public static Task <int> Optimize(FileInfo source, FileInfo output)
{
using var bytes = new MemoryPoolBufferWriter();
using (FileStream stream = source.OpenRead())
{
ReadAllBytes(stream, bytes);
}
var optimizer = new JpegOptimizer();
optimizer.SetInput(bytes.GetReadOnlySequence());
optimizer.Scan();
using var writer = new MemoryPoolBufferWriter();
optimizer.SetOutput(writer);
optimizer.Optimize();
using (FileStream stream = output.OpenWrite())
{
WriteAllBytes(writer.GetReadOnlySequence(), stream);
}
return(Task.FromResult(0));
}
public void TestOptimize(string path, bool strip)
{
byte[] jpegBytes = File.ReadAllBytes(path);
using var refImage = Image.Load <Rgb24>(path);
var optimizer = new JpegOptimizer();
optimizer.SetInput(jpegBytes);
optimizer.Scan();
var buffer = new ArrayBufferWriter <byte>();
optimizer.SetOutput(buffer);
optimizer.Optimize(strip);
Assert.True(buffer.WrittenCount < jpegBytes.Length);
using var testImage = Image.Load <Rgb24>(buffer.WrittenSpan);
AssertEqual(refImage, testImage);
}
