public override IOptimizerResult Optimize(MediaStream stream)
{
var quantizer = new WuQuantizer();
var memoryStream = new MemoryStream();
using (var bitmap = new Bitmap(stream.Stream))
{
var bitDepth = Image.GetPixelFormatSize(bitmap.PixelFormat);
if (bitDepth != 32)
{
return OptimizerFailureResult("the image you are attempting to quantize does not contain a 32 bit ARGB palette. This image has a bit depth of {0} with {1} colors".FormatWith(bitDepth, bitmap.Palette.Entries.Length));
}
using (var quantized = quantizer.QuantizeImage(bitmap))
{
quantized.Save(memoryStream, ImageFormat.Png);
}
// rewind the stream
memoryStream.Seek(0, SeekOrigin.Begin);
var result = new PngQuantOptimizerResult();
result.Success = true;
result.SizeBefore = (int)stream.Length;
result.SizeAfter = (int)memoryStream.Length;
result.ResultStream = memoryStream;
return OptimizationSuccessful(result);
}
}
public override IOptimizerResult Optimize(MediaStream stream)
{
var quantizer = new WuQuantizer();
var memoryStream = new MemoryStream();
using (var bitmap = new Bitmap(stream.Stream))
{
var bitDepth = Image.GetPixelFormatSize(bitmap.PixelFormat);
if (bitDepth != 32)
{
return(OptimizerFailureResult("the image you are attempting to quantize does not contain a 32 bit ARGB palette. This image has a bit depth of {0} with {1} colors".FormatWith(bitDepth, bitmap.Palette.Entries.Length)));
}
using (var quantized = quantizer.QuantizeImage(bitmap))
{
quantized.Save(memoryStream, ImageFormat.Png);
}
// rewind the stream
memoryStream.Seek(0, SeekOrigin.Begin);
var result = new PngQuantOptimizerResult();
result.Success = true;
result.SizeBefore = (int)stream.Length;
result.SizeAfter = (int)memoryStream.Length;
result.ResultStream = memoryStream;
return(OptimizationSuccessful(result));
}
}
private IOptimizerResult OptimizerFailureResult(string message)
{
var result = new PngQuantOptimizerResult()
{
Success = false,
ErrorMessage = message
};
return result;
}
private IOptimizerResult OptimizerFailureResult(string message)
{
var result = new PngQuantOptimizerResult()
{
Success = false,
ErrorMessage = message
};
return(result);
}