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168 lines
6.2 KiB
168 lines
6.2 KiB
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.MediaEncoding;
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using MediaBrowser.Controller.Providers;
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using MediaBrowser.Model.Drawing;
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using MediaBrowser.Model.Entities;
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using MediaBrowser.Model.IO;
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using MediaBrowser.Model.Logging;
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using MediaBrowser.Model.MediaInfo;
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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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namespace MediaBrowser.Providers.MediaInfo
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{
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public class VideoImageProvider : IDynamicImageProvider, IHasItemChangeMonitor, IHasOrder
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{
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private readonly IMediaEncoder _mediaEncoder;
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private readonly ILogger _logger;
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private readonly IFileSystem _fileSystem;
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public VideoImageProvider(IMediaEncoder mediaEncoder, ILogger logger, IFileSystem fileSystem)
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{
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_mediaEncoder = mediaEncoder;
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_logger = logger;
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_fileSystem = fileSystem;
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}
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public IEnumerable<ImageType> GetSupportedImages(IHasMetadata 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(IHasMetadata 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.IsPlaceHolder)
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{
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return Task.FromResult(new DynamicImageResponse { HasImage = false });
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}
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// No support for this
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if (video.VideoType == VideoType.Iso || video.VideoType == VideoType.Dvd || video.VideoType == VideoType.BluRay)
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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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_logger.Info("Skipping image extraction due to missing DefaultVideoStreamIndex for {0}.", video.Path ?? string.Empty);
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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 protocol = item.LocationType == LocationType.Remote
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? MediaProtocol.Http
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: MediaProtocol.File;
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var inputPath = MediaEncoderHelpers.GetInputArgument(_fileSystem, item.Path, protocol, null, item.GetPlayableStreamFileNames());
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var mediaStreams =
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item.GetMediaStreams();
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var imageStreams =
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mediaStreams
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.Where(i => i.Type == MediaStreamType.EmbeddedImage)
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.ToList();
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var imageStream = imageStreams.FirstOrDefault(i => (i.Comment ?? string.Empty).IndexOf("front", StringComparison.OrdinalIgnoreCase) != -1) ??
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imageStreams.FirstOrDefault(i => (i.Comment ?? string.Empty).IndexOf("cover", StringComparison.OrdinalIgnoreCase) != -1) ??
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imageStreams.FirstOrDefault();
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string extractedImagePath;
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if (imageStream != null)
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{
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// Instead of using the raw stream index, we need to use nth video/embedded image stream
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var videoIndex = -1;
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foreach (var mediaStream in mediaStreams)
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{
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if (mediaStream.Type == MediaStreamType.Video ||
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mediaStream.Type == MediaStreamType.EmbeddedImage)
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{
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videoIndex++;
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}
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if (mediaStream == imageStream)
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{
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break;
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}
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}
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extractedImagePath = await _mediaEncoder.ExtractVideoImage(inputPath, item.Container, protocol, imageStream, videoIndex, cancellationToken).ConfigureAwait(false);
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}
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else
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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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var videoStream = mediaStreams.FirstOrDefault(i => i.Type == MediaStreamType.Video);
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extractedImagePath = await _mediaEncoder.ExtractVideoImage(inputPath, item.Container, protocol, videoStream, item.Video3DFormat, imageOffset, cancellationToken).ConfigureAwait(false);
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}
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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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Path = extractedImagePath,
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Protocol = MediaProtocol.File
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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 "Screen Grabber"; }
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}
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public bool Supports(IHasMetadata item)
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{
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var video = item as Video;
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if (item.LocationType == LocationType.FileSystem && video != null && !video.IsPlaceHolder && !video.IsShortcut)
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{
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return true;
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}
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return false;
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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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public bool HasChanged(IHasMetadata item, IDirectoryService directoryService)
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{
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if (item.EnableRefreshOnDateModifiedChange && !string.IsNullOrWhiteSpace(item.Path) && item.LocationType == LocationType.FileSystem)
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{
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var file = directoryService.GetFile(item.Path);
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if (file != null && file.LastWriteTimeUtc != item.DateModified)
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{
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return true;
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}
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}
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return false;
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}
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}
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}
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