private static double GetExifRational(Tiff.ImageDirectory directory, Tiff.TagId id)
{
if (directory == null)
{
return(0);
}
Tiff.DirectoryEntry entry = directory.Lookup(id);
if (entry == null)
{
return(-1);
}
return(entry.RationalValue [0].Value);
}
private static string GetExifString(Tiff.ImageDirectory directory, Tiff.TagId id)
{
if (directory == null)
{
return(null);
}
Tiff.DirectoryEntry entry = directory.Lookup(id);
if (entry == null)
{
return(null);
}
return(entry.ValueAsString [0]);
}
public void SelectDirectory (ImageDirectory dir, StatementSink sink)
{
foreach (DirectoryEntry e in dir.Entries) {
#if DEBUG_LOADER
System.Console.WriteLine ("{0}", e.Id);
#endif
switch (e.Id) {
case TagId.IPTCNAA:
System.IO.Stream iptcstream = new System.IO.MemoryStream (e.RawData);
FSpot.Iptc.IptcFile iptc = new FSpot.Iptc.IptcFile (iptcstream);
iptc.Select (sink);
break;
case TagId.PhotoshopPrivate:
System.IO.Stream bimstream = new System.IO.MemoryStream (e.RawData);
FSpot.Bim.BimFile bim = new FSpot.Bim.BimFile (bimstream);
bim.Select (sink);
break;
case TagId.XMP:
System.IO.Stream xmpstream = new System.IO.MemoryStream (e.RawData);
FSpot.Xmp.XmpFile xmp = new FSpot.Xmp.XmpFile (xmpstream);
xmp.Select (sink);
break;
case TagId.ImageDescription:
MetadataStore.AddLiteral (sink, "dc:description", "rdf:Alt",
new Literal (e.ValueAsString [0], "x-default", null));
break;
case TagId.UserComment:
MetadataStore.AddLiteral (sink, "exif:UserComment", "rdf:Alt",
new Literal (e.ValueAsString [0], "x-default", null));
break;
case TagId.Copyright:
MetadataStore.AddLiteral (sink, "dc:rights", "rdf:Alt",
new Literal (e.ValueAsString [0], "x-default", null));
break;
case TagId.Artist:
MetadataStore.Add (sink, "dc:creator", "rdf:Seq", e.ValueAsString);
break;
case TagId.ExifIfdPointer:
try {
ImageDirectory sub = ((SubdirectoryEntry)e).Directory [0];
SelectDirectory (sub, sink);
} catch (System.Exception exc) {
System.Console.WriteLine (exc);
}
break;
case TagId.Software:
MetadataStore.AddLiteral (sink, "xmp:CreatorTool", e.ValueAsString [0]);
break;
case TagId.DateTime:
try {
MetadataStore.AddLiteral (sink, "xmp:ModifyDate",
e.ValueAsDate.ToString ("yyyy-MM-ddThh:mm:ss"));
} catch (System.Exception ex) {
System.Console.WriteLine (String.Format ("error parsing {0}{2}{1}", e.ValueAsString[0], ex, Environment.NewLine));
}
break;
case TagId.DateTimeOriginal:
case TagId.DateTimeDigitized:
// FIXME subsectime needs to be included in these values
// FIXME shouldn't DateTimeOriginal be xmp:CreateDate? the spec says no but wtf?
try {
MetadataStore.AddLiteral (sink, "exif:" + e.Id.ToString (),
e.ValueAsDate.ToString ("yyyy-MM-ddThh:mm:ss"));
} catch (System.Exception ex) {
System.Console.WriteLine (String.Format ("error parsing {0}{2}{1}", e.ValueAsString[0], ex, Environment.NewLine));
}
break;
//case TagId.SpatialFrequencyResponse
case TagId.ExifCFAPattern:
CFAPattern pattern = new CFAPattern (e.RawData, e.IsLittle);
Entity empty = new BNode ();
Statement top = new Statement (MetadataStore.FSpotXMPBase,
(Entity)MetadataStore.Namespaces.Resolve ("exif:" + e.Id.ToString ()),
empty);
Statement cols = new Statement (empty,
(Entity) MetadataStore.Namespaces.Resolve ("exif:Columns"),
new Literal (pattern.Columns.ToString (), null, null));
sink.Add (cols);
Statement rows = new Statement (empty,
(Entity) MetadataStore.Namespaces.Resolve ("exif:Rows"),
new Literal (pattern.Rows.ToString (), null, null));
sink.Add (rows);
string [] vals = e.ArrayToString (pattern.Values);
MetadataStore.Add (sink, empty, "exif:Values", "rdf:Seq", vals);
sink.Add (top);
break;
case TagId.ExifVersion:
case TagId.FlashPixVersion:
case TagId.ColorSpace:
case TagId.CompressedBitsPerPixel:
case TagId.PixelYDimension:
case TagId.PixelXDimension:
case TagId.RelatedSoundFile:
case TagId.ExposureTime:
case TagId.FNumber:
case TagId.ExposureProgram:
case TagId.SpectralSensitivity:
case TagId.ShutterSpeedValue:
case TagId.ApertureValue:
case TagId.BrightnessValue:
case TagId.ExposureBiasValue:
case TagId.MaxApertureValue:
case TagId.SubjectDistance:
case TagId.MeteringMode:
case TagId.LightSource:
case TagId.FocalLength:
case TagId.FlashEnergy:
case TagId.FocalPlaneXResolution:
case TagId.FocalPlaneYResolution:
case TagId.FocalPlaneResolutionUnit:
case TagId.ExposureIndex:
case TagId.SensingMethod:
case TagId.FileSource:
case TagId.SceneType:
case TagId.CustomRendered:
case TagId.ExposureMode:
case TagId.WhiteBalance:
case TagId.DigitalZoomRatio:
case TagId.FocalLengthIn35mmFilm:
case TagId.SceneCaptureType:
case TagId.GainControl:
case TagId.Contrast:
case TagId.Saturation:
case TagId.Sharpness:
MetadataStore.AddLiteral (sink, "exif:" + e.Id.ToString (), e.ValueAsString [0]);
break;
case TagId.ComponentsConfiguration:
case TagId.ISOSpeedRatings:
case TagId.SubjectArea:
case TagId.SubjectLocation:
MetadataStore.Add (sink, "exif:" + e.Id.ToString (), "rdf:Seq", e.ValueAsString);
break;
case TagId.TransferFunction:
case TagId.YCbCrSubSampling:
case TagId.WhitePoint:
case TagId.PrimaryChromaticities:
case TagId.YCbCrCoefficients:
case TagId.ReferenceBlackWhite:
case TagId.BitsPerSample:
MetadataStore.Add (sink, "tiff:" + e.Id.ToString (), "rdf:Seq", e.ValueAsString);
break;
case TagId.Orientation:
case TagId.Compression:
case TagId.PhotometricInterpretation:
case TagId.SamplesPerPixel:
case TagId.PlanarConfiguration:
case TagId.YCbCrPositioning:
case TagId.ResolutionUnit:
case TagId.ImageWidth:
case TagId.ImageLength:
case TagId.Model:
case TagId.Make:
MetadataStore.AddLiteral (sink, "tiff:" + e.Id.ToString (), e.ValueAsString [0]);
break;
}
}
}
public Header (System.IO.Stream stream)
{
//using (new Timer ("new Tiff.Header")) {
byte [] data = new byte [8];
stream.Read (data, 0, data.Length);
if (data [0] == 'M' && data [1] == 'M')
endian = Endian.Big;
else if (data [0] == 'I' && data [1] == 'I')
endian = Endian.Little;
ushort marker = BitConverter.ToUInt16 (data, 2, endian == Endian.Little);
switch (marker) {
case 42:
//System.Console.WriteLine ("Found Standard Tiff Marker {0}", marker);
break;
case 0x4f52:
System.Console.WriteLine ("Found Olympus Tiff Marker {0}", marker.ToString ("x"));
break;
case 0x4e31:
System.Console.WriteLine ("Found Navy Interchange File Format Tiff Marker {0}", marker.ToString ("x"));
break;
default:
System.Console.WriteLine ("Found Unknown Tiff Marker {0}", marker.ToString ("x"));
break;
}
//System.Console.WriteLine ("Converting Something");
directory_offset = BitConverter.ToUInt32 (data, 4, endian == Endian.Little);
if (directory_offset < 8)
throw new ParseException ("Invalid IFD0 Offset [" + directory_offset.ToString () + "]");
#if DEBUG_LOADER
System.Console.WriteLine ("Reading First IFD");
#endif
Directory = new ImageDirectory (stream, directory_offset, endian);
//}
}
public ImageLoader (ImageDirectory directory)
{
width = directory.Lookup (TagId.ImageWidth).ValueAsLong [0];
length = directory.Lookup (TagId.ImageLength).ValueAsLong [0];
bps = directory.Lookup (TagId.BitsPerSample).ValueAsLong;
compression = (Compression) directory.Lookup (TagId.Compression).ValueAsLong [0];
interpretation = (PhotometricInterpretation) directory.Lookup (TagId.PhotometricInterpretation).ValueAsLong [0];
offsets = directory.Lookup (TagId.StripOffsets).ValueAsLong;
strip_byte_counts = directory.Lookup (TagId.StripByteCounts).ValueAsLong;
rows_per_strip = directory.Lookup (TagId.RowsPerStrip).ValueAsLong [0];
if (interpretation !=
}
public override void LoadExternal (System.IO.Stream stream)
{
uint entry_count = GetEntryCount ();
Directory = new ImageDirectory [entry_count];
base.LoadExternal (stream);
for (int i = 0; i < entry_count; i++) {
try {
directory_offset = BitConverter.ToUInt32 (raw_data, i * 4, endian == Endian.Little);
Directory [i] = new ImageDirectory (stream, directory_offset, endian);
} catch (System.Exception e) {
System.Console.WriteLine ("Error loading Subdirectory {0} at {2} of {3}bytes:{4}{1}",
this.Id, e, directory_offset, stream.Length, Environment.NewLine);
}
}
}
public static DirectoryEntry CreateEntry (ImageDirectory parent, byte [] input, int start, Endian header_endian)
{
TagId tagid;
EntryType type;
DirectoryEntry.ParseHeader (input, start, out tagid, out type, header_endian);
//ConstructorFunc ctor = ctors[tagid];
//if (ctor == null) {
// return ctor (input, header_endian);
//}
switch (tagid) {
case TagId.ExifIfdPointer:
case TagId.GPSInfoIfdPointer:
case TagId.InteroperabilityIfdPointer:
case TagId.SubIFDs:
return new SubdirectoryEntry (input, start, header_endian);
//case TagId.MakerNote:
//return new MakerNoteEntry (input, start, header_endian);
//case TagId.PimIfdPointer:
//return new
//case TagId.MakerNote:
//return new MakerNoteEntry (input, start, header_endian);
}
switch (type) {
case EntryType.Ifd:
//System.Console.WriteLine ("Trying to load {0} {1}", tagid, tagid.ToString ("x"));
return new SubdirectoryEntry (input, start, header_endian);
case EntryType.Byte:
return new ByteEntry (input, start, header_endian);
case EntryType.Long:
return new LongEntry (input, start, header_endian);
case EntryType.Short:
return new ShortEntry (input, start, header_endian);
}
return new DirectoryEntry (input, start, header_endian);
}
protected void LoadNextDirectory (System.IO.Stream stream)
{
#if DEBUG_LOADER
System.Console.WriteLine ("start_position = {1} next_directory_offset = {0}",
next_directory_offset, orig_position);
#endif
next_directory = null;
try {
if (next_directory_offset != 0 && next_directory_offset != orig_position)
next_directory = new ImageDirectory (stream, next_directory_offset, this.endian);
} catch (System.Exception) {
//System.Console.WriteLine ("Error loading directory {0}", e.ToString ());
next_directory = null;
next_directory_offset = 0;
}
}
internal static void AddTiffDirectoryProperties (FilterTiff filter, ImageDirectory directory)
{
foreach (DirectoryEntry e in directory.Entries) {
switch (e.Id) {
case TagId.ImageDescription:
filter.AddProperty (Beagle.Property.New ("exif:ImageDescription", e.ValueAsString [0]));
break;
case TagId.Model:
filter.AddProperty (Beagle.Property.New ("exif:Model", e.ValueAsString [0]));
break;
case TagId.UserComment:
filter.AddProperty (Beagle.Property.New ("exif:UserComment", e.ValueAsString [0]));
break;
case TagId.DateTimeOriginal:
AddDateProperty (filter, "exif:DateTimeOriginal", e.ValueAsString [0]);
break;
case TagId.DateTimeDigitized:
AddDateProperty (filter, "exif:DateTimeDigitized", e.ValueAsString [0]);
break;
case TagId.DateTime:
AddDateProperty (filter, "exif:DateTime", e.ValueAsString [0]);
break;
case TagId.PixelXDimension:
filter.Width = (int) e.ValueAsLong [0];
//filter.AddProperty (Beagle.Property.NewUnsearched ("exif:PixelXDimension", e.ValueAsString [0]));
break;
case TagId.PixelYDimension:
filter.Height = (int) e.ValueAsLong [0];
//filter.AddProperty (Beagle.Property.NewUnsearched ("exif:PixelYDimension", e.ValueAsString [0]));
break;
case TagId.ImageWidth:
uint wval = e.ValueAsLong [0];
if (filter.Width < wval)
filter.Width = (int) wval;
break;
case TagId.ImageLength:
uint hval = e.ValueAsLong [0];
if (filter.Height < hval)
filter.Height = (int) hval;
break;
case TagId.ExposureTime:
filter.AddProperty (Beagle.Property.NewUnsearched ("exif:ExposureTime", e.ValueAsString [0]));
break;
case TagId.ISOSpeedRatings:
filter.AddProperty (Beagle.Property.NewUnsearched ("exif:ISOSpeedRatings", e.ValueAsString [0]));
break;
case TagId.FNumber:
filter.AddProperty (Beagle.Property.NewUnsearched ("exif:FNumber", Math.Round ((e.RationalValue [0]).Value, 1)));
break;
case TagId.FocalLength:
filter.AddProperty (Beagle.Property.NewUnsearched ("exif:FocalLength", e.ValueAsString [0]));
break;
case TagId.Flash:
ushort flash_val = e.ShortValue [0];
filter.AddProperty (Beagle.Property.NewBool ("exif:Flash", (flash_val & 0x1) == 0x1));
break;
case TagId.XMP:
XmpFile xmp = new XmpFile (new System.IO.MemoryStream (e.RawData));
filter.AddXmpProperties (xmp);
break;
}
}
}
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)));
}
}
