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Add BlurHash support to backend

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This commit is contained in:
Jesús Higueras
2020-03-23 20:05:49 +01:00
committed by Vasily
parent 2d2c1d9473
commit b9fc0d2628
14 changed files with 149 additions and 5 deletions
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2
Jellyfin.Drawing.Skia/Jellyfin.Drawing.Skia.csproj
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@@ -21,6 +21,8 @@
<PackageReference Include="SkiaSharp" Version="1.68.1" />
<PackageReference Include="SkiaSharp.NativeAssets.Linux" Version="1.68.1" />
<PackageReference Include="Jellyfin.SkiaSharp.NativeAssets.LinuxArm" Version="1.68.1" />
<PackageReference Include="Blurhash.Core" Version="*" />
</ItemGroup>
<ItemGroup>

48
Jellyfin.Drawing.Skia/SkiaEncoder.cs
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@@ -1,7 +1,11 @@
using System;
using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Threading.Tasks;
using Blurhash.Core;
using MediaBrowser.Common.Configuration;
using MediaBrowser.Controller.Drawing;
using MediaBrowser.Controller.Extensions;
@@ -15,7 +19,7 @@ namespace Jellyfin.Drawing.Skia
/// <summary>
/// Image encoder that uses <see cref="SkiaSharp"/> to manipulate images.
/// </summary>
public class SkiaEncoder : IImageEncoder
public class SkiaEncoder : CoreEncoder, IImageEncoder
{
private static readonly HashSet<string> _transparentImageTypes
= new HashSet<string>(StringComparer.OrdinalIgnoreCase) { ".png", ".gif", ".webp" };
@@ -229,6 +233,48 @@ namespace Jellyfin.Drawing.Skia
}
}
/// <inheritdoc />
/// <exception cref="ArgumentNullException">The path is null.</exception>
/// <exception cref="FileNotFoundException">The path is not valid.</exception>
/// <exception cref="SkiaCodecException">The file at the specified path could not be used to generate a codec.</exception>
[SuppressMessage("Microsoft.Performance", "CA1814:PreferJaggedArraysOverMultidimensional")]
public string GetImageHash(string path)
{
if (path == null)
{
throw new ArgumentNullException(nameof(path));
}
if (!File.Exists(path))
{
throw new FileNotFoundException("File not found", path);
}
using (var bitmap = GetBitmap(path, false, false, null))
{
if (bitmap == null)
{
throw new ArgumentOutOfRangeException($"Skia unable to read image {path}");
}
var width = bitmap.Width;
var height = bitmap.Height;
var pixels = new Pixel[width, height];
Parallel.ForEach(Enumerable.Range(0, height), y =>
{
for (var x = 0; x < width; x++)
{
var color = bitmap.GetPixel(x, y);
pixels[x, y].Red = MathUtils.SRgbToLinear(color.Red);
pixels[x, y].Green = MathUtils.SRgbToLinear(color.Green);
pixels[x, y].Blue = MathUtils.SRgbToLinear(color.Blue);
}
});
return CoreEncode(pixels, 4, 4);
}
}
private static bool HasDiacritics(string text)
=> !string.Equals(text, text.RemoveDiacritics(), StringComparison.Ordinal);