mirror of
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217 lines
6.7 KiB
C#
217 lines
6.7 KiB
C#
using MediaBrowser.Common.IO;
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using MediaBrowser.Controller.Entities;
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using MediaBrowser.Controller.Entities.Audio;
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using MediaBrowser.Controller.Entities.TV;
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using MediaBrowser.Controller.Playlists;
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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 MoreLinq;
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using System;
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using System.Collections.Generic;
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using System.Drawing;
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using System.Drawing.Drawing2D;
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using System.Drawing.Imaging;
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using System.IO;
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using System.Linq;
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using System.Threading.Tasks;
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namespace MediaBrowser.Server.Implementations.Playlists
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{
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public class PlaylistImageEnhancer : IImageEnhancer
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{
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private readonly IFileSystem _fileSystem;
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public PlaylistImageEnhancer(IFileSystem fileSystem)
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{
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_fileSystem = fileSystem;
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}
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public bool Supports(IHasImages item, ImageType imageType)
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{
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return imageType == ImageType.Primary && item is Playlist;
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}
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public MetadataProviderPriority Priority
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{
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get { return MetadataProviderPriority.First; }
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}
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private List<BaseItem> GetItemsWithImages(IHasImages item)
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{
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var playlist = (Playlist)item;
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var items = playlist.GetManageableItems()
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.Select(i =>
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{
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var subItem = i.Item2;
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var episode = subItem as Episode;
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if (episode != null)
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{
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var series = episode.Series;
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if (series != null && series.HasImage(ImageType.Primary))
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{
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return series;
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}
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}
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if (subItem.HasImage(ImageType.Primary))
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{
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return subItem;
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}
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var parent = subItem.Parent;
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if (parent != null && parent.HasImage(ImageType.Primary))
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{
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if (parent is MusicAlbum)
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{
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return parent;
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}
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}
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return null;
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})
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.Where(i => i != null)
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.DistinctBy(i => i.Id)
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.ToList();
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// Rotate the images no more than once per day
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var random = new Random(DateTime.Now.DayOfYear).Next();
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return items
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.OrderBy(i => random - items.IndexOf(i))
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.Take(4)
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.OrderBy(i => i.Name)
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.ToList();
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}
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private const string Version = "3";
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public string GetConfigurationCacheKey(List<BaseItem> items)
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{
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return Version + "_" + string.Join(",", items.Select(i => i.Id.ToString("N")).ToArray());
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}
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public string GetConfigurationCacheKey(IHasImages item, ImageType imageType)
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{
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var items = GetItemsWithImages(item);
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return GetConfigurationCacheKey(items);
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}
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private const int ImageSize = 800;
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public ImageSize GetEnhancedImageSize(IHasImages item, ImageType imageType, int imageIndex, ImageSize originalImageSize)
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{
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var items = GetItemsWithImages(item);
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if (items.Count == 0)
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{
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return originalImageSize;
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}
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return new ImageSize
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{
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Height = ImageSize,
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Width = ImageSize
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};
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}
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public async Task<Image> EnhanceImageAsync(IHasImages item, Image originalImage, ImageType imageType, int imageIndex)
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{
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var items = GetItemsWithImages(item);
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if (items.Count == 0)
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{
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return originalImage;
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}
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var img = await GetCollage(items).ConfigureAwait(false);
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using (originalImage)
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{
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return img;
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}
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}
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private Task<Image> GetCollage(List<BaseItem> items)
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{
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return GetCollage(items.Select(i => i.GetImagePath(ImageType.Primary)).ToList());
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}
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private async Task<Image> GetCollage(List<string> files)
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{
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if (files.Count < 4)
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{
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return await GetSingleImage(files).ConfigureAwait(false);
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}
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const int rows = 2;
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const int cols = 2;
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const int singleSize = ImageSize / 2;
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var index = 0;
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var img = new Bitmap(ImageSize, ImageSize, PixelFormat.Format32bppPArgb);
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using (var graphics = Graphics.FromImage(img))
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{
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graphics.CompositingQuality = CompositingQuality.HighQuality;
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graphics.SmoothingMode = SmoothingMode.HighQuality;
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graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
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graphics.PixelOffsetMode = PixelOffsetMode.HighQuality;
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graphics.CompositingMode = CompositingMode.SourceCopy;
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for (var row = 0; row < rows; row++)
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{
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for (var col = 0; col < cols; col++)
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{
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var x = col * singleSize;
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var y = row * singleSize;
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using (var fileStream = _fileSystem.GetFileStream(files[index], FileMode.Open, FileAccess.Read, FileShare.Read, true))
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{
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using (var memoryStream = new MemoryStream())
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{
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await fileStream.CopyToAsync(memoryStream).ConfigureAwait(false);
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memoryStream.Position = 0;
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using (var imgtemp = Image.FromStream(memoryStream, true, false))
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{
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graphics.DrawImage(imgtemp, x, y, singleSize, singleSize);
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}
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}
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}
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index++;
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}
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}
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}
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return img;
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}
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private Task<Image> GetSingleImage(List<string> files)
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{
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return GetImage(files[0]);
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}
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private async Task<Image> GetImage(string file)
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{
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using (var fileStream = _fileSystem.GetFileStream(file, FileMode.Open, FileAccess.Read, FileShare.Read, true))
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{
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var memoryStream = new MemoryStream();
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await fileStream.CopyToAsync(memoryStream).ConfigureAwait(false);
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memoryStream.Position = 0;
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return Image.FromStream(memoryStream, true, false);
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}
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}
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}
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}
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