jellyfin/MediaBrowser.Controller/ScheduledTasks/ChapterImagesTask.cs
LukePulverenti 8ce3e74e81 More DI
2013-02-24 16:53:54 -05:00

112 lines
3.4 KiB
C#

using MediaBrowser.Common.ScheduledTasks;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Model.Logging;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
namespace MediaBrowser.Controller.ScheduledTasks
{
/// <summary>
/// Class ChapterImagesTask
/// </summary>
class ChapterImagesTask : BaseScheduledTask<Kernel>
{
/// <summary>
/// Initializes a new instance of the <see cref="ChapterImagesTask" /> class.
/// </summary>
/// <param name="kernel">The kernel.</param>
/// <param name="logger"></param>
public ChapterImagesTask(Kernel kernel, ITaskManager taskManager, ILogger logger)
: base(kernel, taskManager, logger)
{
}
/// <summary>
/// Creates the triggers that define when the task will run
/// </summary>
/// <returns>IEnumerable{BaseTaskTrigger}.</returns>
public override IEnumerable<ITaskTrigger> GetDefaultTriggers()
{
return new ITaskTrigger[]
{
new DailyTrigger { TimeOfDay = TimeSpan.FromHours(4) }
};
}
/// <summary>
/// Returns the task to be executed
/// </summary>
/// <param name="cancellationToken">The cancellation token.</param>
/// <param name="progress">The progress.</param>
/// <returns>Task.</returns>
protected override Task ExecuteInternal(CancellationToken cancellationToken, IProgress<double> progress)
{
var videos = Kernel.RootFolder.RecursiveChildren.OfType<Video>().Where(v => v.Chapters != null).ToList();
var numComplete = 0;
var tasks = videos.Select(v => Task.Run(async () =>
{
try
{
await Kernel.FFMpegManager.PopulateChapterImages(v, cancellationToken, true, true);
}
catch (OperationCanceledException)
{
throw;
}
catch (Exception ex)
{
Logger.ErrorException("Error creating chapter images for {0}", ex, v.Name);
}
finally
{
lock (progress)
{
numComplete++;
double percent = numComplete;
percent /= videos.Count;
progress.Report(100 * percent);
}
}
}));
return Task.WhenAll(tasks);
}
/// <summary>
/// Gets the name of the task
/// </summary>
/// <value>The name.</value>
public override string Name
{
get { return "Create video chapter thumbnails"; }
}
/// <summary>
/// Gets the description.
/// </summary>
/// <value>The description.</value>
public override string Description
{
get { return "Creates thumbnails for videos that have chapters."; }
}
/// <summary>
/// Gets the category.
/// </summary>
/// <value>The category.</value>
public override string Category
{
get
{
return "Library";
}
}
}
}