internal static PdfJsJpegDecoderCore ParsePdfJsStream(string testFileName, bool metaDataOnly = false)
{
byte[] bytes = TestFile.Create(testFileName).Bytes;
using (var ms = new MemoryStream(bytes))
{
var decoder = new PdfJsJpegDecoderCore(Configuration.Default, new JpegDecoder());
decoder.ParseStream(ms, metaDataOnly);
return(decoder);
}
}
public void ParseStream_BasicPropertiesAreCorrect1_PdfJs()
{
byte[] bytes = TestFile.Create(TestImages.Jpeg.Progressive.Progress).Bytes;
using (var ms = new MemoryStream(bytes))
{
var decoder = new PdfJsJpegDecoderCore(Configuration.Default, new JpegDecoder());
decoder.ParseStream(ms);
VerifyJpeg.VerifyComponentSizes3(decoder.Frame.Components, 43, 61, 22, 31, 22, 31);
}
}
public void ParseStreamPdfJs()
{
using (var memoryStream = new MemoryStream(this.jpegBytes))
{
var decoder = new PdfJsJpegDecoderCore(Configuration.Default, new JpegDecoder()
{
IgnoreMetadata = true
});
decoder.ParseStream(memoryStream);
decoder.Dispose();
}
}
public void ParseStream_BasicPropertiesAreCorrect1_PdfJs()
{
byte[] bytes = TestFile.Create(TestImages.Jpeg.Progressive.Progress).Bytes;
using (var ms = new MemoryStream(bytes))
{
var decoder = new PdfJsJpegDecoderCore(Configuration.Default, new JpegDecoder());
decoder.ParseStream(ms);
// I don't know why these numbers are different. All I know is that the decoder works
// and spectral data is exactly correct also.
// VerifyJpeg.VerifyComponentSizes3(decoder.Frame.Components, 43, 61, 22, 31, 22, 31);
VerifyJpeg.VerifyComponentSizes3(decoder.Frame.Components, 44, 62, 22, 31, 22, 31);
}
}
public void PdfJsDecoder_ParseStream_SaveSpectralResult <TPixel>(TestImageProvider <TPixel> provider)
where TPixel : struct, IPixel <TPixel>
{
PdfJsJpegDecoderCore decoder = new PdfJsJpegDecoderCore(Configuration.Default, new JpegDecoder());
byte[] sourceBytes = TestFile.Create(provider.SourceFileOrDescription).Bytes;
using (var ms = new MemoryStream(sourceBytes))
{
decoder.ParseStream(ms);
var data = LibJpegTools.SpectralData.LoadFromImageSharpDecoder(decoder);
VerifyJpeg.SaveSpectralImage(provider, data);
}
}
public void VerifySpectralCorrectness_PdfJs <TPixel>(TestImageProvider <TPixel> provider)
where TPixel : struct, IPixel <TPixel>
{
if (!TestEnvironment.IsWindows)
{
return;
}
PdfJsJpegDecoderCore decoder = new PdfJsJpegDecoderCore(Configuration.Default, new JpegDecoder());
byte[] sourceBytes = TestFile.Create(provider.SourceFileOrDescription).Bytes;
using (var ms = new MemoryStream(sourceBytes))
{
decoder.ParseStream(ms);
var imageSharpData = LibJpegTools.SpectralData.LoadFromImageSharpDecoder(decoder);
this.VerifySpectralCorrectness <TPixel>(provider, imageSharpData);
}
}