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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 MediaBrowser.Model.Configuration;
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 IServerConfigurationManager _config;
private readonly ITrickplayManager _trickplayManager;
private readonly ILibraryManager _libraryManager;
/// <summary>
/// Initializes a new instance of the <see cref="TrickplayProvider"/> class.
/// </summary>
/// <param name="config">The configuration manager.</param>
/// <param name="trickplayManager">The trickplay manager.</param>
/// <param name="libraryManager">The library manager.</param>
public TrickplayProvider(
IServerConfigurationManager config,
ITrickplayManager trickplayManager,
ILibraryManager libraryManager)
{
_config = config;
_trickplayManager = trickplayManager;
_libraryManager = libraryManager;
}
/// <inheritdoc />
public string Name => "Trickplay Provider";
/// <inheritdoc />
public int Order => 100;
/// <inheritdoc />
public bool HasChanged(BaseItem item, IDirectoryService directoryService)
{
if (item.IsFileProtocol)
{
var file = directoryService.GetFile(item.Path);
if (file is not null && item.HasChanged(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 video, MetadataRefreshOptions options, CancellationToken cancellationToken)
{
var libraryOptions = _libraryManager.GetLibraryOptions(video);
bool? enableDuringScan = libraryOptions?.ExtractTrickplayImagesDuringLibraryScan;
bool replace = options.RegenerateTrickplay && options.MetadataRefreshMode > MetadataRefreshMode.Default;
if (libraryOptions is null || !enableDuringScan.GetValueOrDefault(false))
{
return ItemUpdateType.None;
}
if (_config.Configuration.TrickplayOptions.ScanBehavior == TrickplayScanBehavior.Blocking)
{
await _trickplayManager.RefreshTrickplayDataAsync(video, replace, libraryOptions, cancellationToken).ConfigureAwait(false);
}
else
{
_ = _trickplayManager.RefreshTrickplayDataAsync(video, replace, libraryOptions, cancellationToken).ConfigureAwait(false);
}
// The core doesn't need to trigger any save operations over this
return ItemUpdateType.None;
}
}
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