Performance in Writing to Stream / Bytes

[Workaholic01]

Hi Everyone,

I have recently started using Magick.Net and I like it so far. I am facing a performance issue while converting an image format to AVIF. It is taking too much time to write it back to stream.

I am converting a jpeg image to avif format and applying watermark on it. Below is my code.

public static byte[] Format(byte[] blob, ImageFormats desiredFormat)
{
    using (MemoryStream inputStream = new MemoryStream(blob))
    {
        using (MemoryStream outputStream = new MemoryStream())
        {
            using (MagickImage image = new MagickImage(inputStream))
            {
                switch(desiredFormat)
                {
                    case ImageFormats.AVIF:

                        //image.Write(outputStream, MagickFormat.Avif);
                        var returnStream = AddWatermarkToImage(image);
                        //image.Write(outputStream, MagickFormat.Avif);
                        break;

                    case ImageFormats.JPG:
                        image.Write(outputStream, MagickFormat.Jpeg);
                        break;

                    case ImageFormats.WEBP:
                        image.Write(outputStream, MagickFormat.WebP);
                        break;
                    default:
                        image.Write(outputStream, MagickFormat.Avif);
                        break;

                }
                return outputStream.ToArray();

            }
        }
    }
}

And here is my Apply Watermark Method

private static MemoryStream AddWatermarkToImage(MagickImage image)
{
        using (MagickImage watermark = new MagickImage("~/logo.png"))
        {
            // Apply the watermark
            image.Composite(watermark, 100, 100, CompositeOperator.Over);
        }


    var resultStream = new MemoryStream();
    image.Write(resultStream, MagickFormat.Avif);
    resultStream.Position = 0; // Reset the stream position for reading
    return resultStream;       
}

I took around 12s at this image.Write(resultStream, MagickFormat.Avif);

Any help would be appreciated. Attaching the sample Image I am trying to use as well.

[dlemstra]

There is not much you can do about this. For a lot of formats the encoding takes more time than decoding. It is also possible that it takes longer because of this input image.