636 lines
26 KiB
C#
636 lines
26 KiB
C#
using MediaBrowser.Common.Extensions;
|
|
using MediaBrowser.Common.IO;
|
|
using MediaBrowser.Controller.Entities;
|
|
using MediaBrowser.Controller.Entities.TV;
|
|
using MediaBrowser.Controller.Providers;
|
|
using MediaBrowser.Model.Drawing;
|
|
using MediaBrowser.Model.Entities;
|
|
using MediaBrowser.Model.Logging;
|
|
using MediaBrowser.Model.Serialization;
|
|
using System;
|
|
using System.Collections.Concurrent;
|
|
using System.Collections.Generic;
|
|
using System.Drawing;
|
|
using System.Drawing.Drawing2D;
|
|
using System.Drawing.Imaging;
|
|
using System.IO;
|
|
using System.Linq;
|
|
using System.Threading.Tasks;
|
|
|
|
namespace MediaBrowser.Controller.Drawing
|
|
{
|
|
/// <summary>
|
|
/// Class ImageManager
|
|
/// </summary>
|
|
public class ImageManager : IDisposable
|
|
{
|
|
/// <summary>
|
|
/// Gets the image size cache.
|
|
/// </summary>
|
|
/// <value>The image size cache.</value>
|
|
private FileSystemRepository ImageSizeCache { get; set; }
|
|
|
|
/// <summary>
|
|
/// Gets or sets the resized image cache.
|
|
/// </summary>
|
|
/// <value>The resized image cache.</value>
|
|
private FileSystemRepository ResizedImageCache { get; set; }
|
|
/// <summary>
|
|
/// Gets the cropped image cache.
|
|
/// </summary>
|
|
/// <value>The cropped image cache.</value>
|
|
private FileSystemRepository CroppedImageCache { get; set; }
|
|
|
|
/// <summary>
|
|
/// Gets the cropped image cache.
|
|
/// </summary>
|
|
/// <value>The cropped image cache.</value>
|
|
private FileSystemRepository EnhancedImageCache { get; set; }
|
|
|
|
/// <summary>
|
|
/// The cached imaged sizes
|
|
/// </summary>
|
|
private readonly ConcurrentDictionary<string, Task<ImageSize>> _cachedImagedSizes = new ConcurrentDictionary<string, Task<ImageSize>>();
|
|
|
|
/// <summary>
|
|
/// The _logger
|
|
/// </summary>
|
|
private readonly ILogger _logger;
|
|
|
|
/// <summary>
|
|
/// The _protobuf serializer
|
|
/// </summary>
|
|
private readonly IProtobufSerializer _protobufSerializer;
|
|
|
|
/// <summary>
|
|
/// The _kernel
|
|
/// </summary>
|
|
private readonly Kernel _kernel;
|
|
|
|
/// <summary>
|
|
/// Initializes a new instance of the <see cref="ImageManager" /> class.
|
|
/// </summary>
|
|
/// <param name="kernel">The kernel.</param>
|
|
/// <param name="protobufSerializer">The protobuf serializer.</param>
|
|
/// <param name="logger">The logger.</param>
|
|
public ImageManager(Kernel kernel, IProtobufSerializer protobufSerializer, ILogger logger)
|
|
{
|
|
_protobufSerializer = protobufSerializer;
|
|
_logger = logger;
|
|
_kernel = kernel;
|
|
|
|
ImageSizeCache = new FileSystemRepository(Path.Combine(_kernel.ApplicationPaths.ImageCachePath, "image-sizes"));
|
|
ResizedImageCache = new FileSystemRepository(Path.Combine(_kernel.ApplicationPaths.ImageCachePath, "resized-images"));
|
|
CroppedImageCache = new FileSystemRepository(Path.Combine(_kernel.ApplicationPaths.ImageCachePath, "cropped-images"));
|
|
EnhancedImageCache = new FileSystemRepository(Path.Combine(_kernel.ApplicationPaths.ImageCachePath, "enhanced-images"));
|
|
}
|
|
|
|
/// <summary>
|
|
/// Processes an image by resizing to target dimensions
|
|
/// </summary>
|
|
/// <param name="entity">The entity that owns the image</param>
|
|
/// <param name="imageType">The image type</param>
|
|
/// <param name="imageIndex">The image index (currently only used with backdrops)</param>
|
|
/// <param name="cropWhitespace">if set to <c>true</c> [crop whitespace].</param>
|
|
/// <param name="dateModified">The last date modified of the original image file</param>
|
|
/// <param name="toStream">The stream to save the new image to</param>
|
|
/// <param name="width">Use if a fixed width is required. Aspect ratio will be preserved.</param>
|
|
/// <param name="height">Use if a fixed height is required. Aspect ratio will be preserved.</param>
|
|
/// <param name="maxWidth">Use if a max width is required. Aspect ratio will be preserved.</param>
|
|
/// <param name="maxHeight">Use if a max height is required. Aspect ratio will be preserved.</param>
|
|
/// <param name="quality">Quality level, from 0-100. Currently only applies to JPG. The default value should suffice.</param>
|
|
/// <returns>Task.</returns>
|
|
/// <exception cref="System.ArgumentNullException">entity</exception>
|
|
public async Task ProcessImage(BaseItem entity, ImageType imageType, int imageIndex, bool cropWhitespace, DateTime dateModified, Stream toStream, int? width, int? height, int? maxWidth, int? maxHeight, int? quality)
|
|
{
|
|
if (entity == null)
|
|
{
|
|
throw new ArgumentNullException("entity");
|
|
}
|
|
|
|
if (toStream == null)
|
|
{
|
|
throw new ArgumentNullException("toStream");
|
|
}
|
|
|
|
var originalImagePath = GetImagePath(entity, imageType, imageIndex);
|
|
|
|
if (cropWhitespace)
|
|
{
|
|
try
|
|
{
|
|
originalImagePath = GetCroppedImage(originalImagePath, dateModified);
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
// We have to have a catch-all here because some of the .net image methods throw a plain old Exception
|
|
_logger.ErrorException("Error cropping image", ex);
|
|
}
|
|
}
|
|
|
|
try
|
|
{
|
|
// Enhance if we have enhancers
|
|
var ehnancedImagePath = await GetEnhancedImage(originalImagePath, dateModified, entity, imageType, imageIndex).ConfigureAwait(false);
|
|
|
|
// If the path changed update dateModified
|
|
if (!ehnancedImagePath.Equals(originalImagePath, StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
dateModified = File.GetLastWriteTimeUtc(ehnancedImagePath);
|
|
originalImagePath = ehnancedImagePath;
|
|
}
|
|
}
|
|
catch
|
|
{
|
|
_logger.Error("Error enhancing image");
|
|
}
|
|
|
|
var originalImageSize = await GetImageSize(originalImagePath, dateModified).ConfigureAwait(false);
|
|
|
|
// Determine the output size based on incoming parameters
|
|
var newSize = DrawingUtils.Resize(originalImageSize, width, height, maxWidth, maxHeight);
|
|
|
|
if (!quality.HasValue)
|
|
{
|
|
quality = 90;
|
|
}
|
|
|
|
var cacheFilePath = GetCacheFilePath(originalImagePath, newSize, quality.Value, dateModified);
|
|
|
|
// Grab the cache file if it already exists
|
|
try
|
|
{
|
|
using (var fileStream = new FileStream(cacheFilePath, FileMode.Open, FileAccess.Read, FileShare.Read, StreamDefaults.DefaultFileStreamBufferSize, FileOptions.Asynchronous))
|
|
{
|
|
await fileStream.CopyToAsync(toStream).ConfigureAwait(false);
|
|
}
|
|
return;
|
|
}
|
|
catch (FileNotFoundException)
|
|
{
|
|
// Cache file doesn't exist. No biggie.
|
|
}
|
|
|
|
using (var fileStream = File.OpenRead(originalImagePath))
|
|
{
|
|
using (var originalImage = Bitmap.FromStream(fileStream, true, false))
|
|
{
|
|
var newWidth = Convert.ToInt32(newSize.Width);
|
|
var newHeight = Convert.ToInt32(newSize.Height);
|
|
|
|
// Graphics.FromImage will throw an exception if the PixelFormat is Indexed, so we need to handle that here
|
|
var thumbnail = originalImage.PixelFormat.HasFlag(PixelFormat.Indexed) ? new Bitmap(originalImage, newWidth, newHeight) : new Bitmap(newWidth, newHeight, originalImage.PixelFormat);
|
|
|
|
// Preserve the original resolution
|
|
thumbnail.SetResolution(originalImage.HorizontalResolution, originalImage.VerticalResolution);
|
|
|
|
var thumbnailGraph = Graphics.FromImage(thumbnail);
|
|
|
|
thumbnailGraph.CompositingQuality = CompositingQuality.HighQuality;
|
|
thumbnailGraph.SmoothingMode = SmoothingMode.HighQuality;
|
|
thumbnailGraph.InterpolationMode = InterpolationMode.HighQualityBicubic;
|
|
thumbnailGraph.PixelOffsetMode = PixelOffsetMode.HighQuality;
|
|
thumbnailGraph.CompositingMode = CompositingMode.SourceOver;
|
|
|
|
thumbnailGraph.DrawImage(originalImage, 0, 0, newWidth, newHeight);
|
|
|
|
var outputFormat = originalImage.RawFormat;
|
|
|
|
using (var memoryStream = new MemoryStream { })
|
|
{
|
|
// Save to the memory stream
|
|
thumbnail.Save(outputFormat, memoryStream, quality.Value);
|
|
|
|
var bytes = memoryStream.ToArray();
|
|
|
|
var outputTask = Task.Run(async () => await toStream.WriteAsync(bytes, 0, bytes.Length));
|
|
|
|
// Save to the cache location
|
|
using (var cacheFileStream = new FileStream(cacheFilePath, FileMode.Create, FileAccess.Write, FileShare.Read, StreamDefaults.DefaultFileStreamBufferSize, FileOptions.Asynchronous))
|
|
{
|
|
// Save to the filestream
|
|
await cacheFileStream.WriteAsync(bytes, 0, bytes.Length);
|
|
}
|
|
|
|
await outputTask.ConfigureAwait(false);
|
|
}
|
|
|
|
thumbnailGraph.Dispose();
|
|
thumbnail.Dispose();
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the cache file path based on a set of parameters
|
|
/// </summary>
|
|
/// <param name="originalPath">The path to the original image file</param>
|
|
/// <param name="outputSize">The size to output the image in</param>
|
|
/// <param name="quality">Quality level, from 0-100. Currently only applies to JPG. The default value should suffice.</param>
|
|
/// <param name="dateModified">The last modified date of the image</param>
|
|
/// <returns>System.String.</returns>
|
|
private string GetCacheFilePath(string originalPath, ImageSize outputSize, int quality, DateTime dateModified)
|
|
{
|
|
var filename = originalPath;
|
|
|
|
filename += "width=" + outputSize.Width;
|
|
|
|
filename += "height=" + outputSize.Height;
|
|
|
|
filename += "quality=" + quality;
|
|
|
|
filename += "datemodified=" + dateModified.Ticks;
|
|
|
|
return ResizedImageCache.GetResourcePath(filename, Path.GetExtension(originalPath));
|
|
}
|
|
|
|
|
|
/// <summary>
|
|
/// Gets image dimensions
|
|
/// </summary>
|
|
/// <param name="imagePath">The image path.</param>
|
|
/// <param name="dateModified">The date modified.</param>
|
|
/// <returns>Task{ImageSize}.</returns>
|
|
/// <exception cref="System.ArgumentNullException">imagePath</exception>
|
|
public Task<ImageSize> GetImageSize(string imagePath, DateTime dateModified)
|
|
{
|
|
if (string.IsNullOrEmpty(imagePath))
|
|
{
|
|
throw new ArgumentNullException("imagePath");
|
|
}
|
|
|
|
var name = imagePath + "datemodified=" + dateModified.Ticks;
|
|
|
|
return _cachedImagedSizes.GetOrAdd(name, keyName => GetImageSizeTask(keyName, imagePath));
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets cached image dimensions, or results null if non-existant
|
|
/// </summary>
|
|
/// <param name="keyName">Name of the key.</param>
|
|
/// <param name="imagePath">The image path.</param>
|
|
/// <returns>Task{ImageSize}.</returns>
|
|
private Task<ImageSize> GetImageSizeTask(string keyName, string imagePath)
|
|
{
|
|
return Task.Run(() => GetImageSize(keyName, imagePath));
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the size of the image.
|
|
/// </summary>
|
|
/// <param name="keyName">Name of the key.</param>
|
|
/// <param name="imagePath">The image path.</param>
|
|
/// <returns>ImageSize.</returns>
|
|
private ImageSize GetImageSize(string keyName, string imagePath)
|
|
{
|
|
// Now check the file system cache
|
|
var fullCachePath = ImageSizeCache.GetResourcePath(keyName, ".pb");
|
|
|
|
try
|
|
{
|
|
var result = _protobufSerializer.DeserializeFromFile<int[]>(fullCachePath);
|
|
|
|
return new ImageSize { Width = result[0], Height = result[1] };
|
|
}
|
|
catch (FileNotFoundException)
|
|
{
|
|
// Cache file doesn't exist no biggie
|
|
}
|
|
|
|
var size = ImageHeader.GetDimensions(imagePath, _logger);
|
|
|
|
var imageSize = new ImageSize { Width = size.Width, Height = size.Height };
|
|
|
|
// Update the file system cache
|
|
CacheImageSize(fullCachePath, size.Width, size.Height);
|
|
|
|
return imageSize;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Caches image dimensions
|
|
/// </summary>
|
|
/// <param name="cachePath">The cache path.</param>
|
|
/// <param name="width">The width.</param>
|
|
/// <param name="height">The height.</param>
|
|
private void CacheImageSize(string cachePath, int width, int height)
|
|
{
|
|
var output = new[] { width, height };
|
|
|
|
_protobufSerializer.SerializeToFile(output, cachePath);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the image path.
|
|
/// </summary>
|
|
/// <param name="item">The item.</param>
|
|
/// <param name="imageType">Type of the image.</param>
|
|
/// <param name="imageIndex">Index of the image.</param>
|
|
/// <returns>System.String.</returns>
|
|
/// <exception cref="System.ArgumentNullException">item</exception>
|
|
/// <exception cref="System.InvalidOperationException"></exception>
|
|
public string GetImagePath(BaseItem item, ImageType imageType, int imageIndex)
|
|
{
|
|
if (item == null)
|
|
{
|
|
throw new ArgumentNullException("item");
|
|
}
|
|
|
|
if (imageType == ImageType.Backdrop)
|
|
{
|
|
if (item.BackdropImagePaths == null)
|
|
{
|
|
throw new InvalidOperationException(string.Format("Item {0} does not have any Backdrops.", item.Name));
|
|
}
|
|
|
|
return item.BackdropImagePaths[imageIndex];
|
|
}
|
|
|
|
if (imageType == ImageType.Screenshot)
|
|
{
|
|
if (item.ScreenshotImagePaths == null)
|
|
{
|
|
throw new InvalidOperationException(string.Format("Item {0} does not have any Screenshots.", item.Name));
|
|
}
|
|
|
|
return item.ScreenshotImagePaths[imageIndex];
|
|
}
|
|
|
|
if (imageType == ImageType.ChapterImage)
|
|
{
|
|
var video = (Video)item;
|
|
|
|
if (video.Chapters == null)
|
|
{
|
|
throw new InvalidOperationException(string.Format("Item {0} does not have any Chapters.", item.Name));
|
|
}
|
|
|
|
return video.Chapters[imageIndex].ImagePath;
|
|
}
|
|
|
|
return item.GetImage(imageType);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the image date modified.
|
|
/// </summary>
|
|
/// <param name="item">The item.</param>
|
|
/// <param name="imageType">Type of the image.</param>
|
|
/// <param name="imageIndex">Index of the image.</param>
|
|
/// <returns>DateTime.</returns>
|
|
/// <exception cref="System.ArgumentNullException">item</exception>
|
|
public DateTime GetImageDateModified(BaseItem item, ImageType imageType, int imageIndex)
|
|
{
|
|
if (item == null)
|
|
{
|
|
throw new ArgumentNullException("item");
|
|
}
|
|
|
|
var imagePath = GetImagePath(item, imageType, imageIndex);
|
|
|
|
return GetImageDateModified(item, imagePath);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the image date modified.
|
|
/// </summary>
|
|
/// <param name="item">The item.</param>
|
|
/// <param name="imagePath">The image path.</param>
|
|
/// <returns>DateTime.</returns>
|
|
/// <exception cref="System.ArgumentNullException">item</exception>
|
|
public DateTime GetImageDateModified(BaseItem item, string imagePath)
|
|
{
|
|
if (item == null)
|
|
{
|
|
throw new ArgumentNullException("item");
|
|
}
|
|
|
|
if (string.IsNullOrEmpty(imagePath))
|
|
{
|
|
throw new ArgumentNullException("imagePath");
|
|
}
|
|
|
|
var metaFileEntry = item.ResolveArgs.GetMetaFileByPath(imagePath);
|
|
|
|
// If we didn't the metafile entry, check the Season
|
|
if (!metaFileEntry.HasValue)
|
|
{
|
|
var episode = item as Episode;
|
|
|
|
if (episode != null && episode.Season != null)
|
|
{
|
|
episode.Season.ResolveArgs.GetMetaFileByPath(imagePath);
|
|
}
|
|
}
|
|
|
|
// See if we can avoid a file system lookup by looking for the file in ResolveArgs
|
|
return metaFileEntry == null ? File.GetLastWriteTimeUtc(imagePath) : metaFileEntry.Value.LastWriteTimeUtc;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Crops whitespace from an image, caches the result, and returns the cached path
|
|
/// </summary>
|
|
/// <param name="originalImagePath">The original image path.</param>
|
|
/// <param name="dateModified">The date modified.</param>
|
|
/// <returns>System.String.</returns>
|
|
private string GetCroppedImage(string originalImagePath, DateTime dateModified)
|
|
{
|
|
var name = originalImagePath;
|
|
name += "datemodified=" + dateModified.Ticks;
|
|
|
|
var croppedImagePath = CroppedImageCache.GetResourcePath(name, Path.GetExtension(originalImagePath));
|
|
|
|
if (!CroppedImageCache.ContainsFilePath(croppedImagePath))
|
|
{
|
|
using (var fileStream = File.OpenRead(originalImagePath))
|
|
{
|
|
using (var originalImage = (Bitmap)Bitmap.FromStream(fileStream, true, false))
|
|
{
|
|
var outputFormat = originalImage.RawFormat;
|
|
|
|
using (var croppedImage = originalImage.CropWhitespace())
|
|
{
|
|
using (var cacheFileStream = new FileStream(croppedImagePath, FileMode.Create))
|
|
{
|
|
croppedImage.Save(outputFormat, cacheFileStream, 100);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return croppedImagePath;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Runs an image through the image enhancers, caches the result, and returns the cached path
|
|
/// </summary>
|
|
/// <param name="originalImagePath">The original image path.</param>
|
|
/// <param name="dateModified">The date modified of the original image file.</param>
|
|
/// <param name="item">The item.</param>
|
|
/// <param name="imageType">Type of the image.</param>
|
|
/// <param name="imageIndex">Index of the image.</param>
|
|
/// <returns>System.String.</returns>
|
|
/// <exception cref="System.ArgumentNullException">originalImagePath</exception>
|
|
public async Task<string> GetEnhancedImage(string originalImagePath, DateTime dateModified, BaseItem item, ImageType imageType, int imageIndex)
|
|
{
|
|
if (string.IsNullOrEmpty(originalImagePath))
|
|
{
|
|
throw new ArgumentNullException("originalImagePath");
|
|
}
|
|
|
|
if (item == null)
|
|
{
|
|
throw new ArgumentNullException("item");
|
|
}
|
|
|
|
var supportedEnhancers = _kernel.ImageEnhancers.Where(i => i.Supports(item, imageType)).ToList();
|
|
|
|
// No enhancement - don't cache
|
|
if (supportedEnhancers.Count == 0)
|
|
{
|
|
return originalImagePath;
|
|
}
|
|
|
|
var cacheGuid = GetImageCacheTag(originalImagePath, dateModified, supportedEnhancers, item, imageType);
|
|
|
|
// All enhanced images are saved as png to allow transparency
|
|
var enhancedImagePath = EnhancedImageCache.GetResourcePath(cacheGuid + ".png");
|
|
|
|
if (!EnhancedImageCache.ContainsFilePath(enhancedImagePath))
|
|
{
|
|
using (var fileStream = File.OpenRead(originalImagePath))
|
|
{
|
|
using (var originalImage = Image.FromStream(fileStream, true, false))
|
|
{
|
|
//Pass the image through registered enhancers
|
|
using (var newImage = await ExecuteImageEnhancers(supportedEnhancers, originalImage, item, imageType, imageIndex).ConfigureAwait(false))
|
|
{
|
|
//And then save it in the cache
|
|
newImage.Save(enhancedImagePath, ImageFormat.Png);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return enhancedImagePath;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the image cache tag.
|
|
/// </summary>
|
|
/// <param name="item">The item.</param>
|
|
/// <param name="imageType">Type of the image.</param>
|
|
/// <param name="imagePath">The image path.</param>
|
|
/// <returns>Guid.</returns>
|
|
/// <exception cref="System.ArgumentNullException">item</exception>
|
|
public Guid GetImageCacheTag(BaseItem item, ImageType imageType, string imagePath)
|
|
{
|
|
if (item == null)
|
|
{
|
|
throw new ArgumentNullException("item");
|
|
}
|
|
|
|
if (string.IsNullOrEmpty(imagePath))
|
|
{
|
|
throw new ArgumentNullException("imagePath");
|
|
}
|
|
|
|
var dateModified = GetImageDateModified(item, imagePath);
|
|
|
|
var supportedEnhancers = _kernel.ImageEnhancers.Where(i => i.Supports(item, imageType));
|
|
|
|
return GetImageCacheTag(imagePath, dateModified, supportedEnhancers, item, imageType);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the image cache tag.
|
|
/// </summary>
|
|
/// <param name="originalImagePath">The original image path.</param>
|
|
/// <param name="dateModified">The date modified of the original image file.</param>
|
|
/// <param name="imageEnhancers">The image enhancers.</param>
|
|
/// <param name="item">The item.</param>
|
|
/// <param name="imageType">Type of the image.</param>
|
|
/// <returns>Guid.</returns>
|
|
/// <exception cref="System.ArgumentNullException">item</exception>
|
|
public Guid GetImageCacheTag(string originalImagePath, DateTime dateModified, IEnumerable<IImageEnhancer> imageEnhancers, BaseItem item, ImageType imageType)
|
|
{
|
|
if (item == null)
|
|
{
|
|
throw new ArgumentNullException("item");
|
|
}
|
|
|
|
if (imageEnhancers == null)
|
|
{
|
|
throw new ArgumentNullException("imageEnhancers");
|
|
}
|
|
|
|
if (string.IsNullOrEmpty(originalImagePath))
|
|
{
|
|
throw new ArgumentNullException("originalImagePath");
|
|
}
|
|
|
|
// Cache name is created with supported enhancers combined with the last config change so we pick up new config changes
|
|
var cacheKeys = imageEnhancers.Select(i => i.GetType().Name + i.LastConfigurationChange(item, imageType).Ticks).ToList();
|
|
cacheKeys.Add(originalImagePath + dateModified.Ticks);
|
|
|
|
return string.Join("|", cacheKeys.ToArray()).GetMD5();
|
|
}
|
|
|
|
/// <summary>
|
|
/// Executes the image enhancers.
|
|
/// </summary>
|
|
/// <param name="imageEnhancers">The image enhancers.</param>
|
|
/// <param name="originalImage">The original image.</param>
|
|
/// <param name="item">The item.</param>
|
|
/// <param name="imageType">Type of the image.</param>
|
|
/// <param name="imageIndex">Index of the image.</param>
|
|
/// <returns>Task{EnhancedImage}.</returns>
|
|
private async Task<Image> ExecuteImageEnhancers(IEnumerable<IImageEnhancer> imageEnhancers, Image originalImage, BaseItem item, ImageType imageType, int imageIndex)
|
|
{
|
|
var result = originalImage;
|
|
|
|
// Run the enhancers sequentially in order of priority
|
|
foreach (var enhancer in imageEnhancers)
|
|
{
|
|
var typeName = enhancer.GetType().Name;
|
|
|
|
_logger.Debug("Running {0} for {1}", typeName, item.Path ?? item.Name ?? "--Unknown--");
|
|
|
|
try
|
|
{
|
|
result = await enhancer.EnhanceImageAsync(item, result, imageType, imageIndex).ConfigureAwait(false);
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
_logger.ErrorException("{0} failed enhancing {1}", ex, typeName, item.Name);
|
|
|
|
throw;
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
public void Dispose()
|
|
{
|
|
Dispose(true);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Releases unmanaged and - optionally - managed resources.
|
|
/// </summary>
|
|
/// <param name="dispose"><c>true</c> to release both managed and unmanaged resources; <c>false</c> to release only unmanaged resources.</param>
|
|
protected void Dispose(bool dispose)
|
|
{
|
|
if (dispose)
|
|
{
|
|
ImageSizeCache.Dispose();
|
|
ResizedImageCache.Dispose();
|
|
CroppedImageCache.Dispose();
|
|
EnhancedImageCache.Dispose();
|
|
}
|
|
}
|
|
}
|
|
}
|