public void CanReadTiffHeader(string filename, uint firstIfdOffset)
{
using (var stream = new FileStream(filename, FileMode.Open, FileAccess.Read, FileShare.Read))
{
var tiffStream = new TiffStreamReader(stream);
var ifd0 = tiffStream.ReadHeader();
Assert.Equal(firstIfdOffset, ifd0);
}
}
public void CanReadIFDFromFixedOffset(string filename, int offset, bool bigEndian, int tagCount)
{
using (var stream = new FileStream(filename, FileMode.Open, FileAccess.Read, FileShare.Read))
{
var tiffStream = new TiffStreamReader(stream);
var ifd0 = tiffStream.ReadIFD(8);
Assert.Equal(23, ifd0.tags.Length);
}
}
public void CanReadRawIFD0Tags(string filename, int firstIfdTags, uint nextIfdOffset)
{
using (var stream = new FileStream(filename, FileMode.Open, FileAccess.Read, FileShare.Read))
{
var tiffStream = new TiffStreamReader(stream);
var ifd0 = tiffStream.ReadIFD(tiffStream.ReadHeader());
Assert.Equal(firstIfdTags, ifd0.tags.Length);
Assert.Equal(nextIfdOffset, ifd0.nextIfd);
}
}
public void CanLoadStrips(string filename, int stripCount, int firstStripLen)
{
using (var stream = new FileStream(filename, FileMode.Open, FileAccess.Read, FileShare.Read))
{
var tiffStream = new TiffStreamReader(stream);
var strips = tiffStream.ReadStrips(8);
Assert.Equal(stripCount, strips.Length);
Assert.Equal(firstStripLen, strips[0].ImageData.Length);
}
}
public void CanParseIFD0Tags()
{
using (var stream = new FileStream(SamplesList.LAB, FileMode.Open, FileAccess.Read, FileShare.Read))
{
var tiffStream = new TiffStreamReader(stream);
var ifd0 = tiffStream.ParseIFD(tiffStream.ReadHeader());
Assert.Equal("NIKON D90", ifd0.tags[7].GetString());
Assert.Equal(8, ifd0.tags[3].GetValue <short>(2));
Assert.Equal(2991224u, ifd0.tags[22].GetValue <uint>(0));
}
}
public void CanReadExifBlock()
{
using (var stream = new FileStream(SamplesList.LAB, FileMode.Open, FileAccess.Read, FileShare.Read))
{
var tiffStream = new TiffStreamReader(stream);
var exif = tiffStream.ParseIFD(2991224);
Assert.Equal(36, exif.tags.Length);
Assert.Equal(0u, exif.nextIfd);
Assert.Equal((short)400, exif.tags.Where(t => t.ID == (ushort)Tags.ExifTags.ISOSpeedRatings).First().GetValue <short>(0));
}
}
