Image resizing while maintaining the aspect ratio (downsizing)

[alexey-leonovich]

Hello. I have a function which resizes an image while maintaining the aspect ratio. For example if I need to resize 5760x3840 image to maximum 480x480 pixels - resized image would be 480x320. I use the following code (I use latest SkiaSharp 3.116.1):

using (var codec = SKCodec.Create(sourcePath))
using (var sourceBitmap = SKBitmap.Decode(sourcePath))
{
    var resizeFactorWidth = (float)maxWidth / sourceBitmap.Width;
    var resizeFactorHeight = (float)maxHeight / sourceBitmap.Height;
    var resizeFactor = Math.Min(resizeFactorWidth, resizeFactorHeight);
    var scaledWidth = (int)(sourceBitmap.Width * resizeFactor);
    var scaledHeight = (int)(sourceBitmap.Height * resizeFactor);

    var outputFilePath = Path.Combine(Path.GetDirectoryName(sourcePath), $"resized{Path.GetExtension(sourcePath)}");

    using (SKBitmap scaledBitmap = sourceBitmap.Resize(new SKImageInfo(scaledWidth, scaledHeight), SKFilterQuality.High))
    using (SKImage scaledImage = SKImage.FromBitmap(scaledBitmap))
    using (var data = scaledImage.Encode(codec.EncodedFormat, 100))
    using (var stream = new FileStream(outputFilePath, FileMode.Create, FileAccess.Write))
    {
        data.SaveTo(stream);
    }
}

1. This code looks too complicated. Is there a special setting like PreserveAspectRation or something not to calculate scaledWidth and scaledHeight manually?
2. SKFilterQuality is obsolete in SkiaSharp 3.116.1, what is SKSamplingOptions variant equivalent to SKFilterQuality.High?
   Thank you in advance.