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]); }
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); }
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 != }
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))); } }