public static TiffIfdReference?GetExifIfdReference(TiffIfd ifd, ByteOrder byteOrder)
{
var exifEntry = TiffReader.GetTiffIfdEntry(ifd, TiffTags.ExifIFD);
if (exifEntry == null)
{
return(null);
}
else
{
return(exifEntry.Value.GetIfdReference(byteOrder));
}
}
public void GetIfdEntry_ReturnsNullIfTagIsNotPresent()
{
var ifd = new TiffIfd
{
Entries = new[]
{
new TiffIfdEntry {
Tag = 10, Type = TiffType.Long, Count = 5
},
new TiffIfdEntry {
Tag = 15, Type = TiffType.Ascii, Count = 10
},
new TiffIfdEntry {
Tag = 20, Type = TiffType.Byte, Count = 15
}
}
};
var entry = TiffReader.GetTiffIfdEntry(ifd, 18);
Assert.Null(entry);
}
public void GetIfdEntry_ReturnsEntryByTag()
{
var ifd = new TiffIfd
{
Entries = new[]
{
new TiffIfdEntry {
Tag = 10, Type = TiffType.Long, Count = 5
},
new TiffIfdEntry {
Tag = 15, Type = TiffType.Ascii, Count = 10
},
new TiffIfdEntry {
Tag = 20, Type = TiffType.Byte, Count = 15
}
}
};
var entry = TiffReader.GetTiffIfdEntry(ifd, 15).Value;
Assert.Equal(15, entry.Tag);
Assert.Equal(TiffType.Ascii, entry.Type);
Assert.Equal(10, entry.Count);
}