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authorLuke Pulverenti <luke.pulverenti@gmail.com>2015-04-08 08:37:07 -0400
committerLuke Pulverenti <luke.pulverenti@gmail.com>2015-04-08 08:37:07 -0400
commit78e96917e12abb963301957607da4a738f27df58 (patch)
tree5d46b69b5ea4d034c778ba0339d006cbd654a461 /Emby.Drawing
parentd6b2bf89f58f4bf9df6bc1c3578c0ee1cc152210 (diff)
move drawing code
Diffstat (limited to 'Emby.Drawing')
-rw-r--r--Emby.Drawing/Emby.Drawing.csproj17
-rw-r--r--Emby.Drawing/ImageHeader.cs223
-rw-r--r--Emby.Drawing/ImageProcessor.cs875
-rw-r--r--Emby.Drawing/PercentPlayedDrawer.cs40
-rw-r--r--Emby.Drawing/PlayedIndicatorDrawer.cs86
-rw-r--r--Emby.Drawing/UnplayedCountIndicator.cs70
-rw-r--r--Emby.Drawing/packages.config4
7 files changed, 1314 insertions, 1 deletions
diff --git a/Emby.Drawing/Emby.Drawing.csproj b/Emby.Drawing/Emby.Drawing.csproj
index 4b72fef15f..7e833eeeb5 100644
--- a/Emby.Drawing/Emby.Drawing.csproj
+++ b/Emby.Drawing/Emby.Drawing.csproj
@@ -11,6 +11,8 @@
<AssemblyName>Emby.Drawing</AssemblyName>
<TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
<FileAlignment>512</FileAlignment>
+ <SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\</SolutionDir>
+ <RestorePackages>true</RestorePackages>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
<DebugSymbols>true</DebugSymbols>
@@ -30,6 +32,9 @@
<WarningLevel>4</WarningLevel>
</PropertyGroup>
<ItemGroup>
+ <Reference Include="ImageMagickSharp">
+ <HintPath>..\packages\ImageMagickSharp.1.0.0.13\lib\net45\ImageMagickSharp.dll</HintPath>
+ </Reference>
<Reference Include="System" />
<Reference Include="System.Core" />
<Reference Include="System.Drawing" />
@@ -43,11 +48,21 @@
<Compile Include="..\SharedVersion.cs">
<Link>Properties\SharedVersion.cs</Link>
</Compile>
+ <Compile Include="ImageHeader.cs" />
+ <Compile Include="ImageProcessor.cs" />
+ <Compile Include="PercentPlayedDrawer.cs" />
+ <Compile Include="PlayedIndicatorDrawer.cs" />
<Compile Include="Properties\AssemblyInfo.cs" />
+ <Compile Include="UnplayedCountIndicator.cs" />
</ItemGroup>
<ItemGroup>
<Folder Include="GDI\" />
- <Folder Include="ImageMagick\" />
+ </ItemGroup>
+ <ItemGroup>
+ <EmbeddedResource Include="ImageMagick\fonts\MontserratLight.otf" />
+ <EmbeddedResource Include="ImageMagick\fonts\robotoregular.ttf" />
+ <EmbeddedResource Include="ImageMagick\fonts\webdings.ttf" />
+ <None Include="packages.config" />
</ItemGroup>
<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
<!-- To modify your build process, add your task inside one of the targets below and uncomment it.
diff --git a/Emby.Drawing/ImageHeader.cs b/Emby.Drawing/ImageHeader.cs
new file mode 100644
index 0000000000..7117482c8a
--- /dev/null
+++ b/Emby.Drawing/ImageHeader.cs
@@ -0,0 +1,223 @@
+using MediaBrowser.Common.IO;
+using MediaBrowser.Model.Drawing;
+using MediaBrowser.Model.Logging;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+
+namespace MediaBrowser.Server.Implementations.Drawing
+{
+ /// <summary>
+ /// Taken from http://stackoverflow.com/questions/111345/getting-image-dimensions-without-reading-the-entire-file/111349
+ /// http://www.codeproject.com/Articles/35978/Reading-Image-Headers-to-Get-Width-and-Height
+ /// Minor improvements including supporting unsigned 16-bit integers when decoding Jfif and added logic
+ /// to load the image using new Bitmap if reading the headers fails
+ /// </summary>
+ public static class ImageHeader
+ {
+ /// <summary>
+ /// The error message
+ /// </summary>
+ const string ErrorMessage = "Could not recognize image format.";
+
+ /// <summary>
+ /// The image format decoders
+ /// </summary>
+ private static readonly KeyValuePair<byte[], Func<BinaryReader, ImageSize>>[] ImageFormatDecoders = new Dictionary<byte[], Func<BinaryReader, ImageSize>>
+ {
+ { new byte[] { 0x42, 0x4D }, DecodeBitmap },
+ { new byte[] { 0x47, 0x49, 0x46, 0x38, 0x37, 0x61 }, DecodeGif },
+ { new byte[] { 0x47, 0x49, 0x46, 0x38, 0x39, 0x61 }, DecodeGif },
+ { new byte[] { 0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A }, DecodePng },
+ { new byte[] { 0xff, 0xd8 }, DecodeJfif }
+
+ }.ToArray();
+
+ private static readonly int MaxMagicBytesLength = ImageFormatDecoders.Select(i => i.Key.Length).OrderByDescending(i => i).First();
+
+ /// <summary>
+ /// Gets the dimensions of an image.
+ /// </summary>
+ /// <param name="path">The path of the image to get the dimensions of.</param>
+ /// <param name="logger">The logger.</param>
+ /// <param name="fileSystem">The file system.</param>
+ /// <returns>The dimensions of the specified image.</returns>
+ /// <exception cref="ArgumentException">The image was of an unrecognised format.</exception>
+ public static ImageSize GetDimensions(string path, ILogger logger, IFileSystem fileSystem)
+ {
+ using (var fs = File.OpenRead(path))
+ {
+ using (var binaryReader = new BinaryReader(fs))
+ {
+ return GetDimensions(binaryReader);
+ }
+ }
+ }
+
+ /// <summary>
+ /// Gets the dimensions of an image.
+ /// </summary>
+ /// <param name="binaryReader">The binary reader.</param>
+ /// <returns>Size.</returns>
+ /// <exception cref="System.ArgumentException">binaryReader</exception>
+ /// <exception cref="ArgumentException">The image was of an unrecognized format.</exception>
+ private static ImageSize GetDimensions(BinaryReader binaryReader)
+ {
+ var magicBytes = new byte[MaxMagicBytesLength];
+
+ for (var i = 0; i < MaxMagicBytesLength; i += 1)
+ {
+ magicBytes[i] = binaryReader.ReadByte();
+
+ foreach (var kvPair in ImageFormatDecoders)
+ {
+ if (StartsWith(magicBytes, kvPair.Key))
+ {
+ return kvPair.Value(binaryReader);
+ }
+ }
+ }
+
+ throw new ArgumentException(ErrorMessage, "binaryReader");
+ }
+
+ /// <summary>
+ /// Startses the with.
+ /// </summary>
+ /// <param name="thisBytes">The this bytes.</param>
+ /// <param name="thatBytes">The that bytes.</param>
+ /// <returns><c>true</c> if XXXX, <c>false</c> otherwise</returns>
+ private static bool StartsWith(byte[] thisBytes, byte[] thatBytes)
+ {
+ for (int i = 0; i < thatBytes.Length; i += 1)
+ {
+ if (thisBytes[i] != thatBytes[i])
+ {
+ return false;
+ }
+ }
+
+ return true;
+ }
+
+ /// <summary>
+ /// Reads the little endian int16.
+ /// </summary>
+ /// <param name="binaryReader">The binary reader.</param>
+ /// <returns>System.Int16.</returns>
+ private static short ReadLittleEndianInt16(BinaryReader binaryReader)
+ {
+ var bytes = new byte[sizeof(short)];
+
+ for (int i = 0; i < sizeof(short); i += 1)
+ {
+ bytes[sizeof(short) - 1 - i] = binaryReader.ReadByte();
+ }
+ return BitConverter.ToInt16(bytes, 0);
+ }
+
+ /// <summary>
+ /// Reads the little endian int32.
+ /// </summary>
+ /// <param name="binaryReader">The binary reader.</param>
+ /// <returns>System.Int32.</returns>
+ private static int ReadLittleEndianInt32(BinaryReader binaryReader)
+ {
+ var bytes = new byte[sizeof(int)];
+ for (int i = 0; i < sizeof(int); i += 1)
+ {
+ bytes[sizeof(int) - 1 - i] = binaryReader.ReadByte();
+ }
+ return BitConverter.ToInt32(bytes, 0);
+ }
+
+ /// <summary>
+ /// Decodes the bitmap.
+ /// </summary>
+ /// <param name="binaryReader">The binary reader.</param>
+ /// <returns>Size.</returns>
+ private static ImageSize DecodeBitmap(BinaryReader binaryReader)
+ {
+ binaryReader.ReadBytes(16);
+ int width = binaryReader.ReadInt32();
+ int height = binaryReader.ReadInt32();
+ return new ImageSize
+ {
+ Width = width,
+ Height = height
+ };
+ }
+
+ /// <summary>
+ /// Decodes the GIF.
+ /// </summary>
+ /// <param name="binaryReader">The binary reader.</param>
+ /// <returns>Size.</returns>
+ private static ImageSize DecodeGif(BinaryReader binaryReader)
+ {
+ int width = binaryReader.ReadInt16();
+ int height = binaryReader.ReadInt16();
+ return new ImageSize
+ {
+ Width = width,
+ Height = height
+ };
+ }
+
+ /// <summary>
+ /// Decodes the PNG.
+ /// </summary>
+ /// <param name="binaryReader">The binary reader.</param>
+ /// <returns>Size.</returns>
+ private static ImageSize DecodePng(BinaryReader binaryReader)
+ {
+ binaryReader.ReadBytes(8);
+ int width = ReadLittleEndianInt32(binaryReader);
+ int height = ReadLittleEndianInt32(binaryReader);
+ return new ImageSize
+ {
+ Width = width,
+ Height = height
+ };
+ }
+
+ /// <summary>
+ /// Decodes the jfif.
+ /// </summary>
+ /// <param name="binaryReader">The binary reader.</param>
+ /// <returns>Size.</returns>
+ /// <exception cref="System.ArgumentException"></exception>
+ private static ImageSize DecodeJfif(BinaryReader binaryReader)
+ {
+ while (binaryReader.ReadByte() == 0xff)
+ {
+ byte marker = binaryReader.ReadByte();
+ short chunkLength = ReadLittleEndianInt16(binaryReader);
+ if (marker == 0xc0)
+ {
+ binaryReader.ReadByte();
+ int height = ReadLittleEndianInt16(binaryReader);
+ int width = ReadLittleEndianInt16(binaryReader);
+ return new ImageSize
+ {
+ Width = width,
+ Height = height
+ };
+ }
+
+ if (chunkLength < 0)
+ {
+ var uchunkLength = (ushort)chunkLength;
+ binaryReader.ReadBytes(uchunkLength - 2);
+ }
+ else
+ {
+ binaryReader.ReadBytes(chunkLength - 2);
+ }
+ }
+
+ throw new ArgumentException(ErrorMessage);
+ }
+ }
+}
diff --git a/Emby.Drawing/ImageProcessor.cs b/Emby.Drawing/ImageProcessor.cs
new file mode 100644
index 0000000000..d78d5e8ea1
--- /dev/null
+++ b/Emby.Drawing/ImageProcessor.cs
@@ -0,0 +1,875 @@
+using ImageMagickSharp;
+using MediaBrowser.Common.Extensions;
+using MediaBrowser.Common.IO;
+using MediaBrowser.Controller;
+using MediaBrowser.Controller.Drawing;
+using MediaBrowser.Controller.Entities;
+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.Globalization;
+using System.IO;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace MediaBrowser.Server.Implementations.Drawing
+{
+ /// <summary>
+ /// Class ImageProcessor
+ /// </summary>
+ public class ImageProcessor : IImageProcessor, IDisposable
+ {
+ /// <summary>
+ /// The us culture
+ /// </summary>
+ protected readonly CultureInfo UsCulture = new CultureInfo("en-US");
+
+ /// <summary>
+ /// The _cached imaged sizes
+ /// </summary>
+ private readonly ConcurrentDictionary<Guid, ImageSize> _cachedImagedSizes;
+
+ /// <summary>
+ /// Gets the list of currently registered image processors
+ /// Image processors are specialized metadata providers that run after the normal ones
+ /// </summary>
+ /// <value>The image enhancers.</value>
+ public IEnumerable<IImageEnhancer> ImageEnhancers { get; private set; }
+
+ /// <summary>
+ /// The _logger
+ /// </summary>
+ private readonly ILogger _logger;
+
+ private readonly IFileSystem _fileSystem;
+ private readonly IJsonSerializer _jsonSerializer;
+ private readonly IServerApplicationPaths _appPaths;
+
+ public ImageProcessor(ILogger logger, IServerApplicationPaths appPaths, IFileSystem fileSystem, IJsonSerializer jsonSerializer)
+ {
+ _logger = logger;
+ _fileSystem = fileSystem;
+ _jsonSerializer = jsonSerializer;
+ _appPaths = appPaths;
+
+ _saveImageSizeTimer = new Timer(SaveImageSizeCallback, null, Timeout.Infinite, Timeout.Infinite);
+
+ Dictionary<Guid, ImageSize> sizeDictionary;
+
+ try
+ {
+ sizeDictionary = jsonSerializer.DeserializeFromFile<Dictionary<Guid, ImageSize>>(ImageSizeFile) ??
+ new Dictionary<Guid, ImageSize>();
+ }
+ catch (FileNotFoundException)
+ {
+ // No biggie
+ sizeDictionary = new Dictionary<Guid, ImageSize>();
+ }
+ catch (DirectoryNotFoundException)
+ {
+ // No biggie
+ sizeDictionary = new Dictionary<Guid, ImageSize>();
+ }
+ catch (Exception ex)
+ {
+ logger.ErrorException("Error parsing image size cache file", ex);
+
+ sizeDictionary = new Dictionary<Guid, ImageSize>();
+ }
+
+ _cachedImagedSizes = new ConcurrentDictionary<Guid, ImageSize>(sizeDictionary);
+
+ LogImageMagickVersionVersion();
+ }
+
+ private string ResizedImageCachePath
+ {
+ get
+ {
+ return Path.Combine(_appPaths.ImageCachePath, "resized-images");
+ }
+ }
+
+ private string EnhancedImageCachePath
+ {
+ get
+ {
+ return Path.Combine(_appPaths.ImageCachePath, "enhanced-images");
+ }
+ }
+
+ private string CroppedWhitespaceImageCachePath
+ {
+ get
+ {
+ return Path.Combine(_appPaths.ImageCachePath, "cropped-images");
+ }
+ }
+
+ public void AddParts(IEnumerable<IImageEnhancer> enhancers)
+ {
+ ImageEnhancers = enhancers.ToArray();
+ }
+
+ public async Task ProcessImage(ImageProcessingOptions options, Stream toStream)
+ {
+ var file = await ProcessImage(options).ConfigureAwait(false);
+
+ using (var fileStream = _fileSystem.GetFileStream(file, FileMode.Open, FileAccess.Read, FileShare.Read, true))
+ {
+ await fileStream.CopyToAsync(toStream).ConfigureAwait(false);
+ }
+ }
+
+ public ImageFormat[] GetSupportedImageOutputFormats()
+ {
+ if (_webpAvailable)
+ {
+ return new[] { ImageFormat.Webp, ImageFormat.Gif, ImageFormat.Jpg, ImageFormat.Png };
+ }
+ return new[] { ImageFormat.Gif, ImageFormat.Jpg, ImageFormat.Png };
+ }
+
+ private bool _webpAvailable = true;
+ private void TestWebp()
+ {
+ try
+ {
+ var tmpPath = Path.Combine(_appPaths.TempDirectory, Guid.NewGuid() + ".webp");
+ Directory.CreateDirectory(Path.GetDirectoryName(tmpPath));
+
+ using (var wand = new MagickWand(1, 1, new PixelWand("none", 1)))
+ {
+ wand.SaveImage(tmpPath);
+ }
+ }
+ catch (Exception ex)
+ {
+ _logger.ErrorException("Error loading webp: ", ex);
+ _webpAvailable = false;
+ }
+ }
+
+ private void LogImageMagickVersionVersion()
+ {
+ try
+ {
+ _logger.Info("ImageMagick version: " + Wand.VersionString);
+ }
+ catch (Exception ex)
+ {
+ _logger.ErrorException("Error loading ImageMagick: ", ex);
+ }
+ TestWebp();
+ }
+
+ public async Task<string> ProcessImage(ImageProcessingOptions options)
+ {
+ if (options == null)
+ {
+ throw new ArgumentNullException("options");
+ }
+
+ var originalImagePath = options.Image.Path;
+
+ if (options.HasDefaultOptions(originalImagePath) && options.Enhancers.Count == 0 && !options.CropWhiteSpace)
+ {
+ // Just spit out the original file if all the options are default
+ return originalImagePath;
+ }
+
+ var dateModified = options.Image.DateModified;
+ var length = options.Image.Length;
+
+ if (options.CropWhiteSpace)
+ {
+ var tuple = await GetWhitespaceCroppedImage(originalImagePath, dateModified, length).ConfigureAwait(false);
+
+ originalImagePath = tuple.Item1;
+ dateModified = tuple.Item2;
+ length = tuple.Item3;
+ }
+
+ if (options.Enhancers.Count > 0)
+ {
+ var tuple = await GetEnhancedImage(new ItemImageInfo
+ {
+ Length = length,
+ DateModified = dateModified,
+ Type = options.Image.Type,
+ Path = originalImagePath
+
+ }, options.Item, options.ImageIndex, options.Enhancers).ConfigureAwait(false);
+
+ originalImagePath = tuple.Item1;
+ dateModified = tuple.Item2;
+ length = tuple.Item3;
+ }
+
+ var originalImageSize = GetImageSize(originalImagePath, dateModified);
+
+ // Determine the output size based on incoming parameters
+ var newSize = DrawingUtils.Resize(originalImageSize, options.Width, options.Height, options.MaxWidth, options.MaxHeight);
+
+ if (options.HasDefaultOptionsWithoutSize(originalImagePath) && newSize.Equals(originalImageSize) && options.Enhancers.Count == 0)
+ {
+ // Just spit out the original file if the new size equals the old
+ return originalImagePath;
+ }
+
+ var quality = options.Quality ?? 90;
+
+ var outputFormat = GetOutputFormat(options.OutputFormat);
+ var cacheFilePath = GetCacheFilePath(originalImagePath, newSize, quality, dateModified, length, outputFormat, options.AddPlayedIndicator, options.PercentPlayed, options.UnplayedCount, options.BackgroundColor);
+
+ var semaphore = GetLock(cacheFilePath);
+
+ await semaphore.WaitAsync().ConfigureAwait(false);
+
+ try
+ {
+ CheckDisposed();
+
+ if (!File.Exists(cacheFilePath))
+ {
+ var newWidth = Convert.ToInt32(newSize.Width);
+ var newHeight = Convert.ToInt32(newSize.Height);
+
+ Directory.CreateDirectory(Path.GetDirectoryName(cacheFilePath));
+
+ if (string.IsNullOrWhiteSpace(options.BackgroundColor))
+ {
+ using (var originalImage = new MagickWand(originalImagePath))
+ {
+ originalImage.CurrentImage.ResizeImage(newWidth, newHeight);
+
+ DrawIndicator(originalImage, newWidth, newHeight, options);
+
+ originalImage.CurrentImage.CompressionQuality = quality;
+
+ originalImage.SaveImage(cacheFilePath);
+ }
+ }
+ else
+ {
+ using (var wand = new MagickWand(newWidth, newHeight, options.BackgroundColor))
+ {
+ using (var originalImage = new MagickWand(originalImagePath))
+ {
+ originalImage.CurrentImage.ResizeImage(newWidth, newHeight);
+
+ wand.CurrentImage.CompositeImage(originalImage, CompositeOperator.OverCompositeOp, 0, 0);
+ DrawIndicator(wand, newWidth, newHeight, options);
+
+ wand.CurrentImage.CompressionQuality = quality;
+
+ wand.SaveImage(cacheFilePath);
+ }
+ }
+ }
+ }
+ }
+ finally
+ {
+ semaphore.Release();
+ }
+
+ return cacheFilePath;
+ }
+
+ private ImageFormat GetOutputFormat(ImageFormat requestedFormat)
+ {
+ if (requestedFormat == ImageFormat.Webp && !_webpAvailable)
+ {
+ return ImageFormat.Png;
+ }
+
+ return requestedFormat;
+ }
+
+ /// <summary>
+ /// Draws the indicator.
+ /// </summary>
+ /// <param name="wand">The wand.</param>
+ /// <param name="imageWidth">Width of the image.</param>
+ /// <param name="imageHeight">Height of the image.</param>
+ /// <param name="options">The options.</param>
+ private void DrawIndicator(MagickWand wand, int imageWidth, int imageHeight, ImageProcessingOptions options)
+ {
+ if (!options.AddPlayedIndicator && !options.UnplayedCount.HasValue && options.PercentPlayed.Equals(0))
+ {
+ return;
+ }
+
+ try
+ {
+ if (options.AddPlayedIndicator)
+ {
+ var currentImageSize = new ImageSize(imageWidth, imageHeight);
+
+ new PlayedIndicatorDrawer(_appPaths).DrawPlayedIndicator(wand, currentImageSize);
+ }
+ else if (options.UnplayedCount.HasValue)
+ {
+ var currentImageSize = new ImageSize(imageWidth, imageHeight);
+
+ new UnplayedCountIndicator(_appPaths).DrawUnplayedCountIndicator(wand, currentImageSize, options.UnplayedCount.Value);
+ }
+
+ if (options.PercentPlayed > 0)
+ {
+ new PercentPlayedDrawer().Process(wand, options.PercentPlayed);
+ }
+ }
+ catch (Exception ex)
+ {
+ _logger.ErrorException("Error drawing indicator overlay", ex);
+ }
+ }
+
+ /// <summary>
+ /// Crops whitespace from an image, caches the result, and returns the cached path
+ /// </summary>
+ private async Task<Tuple<string, DateTime, long>> GetWhitespaceCroppedImage(string originalImagePath, DateTime dateModified, long length)
+ {
+ var name = originalImagePath;
+ name += "datemodified=" + dateModified.Ticks;
+ name += "length=" + length;
+
+ var croppedImagePath = GetCachePath(CroppedWhitespaceImageCachePath, name, Path.GetExtension(originalImagePath));
+
+ var semaphore = GetLock(croppedImagePath);
+
+ await semaphore.WaitAsync().ConfigureAwait(false);
+
+ // Check again in case of contention
+ if (File.Exists(croppedImagePath))
+ {
+ semaphore.Release();
+ return GetResult(croppedImagePath);
+ }
+
+ try
+ {
+ Directory.CreateDirectory(Path.GetDirectoryName(croppedImagePath));
+
+ using (var wand = new MagickWand(originalImagePath))
+ {
+ wand.CurrentImage.TrimImage(10);
+ wand.SaveImage(croppedImagePath);
+ }
+ }
+ 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 {0}", ex, originalImagePath);
+
+ return new Tuple<string, DateTime, long>(originalImagePath, dateModified, length);
+ }
+ finally
+ {
+ semaphore.Release();
+ }
+
+ return GetResult(croppedImagePath);
+ }
+
+ private Tuple<string, DateTime, long> GetResult(string path)
+ {
+ var file = new FileInfo(path);
+
+ return new Tuple<string, DateTime, long>(path, _fileSystem.GetLastWriteTimeUtc(file), file.Length);
+ }
+
+ /// <summary>
+ /// Increment this when there's a change requiring caches to be invalidated
+ /// </summary>
+ private const string Version = "3";
+
+ /// <summary>
+ /// Gets the cache file path based on a set of parameters
+ /// </summary>
+ private string GetCacheFilePath(string originalPath, ImageSize outputSize, int quality, DateTime dateModified, long length, ImageFormat format, bool addPlayedIndicator, double percentPlayed, int? unwatchedCount, string backgroundColor)
+ {
+ var filename = originalPath;
+
+ filename += "width=" + outputSize.Width;
+
+ filename += "height=" + outputSize.Height;
+
+ filename += "quality=" + quality;
+
+ filename += "datemodified=" + dateModified.Ticks;
+ filename += "length=" + length;
+
+ filename += "f=" + format;
+
+ if (addPlayedIndicator)
+ {
+ filename += "pl=true";
+ }
+
+ if (percentPlayed > 0)
+ {
+ filename += "p=" + percentPlayed;
+ }
+
+ if (unwatchedCount.HasValue)
+ {
+ filename += "p=" + unwatchedCount.Value;
+ }
+
+ if (!string.IsNullOrEmpty(backgroundColor))
+ {
+ filename += "b=" + backgroundColor;
+ }
+
+ filename += "v=" + Version;
+
+ return GetCachePath(ResizedImageCachePath, filename, "." + format.ToString().ToLower());
+ }
+
+ /// <summary>
+ /// Gets the size of the image.
+ /// </summary>
+ /// <param name="path">The path.</param>
+ /// <returns>ImageSize.</returns>
+ public ImageSize GetImageSize(string path)
+ {
+ return GetImageSize(path, File.GetLastWriteTimeUtc(path));
+ }
+
+ public ImageSize GetImageSize(ItemImageInfo info)
+ {
+ return GetImageSize(info.Path, info.DateModified);
+ }
+
+ /// <summary>
+ /// Gets the size of the image.
+ /// </summary>
+ /// <param name="path">The path.</param>
+ /// <param name="imageDateModified">The image date modified.</param>
+ /// <returns>ImageSize.</returns>
+ /// <exception cref="System.ArgumentNullException">path</exception>
+ private ImageSize GetImageSize(string path, DateTime imageDateModified)
+ {
+ if (string.IsNullOrEmpty(path))
+ {
+ throw new ArgumentNullException("path");
+ }
+
+ var name = path + "datemodified=" + imageDateModified.Ticks;
+
+ ImageSize size;
+
+ var cacheHash = name.GetMD5();
+
+ if (!_cachedImagedSizes.TryGetValue(cacheHash, out size))
+ {
+ size = GetImageSizeInternal(path);
+
+ _cachedImagedSizes.AddOrUpdate(cacheHash, size, (keyName, oldValue) => size);
+ }
+
+ return size;
+ }
+
+ /// <summary>
+ /// Gets the image size internal.
+ /// </summary>
+ /// <param name="path">The path.</param>
+ /// <returns>ImageSize.</returns>
+ private ImageSize GetImageSizeInternal(string path)
+ {
+ ImageSize size;
+
+ try
+ {
+ size = ImageHeader.GetDimensions(path, _logger, _fileSystem);
+ }
+ catch
+ {
+ _logger.Info("Failed to read image header for {0}. Doing it the slow way.", path);
+
+ CheckDisposed();
+
+ using (var wand = new MagickWand())
+ {
+ wand.PingImage(path);
+ var img = wand.CurrentImage;
+
+ size = new ImageSize
+ {
+ Width = img.Width,
+ Height = img.Height
+ };
+ }
+ }
+
+ StartSaveImageSizeTimer();
+
+ return size;
+ }
+
+ private readonly Timer _saveImageSizeTimer;
+ private const int SaveImageSizeTimeout = 5000;
+ private readonly object _saveImageSizeLock = new object();
+ private void StartSaveImageSizeTimer()
+ {
+ _saveImageSizeTimer.Change(SaveImageSizeTimeout, Timeout.Infinite);
+ }
+
+ private void SaveImageSizeCallback(object state)
+ {
+ lock (_saveImageSizeLock)
+ {
+ try
+ {
+ var path = ImageSizeFile;
+ Directory.CreateDirectory(Path.GetDirectoryName(path));
+ _jsonSerializer.SerializeToFile(_cachedImagedSizes, path);
+ }
+ catch (Exception ex)
+ {
+ _logger.ErrorException("Error saving image size file", ex);
+ }
+ }
+ }
+
+ private string ImageSizeFile
+ {
+ get
+ {
+ return Path.Combine(_appPaths.DataPath, "imagesizes.json");
+ }
+ }
+
+ /// <summary>
+ /// Gets the image cache tag.
+ /// </summary>
+ /// <param name="item">The item.</param>
+ /// <param name="image">The image.</param>
+ /// <returns>Guid.</returns>
+ /// <exception cref="System.ArgumentNullException">item</exception>
+ public string GetImageCacheTag(IHasImages item, ItemImageInfo image)
+ {
+ if (item == null)
+ {
+ throw new ArgumentNullException("item");
+ }
+
+ if (image == null)
+ {
+ throw new ArgumentNullException("image");
+ }
+
+ var supportedEnhancers = GetSupportedEnhancers(item, image.Type);
+
+ return GetImageCacheTag(item, image, supportedEnhancers.ToList());
+ }
+
+ /// <summary>
+ /// Gets the image cache tag.
+ /// </summary>
+ /// <param name="item">The item.</param>
+ /// <param name="image">The image.</param>
+ /// <param name="imageEnhancers">The image enhancers.</param>
+ /// <returns>Guid.</returns>
+ /// <exception cref="System.ArgumentNullException">item</exception>
+ public string GetImageCacheTag(IHasImages item, ItemImageInfo image, List<IImageEnhancer> imageEnhancers)
+ {
+ if (item == null)
+ {
+ throw new ArgumentNullException("item");
+ }
+
+ if (imageEnhancers == null)
+ {
+ throw new ArgumentNullException("imageEnhancers");
+ }
+
+ if (image == null)
+ {
+ throw new ArgumentNullException("image");
+ }
+
+ var originalImagePath = image.Path;
+ var dateModified = image.DateModified;
+ var imageType = image.Type;
+ var length = image.Length;
+
+ // Optimization
+ if (imageEnhancers.Count == 0)
+ {
+ return (originalImagePath + dateModified.Ticks + string.Empty + length).GetMD5().ToString("N");
+ }
+
+ // 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.GetConfigurationCacheKey(item, imageType)).ToList();
+ cacheKeys.Add(originalImagePath + dateModified.Ticks + string.Empty + length);
+
+ return string.Join("|", cacheKeys.ToArray()).GetMD5().ToString("N");
+ }
+
+ /// <summary>
+ /// Gets the enhanced image.
+ /// </summary>
+ /// <param name="item">The item.</param>
+ /// <param name="imageType">Type of the image.</param>
+ /// <param name="imageIndex">Index of the image.</param>
+ /// <returns>Task{System.String}.</returns>
+ public async Task<string> GetEnhancedImage(IHasImages item, ImageType imageType, int imageIndex)
+ {
+ var enhancers = GetSupportedEnhancers(item, imageType).ToList();
+
+ var imageInfo = item.GetImageInfo(imageType, imageIndex);
+
+ var result = await GetEnhancedImage(imageInfo, item, imageIndex, enhancers);
+
+ return result.Item1;
+ }
+
+ private async Task<Tuple<string, DateTime, long>> GetEnhancedImage(ItemImageInfo image,
+ IHasImages item,
+ int imageIndex,
+ List<IImageEnhancer> enhancers)
+ {
+ var originalImagePath = image.Path;
+ var dateModified = image.DateModified;
+ var imageType = image.Type;
+ var length = image.Length;
+
+ try
+ {
+ var cacheGuid = GetImageCacheTag(item, image, enhancers);
+
+ // Enhance if we have enhancers
+ var ehnancedImagePath = await GetEnhancedImageInternal(originalImagePath, item, imageType, imageIndex, enhancers, cacheGuid).ConfigureAwait(false);
+
+ // If the path changed update dateModified
+ if (!ehnancedImagePath.Equals(originalImagePath, StringComparison.OrdinalIgnoreCase))
+ {
+ return GetResult(ehnancedImagePath);
+ }
+ }
+ catch (Exception ex)
+ {
+ _logger.Error("Error enhancing image", ex);
+ }
+
+ return new Tuple<string, DateTime, long>(originalImagePath, dateModified, length);
+ }
+
+ /// <summary>
+ /// Gets the enhanced image internal.
+ /// </summary>
+ /// <param name="originalImagePath">The original image path.</param>
+ /// <param name="item">The item.</param>
+ /// <param name="imageType">Type of the image.</param>
+ /// <param name="imageIndex">Index of the image.</param>
+ /// <param name="supportedEnhancers">The supported enhancers.</param>
+ /// <param name="cacheGuid">The cache unique identifier.</param>
+ /// <returns>Task&lt;System.String&gt;.</returns>
+ /// <exception cref="ArgumentNullException">
+ /// originalImagePath
+ /// or
+ /// item
+ /// </exception>
+ private async Task<string> GetEnhancedImageInternal(string originalImagePath,
+ IHasImages item,
+ ImageType imageType,
+ int imageIndex,
+ IEnumerable<IImageEnhancer> supportedEnhancers,
+ string cacheGuid)
+ {
+ if (string.IsNullOrEmpty(originalImagePath))
+ {
+ throw new ArgumentNullException("originalImagePath");
+ }
+
+ if (item == null)
+ {
+ throw new ArgumentNullException("item");
+ }
+
+ // All enhanced images are saved as png to allow transparency
+ var enhancedImagePath = GetCachePath(EnhancedImageCachePath, cacheGuid + ".png");
+
+ var semaphore = GetLock(enhancedImagePath);
+
+ await semaphore.WaitAsync().ConfigureAwait(false);
+
+ // Check again in case of contention
+ if (File.Exists(enhancedImagePath))
+ {
+ semaphore.Release();
+ return enhancedImagePath;
+ }
+
+ try
+ {
+ Directory.CreateDirectory(Path.GetDirectoryName(enhancedImagePath));
+ await ExecuteImageEnhancers(supportedEnhancers, originalImagePath, enhancedImagePath, item, imageType, imageIndex).ConfigureAwait(false);
+ }
+ finally
+ {
+ semaphore.Release();
+ }
+
+ return enhancedImagePath;
+ }
+
+ /// <summary>
+ /// Executes the image enhancers.
+ /// </summary>
+ /// <param name="imageEnhancers">The image enhancers.</param>
+ /// <param name="inputPath">The input path.</param>
+ /// <param name="outputPath">The output path.</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 ExecuteImageEnhancers(IEnumerable<IImageEnhancer> imageEnhancers, string inputPath, string outputPath, IHasImages item, ImageType imageType, int imageIndex)
+ {
+ // Run the enhancers sequentially in order of priority
+ foreach (var enhancer in imageEnhancers)
+ {
+ var typeName = enhancer.GetType().Name;
+
+ try
+ {
+ await enhancer.EnhanceImageAsync(item, inputPath, outputPath, imageType, imageIndex).ConfigureAwait(false);
+ }
+ catch (Exception ex)
+ {
+ _logger.ErrorException("{0} failed enhancing {1}", ex, typeName, item.Name);
+
+ throw;
+ }
+
+ // Feed the output into the next enhancer as input
+ inputPath = outputPath;
+ }
+ }
+
+ /// <summary>
+ /// The _semaphoreLocks
+ /// </summary>
+ private readonly ConcurrentDictionary<string, SemaphoreSlim> _semaphoreLocks = new ConcurrentDictionary<string, SemaphoreSlim>();
+
+ /// <summary>
+ /// Gets the lock.
+ /// </summary>
+ /// <param name="filename">The filename.</param>
+ /// <returns>System.Object.</returns>
+ private SemaphoreSlim GetLock(string filename)
+ {
+ return _semaphoreLocks.GetOrAdd(filename, key => new SemaphoreSlim(1, 1));
+ }
+
+ /// <summary>
+ /// Gets the cache path.
+ /// </summary>
+ /// <param name="path">The path.</param>
+ /// <param name="uniqueName">Name of the unique.</param>
+ /// <param name="fileExtension">The file extension.</param>
+ /// <returns>System.String.</returns>
+ /// <exception cref="System.ArgumentNullException">
+ /// path
+ /// or
+ /// uniqueName
+ /// or
+ /// fileExtension
+ /// </exception>
+ public string GetCachePath(string path, string uniqueName, string fileExtension)
+ {
+ if (string.IsNullOrEmpty(path))
+ {
+ throw new ArgumentNullException("path");
+ }
+ if (string.IsNullOrEmpty(uniqueName))
+ {
+ throw new ArgumentNullException("uniqueName");
+ }
+
+ if (string.IsNullOrEmpty(fileExtension))
+ {
+ throw new ArgumentNullException("fileExtension");
+ }
+
+ var filename = uniqueName.GetMD5() + fileExtension;
+
+ return GetCachePath(path, filename);
+ }
+
+ /// <summary>
+ /// Gets the cache path.
+ /// </summary>
+ /// <param name="path">The path.</param>
+ /// <param name="filename">The filename.</param>
+ /// <returns>System.String.</returns>
+ /// <exception cref="System.ArgumentNullException">
+ /// path
+ /// or
+ /// filename
+ /// </exception>
+ public string GetCachePath(string path, string filename)
+ {
+ if (string.IsNullOrEmpty(path))
+ {
+ throw new ArgumentNullException("path");
+ }
+ if (string.IsNullOrEmpty(filename))
+ {
+ throw new ArgumentNullException("filename");
+ }
+
+ var prefix = filename.Substring(0, 1);
+
+ path = Path.Combine(path, prefix);
+
+ return Path.Combine(path, filename);
+ }
+
+ public IEnumerable<IImageEnhancer> GetSupportedEnhancers(IHasImages item, ImageType imageType)
+ {
+ return ImageEnhancers.Where(i =>
+ {
+ try
+ {
+ return i.Supports(item, imageType);
+ }
+ catch (Exception ex)
+ {
+ _logger.ErrorException("Error in image enhancer: {0}", ex, i.GetType().Name);
+
+ return false;
+ }
+
+ });
+ }
+
+ private bool _disposed;
+ public void Dispose()
+ {
+ _disposed = true;
+ Wand.CloseEnvironment();
+ _saveImageSizeTimer.Dispose();
+ }
+
+ private void CheckDisposed()
+ {
+ if (_disposed)
+ {
+ throw new ObjectDisposedException(GetType().Name);
+ }
+ }
+ }
+}
diff --git a/Emby.Drawing/PercentPlayedDrawer.cs b/Emby.Drawing/PercentPlayedDrawer.cs
new file mode 100644
index 0000000000..20c2ab93be
--- /dev/null
+++ b/Emby.Drawing/PercentPlayedDrawer.cs
@@ -0,0 +1,40 @@
+using ImageMagickSharp;
+using System;
+
+namespace MediaBrowser.Server.Implementations.Drawing
+{
+ public class PercentPlayedDrawer
+ {
+ private const int IndicatorHeight = 8;
+
+ public void Process(MagickWand wand, double percent)
+ {
+ var currentImage = wand.CurrentImage;
+ var height = currentImage.Height;
+
+ using (var draw = new DrawingWand())
+ {
+ using (PixelWand pixel = new PixelWand())
+ {
+ var endX = currentImage.Width - 1;
+ var endY = height - 1;
+
+ pixel.Color = "black";
+ pixel.Opacity = 0.4;
+ draw.FillColor = pixel;
+ draw.DrawRectangle(0, endY - IndicatorHeight, endX, endY);
+
+ double foregroundWidth = endX;
+ foregroundWidth *= percent;
+ foregroundWidth /= 100;
+
+ pixel.Color = "#52B54B";
+ pixel.Opacity = 0;
+ draw.FillColor = pixel;
+ draw.DrawRectangle(0, endY - IndicatorHeight, Convert.ToInt32(Math.Round(foregroundWidth)), endY);
+ wand.CurrentImage.DrawImage(draw);
+ }
+ }
+ }
+ }
+}
diff --git a/Emby.Drawing/PlayedIndicatorDrawer.cs b/Emby.Drawing/PlayedIndicatorDrawer.cs
new file mode 100644
index 0000000000..359065cc2e
--- /dev/null
+++ b/Emby.Drawing/PlayedIndicatorDrawer.cs
@@ -0,0 +1,86 @@
+using ImageMagickSharp;
+using MediaBrowser.Common.Configuration;
+using MediaBrowser.Model.Drawing;
+using System;
+using System.IO;
+
+namespace MediaBrowser.Server.Implementations.Drawing
+{
+ public class PlayedIndicatorDrawer
+ {
+ private const int FontSize = 52;
+ private const int OffsetFromTopRightCorner = 38;
+
+ private readonly IApplicationPaths _appPaths;
+
+ public PlayedIndicatorDrawer(IApplicationPaths appPaths)
+ {
+ _appPaths = appPaths;
+ }
+
+ public void DrawPlayedIndicator(MagickWand wand, ImageSize imageSize)
+ {
+ var x = imageSize.Width - OffsetFromTopRightCorner;
+
+ using (var draw = new DrawingWand())
+ {
+ using (PixelWand pixel = new PixelWand())
+ {
+ pixel.Color = "#52B54B";
+ pixel.Opacity = 0.2;
+ draw.FillColor = pixel;
+ draw.DrawCircle(x, OffsetFromTopRightCorner, x - 20, OffsetFromTopRightCorner - 20);
+
+ pixel.Opacity = 0;
+ pixel.Color = "white";
+ draw.FillColor = pixel;
+ draw.Font = ExtractFont("webdings.ttf", _appPaths);
+ draw.FontSize = FontSize;
+ draw.FontStyle = FontStyleType.NormalStyle;
+ draw.TextAlignment = TextAlignType.CenterAlign;
+ draw.FontWeight = FontWeightType.RegularStyle;
+ draw.TextAntialias = true;
+ draw.DrawAnnotation(x + 4, OffsetFromTopRightCorner + 14, "a");
+
+ draw.FillColor = pixel;
+ wand.CurrentImage.DrawImage(draw);
+ }
+ }
+ }
+
+ internal static string ExtractFont(string name, IApplicationPaths paths)
+ {
+ var filePath = Path.Combine(paths.ProgramDataPath, "fonts", name);
+
+ if (File.Exists(filePath))
+ {
+ return filePath;
+ }
+
+ var namespacePath = typeof(PlayedIndicatorDrawer).Namespace + ".fonts." + name;
+ var tempPath = Path.Combine(paths.TempDirectory, Guid.NewGuid().ToString("N") + ".ttf");
+ Directory.CreateDirectory(Path.GetDirectoryName(tempPath));
+
+ using (var stream = typeof(PlayedIndicatorDrawer).Assembly.GetManifestResourceStream(namespacePath))
+ {
+ using (var fileStream = new FileStream(tempPath, FileMode.Create, FileAccess.Write, FileShare.Read))
+ {
+ stream.CopyTo(fileStream);
+ }
+ }
+
+ Directory.CreateDirectory(Path.GetDirectoryName(filePath));
+
+ try
+ {
+ File.Copy(tempPath, filePath, false);
+ }
+ catch (IOException)
+ {
+
+ }
+
+ return tempPath;
+ }
+ }
+}
diff --git a/Emby.Drawing/UnplayedCountIndicator.cs b/Emby.Drawing/UnplayedCountIndicator.cs
new file mode 100644
index 0000000000..71cced0416
--- /dev/null
+++ b/Emby.Drawing/UnplayedCountIndicator.cs
@@ -0,0 +1,70 @@
+using ImageMagickSharp;
+using MediaBrowser.Common.Configuration;
+using MediaBrowser.Model.Drawing;
+using System.Globalization;
+
+namespace MediaBrowser.Server.Implementations.Drawing
+{
+ public class UnplayedCountIndicator
+ {
+ private const int OffsetFromTopRightCorner = 38;
+
+ private readonly IApplicationPaths _appPaths;
+
+ public UnplayedCountIndicator(IApplicationPaths appPaths)
+ {
+ _appPaths = appPaths;
+ }
+
+ public void DrawUnplayedCountIndicator(MagickWand wand, ImageSize imageSize, int count)
+ {
+ var x = imageSize.Width - OffsetFromTopRightCorner;
+ var text = count.ToString(CultureInfo.InvariantCulture);
+
+ using (var draw = new DrawingWand())
+ {
+ using (PixelWand pixel = new PixelWand())
+ {
+ pixel.Color = "#52B54B";
+ pixel.Opacity = 0.2;
+ draw.FillColor = pixel;
+ draw.DrawCircle(x, OffsetFromTopRightCorner, x - 20, OffsetFromTopRightCorner - 20);
+
+ pixel.Opacity = 0;
+ pixel.Color = "white";
+ draw.FillColor = pixel;
+ draw.Font = PlayedIndicatorDrawer.ExtractFont("robotoregular.ttf", _appPaths);
+ draw.FontStyle = FontStyleType.NormalStyle;
+ draw.TextAlignment = TextAlignType.CenterAlign;
+ draw.FontWeight = FontWeightType.RegularStyle;
+ draw.TextAntialias = true;
+
+ var fontSize = 30;
+ var y = OffsetFromTopRightCorner + 11;
+
+ if (text.Length == 1)
+ {
+ x += 1;
+ }
+ else if (text.Length == 2)
+ {
+ x += 1;
+ }
+ else if (text.Length >= 3)
+ {
+ //x += 1;
+ y -= 2;
+ fontSize = 24;
+ }
+
+ draw.FontSize = fontSize;
+ draw.DrawAnnotation(x, y, text);
+
+ draw.FillColor = pixel;
+ wand.CurrentImage.DrawImage(draw);
+ }
+
+ }
+ }
+ }
+}
diff --git a/Emby.Drawing/packages.config b/Emby.Drawing/packages.config
new file mode 100644
index 0000000000..f1efe6e1c8
--- /dev/null
+++ b/Emby.Drawing/packages.config
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+ <package id="ImageMagickSharp" version="1.0.0.13" targetFramework="net45" />
+</packages> \ No newline at end of file