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Fixed high memory usage and slow image encoding times for user images

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LD-Reborn
2025-11-20 15:14:06 +01:00
parent a80c4ba8fe
commit 6be72c1f5c
1 changed files with 10 additions and 9 deletions
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19
src/Helpers/ImageHelper.cs
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@@ -1,11 +1,7 @@
using SixLabors.ImageSharp; using SixLabors.ImageSharp;
using SixLabors.ImageSharp.Processing; using SixLabors.ImageSharp.Processing;
using SixLabors.ImageSharp.Formats.Jpeg;
using System.IO;
using SixLabors.ImageSharp.Formats.Gif;
using SixLabors.ImageSharp.Processing.Processors.Quantization;
using SixLabors.ImageSharp.Formats.Png;
using SixLabors.ImageSharp.Formats.Webp; using SixLabors.ImageSharp.Formats.Webp;
using SixLabors.ImageSharp.Formats;
namespace Berufsschule_HAM.Helpers; namespace Berufsschule_HAM.Helpers;
@@ -14,9 +10,14 @@ public static class ImageHelper
public static string ResizeAndConvertToBase64(byte[] imageBytes, int size = 32) public static string ResizeAndConvertToBase64(byte[] imageBytes, int size = 32)
{ {
using var inputStream = new MemoryStream(imageBytes); using var inputStream = new MemoryStream(imageBytes);
using var image = Image.Load(inputStream);
// Optional: crop to square before resize var decoderOptions = new DecoderOptions
{
TargetSize = new Size(size, size)
};
using var image = Image.Load(decoderOptions, inputStream);
int minDimension = Math.Min(image.Width, image.Height); int minDimension = Math.Min(image.Width, image.Height);
var cropRectangle = new Rectangle( var cropRectangle = new Rectangle(
(image.Width - minDimension) / 2, (image.Width - minDimension) / 2,
@@ -35,7 +36,7 @@ public static class ImageHelper
}); });
using var outputStream = new MemoryStream(); using var outputStream = new MemoryStream();
image.Save(outputStream, new WebpEncoder(){}); image.Save(outputStream, new WebpEncoder());
return Convert.ToBase64String(outputStream.ToArray()); return Convert.ToBase64String(outputStream.GetBuffer(), 0, (int)outputStream.Length);
} }
} }