public void Load()
{
string path = CreateFile();
using (Stream stream = File.OpenRead(path)) {
JpegHeader jhead = new JpegHeader(stream);
Assert.AreEqual(((Marker)jhead.Markers [0]).Type, JpegMarker.Soi);
Assert.AreEqual(((Marker)jhead.Markers [1]).GetName(), "JFIF");
Assert.AreEqual(((Marker)jhead.Markers [1]).Type, JpegMarker.App0);
Assert.AreEqual(((Marker)jhead.Markers [2]).GetName(), "Exif");
Assert.AreEqual(((Marker)jhead.Markers [2]).Type, JpegMarker.App1);
// NOTE the currently we don't store the Eoi as the last marker
Assert.AreEqual(((Marker)jhead.Markers [jhead.Markers.Count - 1]).Type, JpegMarker.Sos);
// NOTE this is kind of sill but it might help
Assert.IsTrue(Math.Abs(jhead.GuessQuality() - quality) <= 1);
Assert.IsNotNull(jhead.GetExifHeader());
}
File.Delete(path);
}
private void AddExifProperties(JpegHeader header)
{
Tiff.Header ifd = header.GetExifHeader();
if (ifd == null)
{
return;
}
//ifd.Dump ("foo"); // Uncomment to debug
string str;
Tiff.DirectoryEntry entry;
// Add IFD 0 properies
str = GetExifString(ifd.Directory, Tiff.TagId.Model);
AddProperty(Beagle.Property.New("exif:Model", str));
str = GetExifString(ifd.Directory, Tiff.TagId.ImageDescription);
AddProperty(Beagle.Property.New("exif:ImageDescription", str));
try {
entry = ifd.Directory.Lookup(Tiff.TagId.DateTime);
if (entry != null)
{
// Assume datetime stored in the images are local times
AddProperty(Beagle.Property.NewDate("exif:DateTime", entry.ValueAsDate.ToUniversalTime()));
}
} catch (FormatException) {
Logger.Log.Debug("EXIF DateTime '{0}' is invalid.", GetExifString(ifd.Directory, Tiff.TagId.DateTime));
} catch (ArgumentOutOfRangeException) {
Logger.Log.Debug("EXIF DateTime '{0}' is invalid.", GetExifString(ifd.Directory, Tiff.TagId.DateTime));
}
str = GetExifString(ifd.Directory, Tiff.TagId.Copyright);
AddProperty(Beagle.Property.New("dc:rights", str));
// Add IFD 1 properties
Tiff.SubdirectoryEntry subdir = (Tiff.SubdirectoryEntry)ifd.Directory.Lookup(Tiff.TagId.ExifIfdPointer);
if (subdir == null)
{
return;
}
Tiff.ImageDirectory exif = subdir.Directory [0];
if (exif == null)
{
return;
}
entry = exif.Lookup(Tiff.TagId.UserComment);
if (entry != null)
{
AddProperty(Beagle.Property.New("exif:UserComment", entry.UserCommentValue));
}
uint val = 0;
entry = exif.Lookup(Tiff.TagId.PixelXDimension);
if (entry != null)
{
val = entry.ValueAsLong [0];
}
if (val > 0)
{
Width = (int)val;
AddProperty(Beagle.Property.NewUnsearched("exif:PixelXDimension", val));
}
val = 0;
entry = exif.Lookup(Tiff.TagId.PixelYDimension);
if (entry != null)
{
val = entry.ValueAsLong [0];
}
if (val > 0)
{
Height = (int)val;
AddProperty(Beagle.Property.NewUnsearched("exif:PixelYDimension", val));
}
str = GetExifString(exif, Tiff.TagId.ISOSpeedRatings);
AddProperty(Beagle.Property.NewUnsearched("exif:ISOSpeedRatings", str));
str = GetExifString(exif, Tiff.TagId.ShutterSpeedValue);
AddProperty(Beagle.Property.NewUnsearched("exif:ShutterSpeedValue", str));
str = GetExifString(exif, Tiff.TagId.ExposureTime);
if (!String.IsNullOrEmpty(str))
{
AddProperty(Beagle.Property.NewUnsearched("exif:ExposureTime", str + " sec."));
}
double rational_val;
rational_val = GetExifRational(exif, Tiff.TagId.FNumber);
if (rational_val > 0)
{
AddProperty(Beagle.Property.NewUnsearched("exif:FNumber", String.Format("f/{0}", rational_val)));
}
rational_val = GetExifRational(exif, Tiff.TagId.ApertureValue);
if (rational_val > 0)
{
AddProperty(Beagle.Property.NewUnsearched("exif:ApertureValue", rational_val));
}
rational_val = GetExifRational(exif, Tiff.TagId.FocalLength);
if (rational_val > 0)
{
AddProperty(Beagle.Property.NewUnsearched("exif:FocalLength", String.Format("{0} mm", rational_val)));
}
entry = exif.Lookup(Tiff.TagId.Flash);
if (entry != null)
{
ushort flash = entry.ShortValue [0];
AddProperty(Beagle.Property.NewUnsearched("exif:Flash", GetFlashString(flash)));
}
}
public void Load ()
{
string path = CreateFile ();
using (Stream stream = File.OpenRead (path)) {
JpegHeader jhead = new JpegHeader (stream);
Assert.AreEqual (((Marker)jhead.Markers [0]).Type, JpegMarker.Soi);
Assert.AreEqual (((Marker)jhead.Markers [1]).GetName (), "JFIF");
Assert.AreEqual (((Marker)jhead.Markers [1]).Type, JpegMarker.App0);
Assert.AreEqual (((Marker)jhead.Markers [2]).GetName (), "Exif");
Assert.AreEqual (((Marker)jhead.Markers [2]).Type, JpegMarker.App1);
// NOTE the currently we don't store the Eoi as the last marker
Assert.AreEqual (((Marker)jhead.Markers [jhead.Markers.Count -1]).Type, JpegMarker.Sos);
// NOTE this is kind of sill but it might help
Assert.IsTrue (Math.Abs (jhead.GuessQuality () - quality) <= 1);
Assert.IsNotNull (jhead.GetExifHeader ());
}
File.Delete (path);
}
private void AddExifProperties (JpegHeader header)
{
Tiff.Header ifd = header.GetExifHeader ();
if (ifd == null)
return;
//ifd.Dump ("foo"); // Uncomment to debug
string str;
Tiff.DirectoryEntry entry;
// Add IFD 0 properies
str = GetExifString (ifd.Directory, Tiff.TagId.Model);
AddProperty (Beagle.Property.New ("exif:Model", str));
str = GetExifString (ifd.Directory, Tiff.TagId.ImageDescription);
AddProperty (Beagle.Property.New ("exif:ImageDescription", str));
try {
entry = ifd.Directory.Lookup (Tiff.TagId.DateTime);
if (entry != null)
// Assume datetime stored in the images are local times
AddProperty (Beagle.Property.NewDate ("exif:DateTime", entry.ValueAsDate.ToUniversalTime ()));
} catch (FormatException) {
Logger.Log.Debug ("EXIF DateTime '{0}' is invalid.", GetExifString (ifd.Directory, Tiff.TagId.DateTime));
} catch (ArgumentOutOfRangeException) {
Logger.Log.Debug ("EXIF DateTime '{0}' is invalid.", GetExifString (ifd.Directory, Tiff.TagId.DateTime));
}
str = GetExifString (ifd.Directory, Tiff.TagId.Copyright);
AddProperty (Beagle.Property.New ("dc:rights", str));
// Add IFD 1 properties
Tiff.SubdirectoryEntry subdir = (Tiff.SubdirectoryEntry) ifd.Directory.Lookup (Tiff.TagId.ExifIfdPointer);
if (subdir == null)
return;
Tiff.ImageDirectory exif = subdir.Directory [0];
if (exif == null)
return;
entry = exif.Lookup (Tiff.TagId.UserComment);
if (entry != null)
AddProperty (Beagle.Property.New ("exif:UserComment", entry.UserCommentValue));
uint val = 0;
entry = exif.Lookup (Tiff.TagId.PixelXDimension);
if (entry != null)
val = entry.ValueAsLong [0];
if (val > 0) {
Width = (int) val;
AddProperty (Beagle.Property.NewUnsearched ("exif:PixelXDimension", val));
}
val = 0;
entry = exif.Lookup (Tiff.TagId.PixelYDimension);
if (entry != null)
val = entry.ValueAsLong [0];
if (val > 0) {
Height = (int) val;
AddProperty (Beagle.Property.NewUnsearched ("exif:PixelYDimension", val));
}
str = GetExifString (exif, Tiff.TagId.ISOSpeedRatings);
AddProperty (Beagle.Property.NewUnsearched ("exif:ISOSpeedRatings", str));
str = GetExifString (exif, Tiff.TagId.ShutterSpeedValue);
AddProperty (Beagle.Property.NewUnsearched ("exif:ShutterSpeedValue", str));
str = GetExifString (exif, Tiff.TagId.ExposureTime);
if (! String.IsNullOrEmpty (str))
AddProperty (Beagle.Property.NewUnsearched ("exif:ExposureTime", str + " sec."));
double rational_val;
rational_val = GetExifRational (exif, Tiff.TagId.FNumber);
if (rational_val > 0)
AddProperty (Beagle.Property.NewUnsearched ("exif:FNumber", String.Format ("f/{0}", rational_val)));
rational_val = GetExifRational (exif, Tiff.TagId.ApertureValue);
if (rational_val > 0)
AddProperty (Beagle.Property.NewUnsearched ("exif:ApertureValue", rational_val));
rational_val = GetExifRational (exif, Tiff.TagId.FocalLength);
if (rational_val > 0)
AddProperty (Beagle.Property.NewUnsearched ("exif:FocalLength", String.Format ("{0} mm", rational_val)));
entry = exif.Lookup (Tiff.TagId.Flash);
if (entry != null) {
ushort flash = entry.ShortValue [0];
AddProperty (Beagle.Property.NewUnsearched ("exif:Flash", GetFlashString (flash)));
}
}
