private Task EncodeImageAsync <TPixel>(ImageFrame <TPixel> image, TiffImageFileDirectoryWriter ifdWriter, CancellationToken cancellationToken) where TPixel : unmanaged, IPixel <TPixel>
{
ITiffEncoderOptions options = _options;
var builder = new TiffImageEncoderBuilder();
builder.MemoryPool = _memoryPool;
builder.PhotometricInterpretation = options.PhotometricInterpretation;
builder.Compression = options.Compression;
builder.IsTiled = options.IsTiled;
builder.RowsPerStrip = options.RowsPerStrip;
builder.TileSize = new TiffSize(options.TileSize.Width, options.TileSize.Height);
builder.Predictor = options.Predictor;
builder.EnableTransparencyForRgb = options.EnableTransparencyForRgb;
builder.Orientation = options.Orientation;
builder.DeflateCompressionLevel = options.DeflateCompressionLevel;
builder.JpegOptions = new TiffJpegEncodingOptions {
Quality = options.JpegQuality, OptimizeCoding = options.JpegOptimizeCoding
};
builder.HorizontalChromaSubSampling = options.HorizontalChromaSubSampling;
builder.VerticalChromaSubSampling = options.VerticalChromaSubSampling;
TiffImageEncoder <TPixel> encoder = builder.BuildForImageSharp <TPixel>();
return(encoder.EncodeAsync(ifdWriter, image, cancellationToken));
}
public DeepZoomRipper(DeepZoomRipperOptions options, HttpClientInitializationOptions httpClientInitializationOptions, string outputFile)
{
_options = options = options ?? DeepZoomRipperOptions.Default;
if (httpClientInitializationOptions == HttpClientInitializationOptions.InitializeWithCookieContainer)
{
_cookieContainer = new CookieContainer();
HttpClientHandler handler = new HttpClientHandler
{
CookieContainer = _cookieContainer
};
_http = new HttpClient(handler)
{
Timeout = Timeout.InfiniteTimeSpan
};
}
else if (httpClientInitializationOptions == HttpClientInitializationOptions.InitializeWithoutCookieContainer)
{
_http = new HttpClient()
{
Timeout = Timeout.InfiniteTimeSpan
};
}
_outputFile = outputFile;
_configuration = Configuration.Default.Clone();
_configuration.MaxDegreeOfParallelism = 1;
var builder = new TiffImageEncoderBuilder();
builder.PhotometricInterpretation = TiffPhotometricInterpretation.YCbCr;
builder.IsTiled = true;
builder.TileSize = new TiffSize(OutputTileSize, OutputTileSize);
builder.HorizontalChromaSubSampling = 2;
builder.VerticalChromaSubSampling = 2;
builder.Compression = TiffCompression.Jpeg;
builder.JpegOptions = new TiffJpegEncodingOptions {
OptimizeCoding = true
};
_encoder = builder.BuildForImageSharp <Rgb24>();
}