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public unsafe static class Accelerate
    {
        [StructLayout(LayoutKind.Sequential)]
        public struct DSPComplex
        {
            public float real;
            public float imag;
        }

        [StructLayout(LayoutKind.Sequential)]

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CVPixelBuffer GetBuffer(CGImage image)
{
	const int _bitsPerPixel = 8;
	nint width = (nint)image.Width;
	nint height = (nint)image.Height;
	nint bytesPerRow = (nint)image.BytesPerRow;
	var	bufferData = new byte[height * bytesPerRow];
	var colorspace = image.ColorSpace;
	var bmi = image.BitmapInfo;

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static NSData JpegData(this CGImage cgImage, float compressionQuality)
{
	var data = NSMutableData.Create();

	var idst = CGImageDestination.Create(data, "UTTypeJPEG", 1, null);
	if (idst != null)
	{
		var props = NSDictionary.FromObjectsAndKeys(
			new[] { NSNumber.FromFloat(compressionQuality) },
			new[] { CGImageDestinationOptionsKeys.LossyCompressionQuality }