Crashes on indexed images.

[chico-ubuntu]

It crashes on indexed images. I believe the issue lies here in Encode(Bitmap b, float quality, out IntPtr result, out long length)
using (Bitmap b2 = b.Clone(new Rectangle(0, 0, b.Width, b.Height), System.Drawing.Imaging.PixelFormat.Format32bppArgb))
{
Encode(b2, quality, out result, out length);
}
I've created a workaround that works nicely which is
if (b.PixelFormat.HasFlag(PixelFormat.Indexed))
{
using (var bitmap = new Bitmap(b.Width, b.Height, PixelFormat.Format32bppArgb))
{
using (var graphics = Graphics.FromImage(bitmap))
{
graphics.DrawImageUnscaled(b, 0, 0, b.Width, b.Height);
}
//this is using the stream to. it would have to be revised to reflect your out params
Encode(bitmap, to, quality);
}
}