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using MediaBrowser.Controller.Configuration;
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using MediaBrowser.Controller.Drawing;
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using MediaBrowser.Controller.Entities;
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using MediaBrowser.Controller.MediaInfo;
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using MediaBrowser.Controller.Providers;
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using MediaBrowser.Model.Entities;
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using MediaBrowser.Model.IO;
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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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namespace MediaBrowser.Providers.MediaInfo
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{
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public class VideoImageProvider : IDynamicImageProvider, IHasChangeMonitor, IHasOrder
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{
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private readonly IIsoManager _isoManager;
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private readonly IMediaEncoder _mediaEncoder;
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private readonly IServerConfigurationManager _config;
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public VideoImageProvider(IIsoManager isoManager, IMediaEncoder mediaEncoder, IServerConfigurationManager config)
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{
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_isoManager = isoManager;
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_mediaEncoder = mediaEncoder;
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_config = config;
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}
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/// <summary>
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/// The null mount task result
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/// </summary>
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protected readonly Task<IIsoMount> NullMountTaskResult = Task.FromResult<IIsoMount>(null);
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/// <summary>
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/// Mounts the iso if needed.
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/// </summary>
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/// <param name="item">The item.</param>
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/// <param name="cancellationToken">The cancellation token.</param>
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/// <returns>Task{IIsoMount}.</returns>
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protected Task<IIsoMount> MountIsoIfNeeded(Video item, CancellationToken cancellationToken)
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{
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if (item.VideoType == VideoType.Iso)
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{
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return _isoManager.Mount(item.Path, cancellationToken);
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}
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return NullMountTaskResult;
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}
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public IEnumerable<ImageType> GetSupportedImages(IHasImages item)
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{
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return new List<ImageType> { ImageType.Primary };
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}
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public Task<DynamicImageResponse> GetImage(IHasImages item, ImageType type, CancellationToken cancellationToken)
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{
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var video = (Video)item;
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// No support for this
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if (video.VideoType == VideoType.HdDvd)
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{
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return Task.FromResult(new DynamicImageResponse { HasImage = false });
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}
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// Can't extract from iso's if we weren't unable to determine iso type
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if (video.VideoType == VideoType.Iso && !video.IsoType.HasValue)
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{
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return Task.FromResult(new DynamicImageResponse { HasImage = false });
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}
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// Can't extract if we didn't find a video stream in the file
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if (!video.DefaultVideoStreamIndex.HasValue)
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{
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return Task.FromResult(new DynamicImageResponse { HasImage = false });
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}
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return GetVideoImage(video, cancellationToken);
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}
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public async Task<DynamicImageResponse> GetVideoImage(Video item, CancellationToken cancellationToken)
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{
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var isoMount = await MountIsoIfNeeded(item, cancellationToken).ConfigureAwait(false);
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try
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{
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// If we know the duration, grab it from 10% into the video. Otherwise just 10 seconds in.
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// Always use 10 seconds for dvd because our duration could be out of whack
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var imageOffset = item.VideoType != VideoType.Dvd && item.RunTimeTicks.HasValue &&
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item.RunTimeTicks.Value > 0
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? TimeSpan.FromTicks(Convert.ToInt64(item.RunTimeTicks.Value * .1))
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: TimeSpan.FromSeconds(10);
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InputType type;
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var inputPath = MediaEncoderHelpers.GetInputArgument(item.Path, item.LocationType == LocationType.Remote, item.VideoType, item.IsoType, isoMount, item.PlayableStreamFileNames, out type);
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var stream = await _mediaEncoder.ExtractImage(inputPath, type, false, item.Video3DFormat, imageOffset, cancellationToken).ConfigureAwait(false);
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return new DynamicImageResponse
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{
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Format = ImageFormat.Jpg,
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HasImage = true,
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Stream = stream
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};
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}
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finally
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{
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if (isoMount != null)
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{
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isoMount.Dispose();
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}
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}
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}
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public string Name
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{
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get { return "Embedded Image"; }
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}
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public bool Supports(IHasImages item)
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{
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if (!_config.Configuration.EnableVideoImageExtraction)
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{
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return false;
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}
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return item.LocationType == LocationType.FileSystem && item is Video;
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}
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public bool HasChanged(IHasMetadata item, DateTime date)
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{
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return item.DateModified > date;
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}
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public int Order
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{
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get
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{
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// Make sure this comes after internet image providers
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return 100;
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}
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}
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}
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}
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