48 lines
1.3 KiB
C#
48 lines
1.3 KiB
C#
using SkiaSharp;
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namespace MyDarling.Services
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{
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public class ImageResizer : IImageResizer
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{
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public void CreateThumbnail(string inputPath)
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{
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using var input = File.OpenRead(inputPath);
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using var inputStream = new SKManagedStream(input);
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var outputPath = Path.GetDirectoryName(inputPath) + "/" +
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Path.GetFileNameWithoutExtension(inputPath) + "_thumb.jpg";
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WriteResized(inputStream, 600, outputPath);
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}
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public void WriteResized(IFormFile formFile, string outputFilePath)
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{
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SKManagedStream stream = new(formFile.OpenReadStream());
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WriteResized(stream, 2000, outputFilePath);
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}
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private void WriteResized(SKManagedStream stream, int size, string outputFilePath)
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{
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int quality = 95;
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var skData = SKData.Create(stream);
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using var original = SKBitmap.Decode(skData);
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int width, height;
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if (original.Width > original.Height)
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{
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width = size;
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height = original.Height * size / original.Width;
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}
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else
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{
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width = original.Width * size / original.Height;
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height = size;
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}
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using var resized = original.Resize(new SKImageInfo(width, height), SKFilterQuality.High);
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if (resized == null) return;
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using var image = SKImage.FromBitmap(resized);
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using var output = File.OpenWrite(outputFilePath);
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image.Encode(SKEncodedImageFormat.Jpeg, quality).SaveTo(output);
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}
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}
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} |