public void TestGetYCbCrSubsamplingDescription()
{
var directory = new ExifThumbnailDirectory();
directory.Set(ExifDirectoryBase.TagYcbcrSubsampling, new[] { 2, 1 });
var descriptor = new ExifThumbnailDescriptor(directory);
Assert.Equal("YCbCr4:2:2", descriptor.GetDescription(ExifDirectoryBase.TagYcbcrSubsampling));
Assert.Equal("YCbCr4:2:2", descriptor.GetYCbCrSubsamplingDescription());
directory.Set(ExifDirectoryBase.TagYcbcrSubsampling, new[] { 2, 2 });
Assert.Equal("YCbCr4:2:0", descriptor.GetDescription(ExifDirectoryBase.TagYcbcrSubsampling));
Assert.Equal("YCbCr4:2:0", descriptor.GetYCbCrSubsamplingDescription());
}
public virtual void TestGetYCbCrSubsamplingDescription()
{
ExifThumbnailDirectory directory = new ExifThumbnailDirectory();
directory.SetIntArray(ExifThumbnailDirectory.TagYcbcrSubsampling, new int[] { 2, 1 });
ExifThumbnailDescriptor descriptor = new ExifThumbnailDescriptor(directory);
Sharpen.Tests.AreEqual("YCbCr4:2:2", descriptor.GetDescription(ExifThumbnailDirectory.TagYcbcrSubsampling));
Sharpen.Tests.AreEqual("YCbCr4:2:2", descriptor.GetYCbCrSubsamplingDescription());
directory.SetIntArray(ExifThumbnailDirectory.TagYcbcrSubsampling, new int[] { 2, 2 });
Sharpen.Tests.AreEqual("YCbCr4:2:0", descriptor.GetDescription(ExifThumbnailDirectory.TagYcbcrSubsampling));
Sharpen.Tests.AreEqual("YCbCr4:2:0", descriptor.GetYCbCrSubsamplingDescription());
}
public void GetYCbCrSubsamplingDescription()
{
var directory = new ExifThumbnailDirectory();
var descriptor = new ExifThumbnailDescriptor(directory);
directory.Set(ExifDirectoryBase.TagYCbCrSubsampling, new[] { 2, 1 });
Assert.Equal("YCbCr4:2:2", descriptor.GetDescription(ExifDirectoryBase.TagYCbCrSubsampling));
Assert.Equal("YCbCr4:2:2", descriptor.GetYCbCrSubsamplingDescription());
directory.Set(ExifDirectoryBase.TagYCbCrSubsampling, new[] { 2, 2 });
Assert.Equal("YCbCr4:2:0", descriptor.GetDescription(ExifDirectoryBase.TagYCbCrSubsampling));
Assert.Equal("YCbCr4:2:0", descriptor.GetYCbCrSubsamplingDescription());
}
private static Tuple <string, string, string[]> AlternativeReadingMetadataMethod(IFileSystem fileSystem, string filePath)
{
using var fs = fileSystem.File.OpenRead(filePath);
var metadata = (JpegMetadataReader.ReadMetadata(fs));
var iFD0Directory = metadata.OfType <ExifIfd0Directory>().FirstOrDefault();
var exifIfd0Descriptor = new ExifIfd0Descriptor(iFD0Directory);
var Ifd0Description = exifIfd0Descriptor.GetDescription(ExifIfd0Directory.TagImageDescription);
var Ifd0Keywords = exifIfd0Descriptor.GetDescription(ExifIfd0Directory.TagWinKeywords);
var Ifd0Title = exifIfd0Descriptor.GetDescription(ExifIfd0Directory.TagWinTitle);
//var subIfdDirectory = metadata.OfType<ExifSubIfdDirectory>().FirstOrDefault();
//var subIfdDescriptor = new ExifSubIfdDescriptor(subIfdDirectory);
// returns something like 4261 pixels
//var dagExifImageWidth = subIfdDescriptor.GetDescription(ExifDirectoryBase.TagExifImageWidth);
//var dagExifImageHeight = subIfdDescriptor.GetDescription(ExifDirectoryBase.TagExifImageHeight);
var thumbnailDirectory = metadata.OfType <ExifThumbnailDirectory>().FirstOrDefault();
var thumbnailDescriptor = new ExifThumbnailDescriptor(thumbnailDirectory);
var thumbnailOffset = thumbnailDescriptor.GetDescription(ExifThumbnailDirectory.TagThumbnailOffset);
var thumbnailYResolution = thumbnailDescriptor.GetDescription(ExifThumbnailDirectory.TagYResolution);
var thumbnailXResolution = thumbnailDescriptor.GetDescription(ExifThumbnailDirectory.TagXResolution);
var thumbnailLength = thumbnailDescriptor.GetDescription(ExifThumbnailDirectory.TagThumbnailLength);
var thumbnailCompression = thumbnailDescriptor.GetDescription(ExifThumbnailDirectory.TagCompression);
var IPTCDirectory = metadata.OfType <IptcDirectory>().FirstOrDefault();
var iptcDescriptor = new IptcDescriptor(IPTCDirectory);
var IPTCDescription = iptcDescriptor.GetDescription(IptcDirectory.TagCaption);
var IPTCKeywords = iptcDescriptor.GetDescription(IptcDirectory.TagKeywords); // like "TestFile1Kw1;TestFile1Kw2;TestFile1Kw3;TestFile1Kw4"
var IPTCTitle = iptcDescriptor.GetDescription(IptcDirectory.TagObjectName);
var keywordsAsString = string.IsNullOrWhiteSpace(Ifd0Keywords) ? IPTCKeywords : Ifd0Keywords;
var arrayOrKeywords = keywordsAsString?.Split(';');
var title = string.IsNullOrWhiteSpace(Ifd0Title) ? IPTCTitle : Ifd0Title;
var description = string.IsNullOrWhiteSpace(Ifd0Description) ? IPTCDescription : Ifd0Description;
return(new Tuple <string, string, string[]>(title, description, arrayOrKeywords));
}
