/* todo _config.JpegQuality*/);
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}
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var bitrate = (int)Math.Ceiling((decimal)new FileInfo(tileGridPath).Length * 8 / tilesInfo.TileWidth / tilesInfo.TileHeight / (tilesInfo.Interval / 1000));
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tilesInfo.Bandwidth = Math.Max(tilesInfo.Bandwidth, bitrate);
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imgNo++;
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}
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/*
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* Move trickplay tiles to output directory
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*/
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Directory.CreateDirectory(outputDir);
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// Replace existing tile grids if they already exist
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if (Directory.Exists(outputDir))
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{
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Directory.Delete(outputDir, true);
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}
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MoveDirectory(workDir, outputDir);
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return tilesInfo;
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}
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private bool CanGenerateTrickplay(Video video)
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{
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var videoType = video.VideoType;
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if (videoType == VideoType.Iso || videoType == VideoType.Dvd || videoType == VideoType.BluRay)
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{
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return false;
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}
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if (video.IsPlaceHolder)
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{
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return false;
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}
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/* TODO config options
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var libraryOptions = _libraryManager.GetLibraryOptions(video);
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if (libraryOptions is not null)
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{
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if (!libraryOptions.EnableChapterImageExtraction)
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{
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return false;
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}
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}
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else
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||||
{
|
||||
return false;
|
||||
}
|
||||
*/
|
||||
|
||||
// TODO: media length is shorter than configured interval
|
||||
|
||||
if (video.IsShortcut)
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
if (!video.IsCompleteMedia)
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
// Can't extract images if there are no video streams
|
||||
return video.GetMediaStreams().Count > 0;
|
||||
}
|
||||
|
||||
/// <inheritdoc />
|
||||
public Dictionary<int, TrickplayTilesInfo> GetTilesResolutions(Guid itemId)
|
||||
{
|
||||
return _itemRepo.GetTilesResolutions(itemId);
|
||||
}
|
||||
|
||||
/// <inheritdoc />
|
||||
public void SaveTilesInfo(Guid itemId, TrickplayTilesInfo tilesInfo)
|
||||
{
|
||||
_itemRepo.SaveTilesInfo(itemId, tilesInfo);
|
||||
}
|
||||
|
||||
/// <inheritdoc />
|
||||
public Dictionary<Guid, Dictionary<int, TrickplayTilesInfo>> GetTrickplayManifest(BaseItem item)
|
||||
{
|
||||
return _itemRepo.GetTrickplayManifest(item);
|
||||
}
|
||||
|
||||
/// <inheritdoc />
|
||||
public string GetTrickplayTilePath(BaseItem item, int width, int index)
|
||||
{
|
||||
return Path.Combine(GetTrickplayDirectory(item, width), index + ".jpg");
|
||||
}
|
||||
|
||||
private string GetTrickplayDirectory(BaseItem item, int? width = null)
|
||||
{
|
||||
var path = Path.Combine(item.GetInternalMetadataPath(), "trickplay");
|
||||
|
||||
return width.HasValue ? Path.Combine(path, width.Value.ToString(CultureInfo.InvariantCulture)) : path;
|
||||
}
|
||||
|
||||
private void MoveDirectory(string source, string destination)
|
||||
{
|
||||
try
|
||||
{
|
||||
Directory.Move(source, destination);
|
||||
}
|
||||
catch (System.IO.IOException)
|
||||
{
|
||||
// Cross device move requires a copy
|
||||
Directory.CreateDirectory(destination);
|
||||
foreach (string file in Directory.GetFiles(source))
|
||||
{
|
||||
File.Copy(file, Path.Join(destination, Path.GetFileName(file)), true);
|
||||
}
|
||||
|
||||
Directory.Delete(source, true);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,109 @@
|
||||
using System.Threading;
|
||||
using System.Threading.Tasks;
|
||||
using MediaBrowser.Controller.Configuration;
|
||||
using MediaBrowser.Controller.Entities;
|
||||
using MediaBrowser.Controller.Entities.Movies;
|
||||
using MediaBrowser.Controller.Entities.TV;
|
||||
using MediaBrowser.Controller.Library;
|
||||
using MediaBrowser.Controller.Providers;
|
||||
using MediaBrowser.Controller.Trickplay;
|
||||
using Microsoft.Extensions.Logging;
|
||||
|
||||
namespace MediaBrowser.Providers.Trickplay
|
||||
{
|
||||
/// <summary>
|
||||
/// Class TrickplayProvider. Provides images and metadata for trickplay
|
||||
/// scrubbing previews.
|
||||
/// </summary>
|
||||
public class TrickplayProvider : ICustomMetadataProvider<Episode>,
|
||||
ICustomMetadataProvider<MusicVideo>,
|
||||
ICustomMetadataProvider<Movie>,
|
||||
ICustomMetadataProvider<Trailer>,
|
||||
ICustomMetadataProvider<Video>,
|
||||
IHasItemChangeMonitor,
|
||||
IHasOrder,
|
||||
IForcedProvider
|
||||
{
|
||||
private readonly ILogger<TrickplayProvider> _logger;
|
||||
private readonly IServerConfigurationManager _configurationManager;
|
||||
private readonly ITrickplayManager _trickplayManager;
|
||||
|
||||
/// <summary>
|
||||
/// Initializes a new instance of the <see cref="TrickplayProvider"/> class.
|
||||
/// </summary>
|
||||
/// <param name="logger">The logger.</param>
|
||||
/// <param name="configurationManager">The configuration manager.</param>
|
||||
/// <param name="trickplayManager">The trickplay manager.</param>
|
||||
public TrickplayProvider(
|
||||
ILogger<TrickplayProvider> logger,
|
||||
IServerConfigurationManager configurationManager,
|
||||
ITrickplayManager trickplayManager)
|
||||
{
|
||||
_logger = logger;
|
||||
_configurationManager = configurationManager;
|
||||
_trickplayManager = trickplayManager;
|
||||
}
|
||||
|
||||
/// <inheritdoc />
|
||||
public string Name => "Trickplay Preview";
|
||||
|
||||
/// <inheritdoc />
|
||||
public int Order => 1000;
|
||||
|
||||
/// <inheritdoc />
|
||||
public bool HasChanged(BaseItem item, IDirectoryService directoryService)
|
||||
{
|
||||
if (item.IsFileProtocol)
|
||||
{
|
||||
var file = directoryService.GetFile(item.Path);
|
||||
if (file is not null && item.DateModified != file.LastWriteTimeUtc)
|
||||
{
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
/// <inheritdoc />
|
||||
public Task<ItemUpdateType> FetchAsync(Episode item, MetadataRefreshOptions options, CancellationToken cancellationToken)
|
||||
{
|
||||
return FetchInternal(item, options, cancellationToken);
|
||||
}
|
||||
|
||||
/// <inheritdoc />
|
||||
public Task<ItemUpdateType> FetchAsync(MusicVideo item, MetadataRefreshOptions options, CancellationToken cancellationToken)
|
||||
{
|
||||
return FetchInternal(item, options, cancellationToken);
|
||||
}
|
||||
|
||||
/// <inheritdoc />
|
||||
public Task<ItemUpdateType> FetchAsync(Movie item, MetadataRefreshOptions options, CancellationToken cancellationToken)
|
||||
{
|
||||
return FetchInternal(item, options, cancellationToken);
|
||||
}
|
||||
|
||||
/// <inheritdoc />
|
||||
public Task<ItemUpdateType> FetchAsync(Trailer item, MetadataRefreshOptions options, CancellationToken cancellationToken)
|
||||
{
|
||||
return FetchInternal(item, options, cancellationToken);
|
||||
}
|
||||
|
||||
/// <inheritdoc />
|
||||
public Task<ItemUpdateType> FetchAsync(Video item, MetadataRefreshOptions options, CancellationToken cancellationToken)
|
||||
{
|
||||
return FetchInternal(item, options, cancellationToken);
|
||||
}
|
||||
|
||||
private async Task<ItemUpdateType> FetchInternal(Video item, MetadataRefreshOptions options, CancellationToken cancellationToken)
|
||||
{
|
||||
// TODO: will "search for missing metadata" always trigger this?
|
||||
// TODO: implement all config options -->
|
||||
// TODO: this is always blocking for metadata collection, make non-blocking option
|
||||
await _trickplayManager.RefreshTrickplayData(item, options.ReplaceAllImages, cancellationToken).ConfigureAwait(false);
|
||||
|
||||
// The core doesn't need to trigger any save operations over this
|
||||
return ItemUpdateType.None;
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in new issue