public virtual void Extract(sbyte[] segmentBytes, Com.Drew.Metadata.Metadata metadata, JpegSegmentType segmentType)
{
if (segmentBytes == null)
{
throw new ArgumentNullException("segmentBytes cannot be null");
}
if (metadata == null)
{
throw new ArgumentNullException("metadata cannot be null");
}
if (segmentType == null)
{
throw new ArgumentNullException("segmentType cannot be null");
}
try
{
ByteArrayReader reader = new ByteArrayReader(segmentBytes);
//
// Check for the header preamble
//
try
{
if (!reader.GetString(0, JpegExifSegmentPreamble.Length).Equals(JpegExifSegmentPreamble))
{
// TODO what do to with this error state?
System.Console.Error.Println("Invalid JPEG Exif segment preamble");
return;
}
}
catch (IOException e)
{
// TODO what do to with this error state?
Sharpen.Runtime.PrintStackTrace(e, System.Console.Error);
return;
}
//
// Read the TIFF-formatted Exif data
//
new TiffReader().ProcessTiff(reader, new ExifTiffHandler(metadata, _storeThumbnailBytes), JpegExifSegmentPreamble.Length);
}
catch (TiffProcessingException e)
{
// TODO what do to with this error state?
Sharpen.Runtime.PrintStackTrace(e, System.Console.Error);
}
catch (IOException e)
{
// TODO what do to with this error state?
Sharpen.Runtime.PrintStackTrace(e, System.Console.Error);
}
}
public virtual Face[] GetRecognizedFaces()
{
sbyte[] bytes = GetByteArray(TagFaceRecognitionInfo);
if (bytes == null)
{
return null;
}
RandomAccessReader reader = new ByteArrayReader(bytes);
reader.SetMotorolaByteOrder(false);
try
{
int faceCount = reader.GetUInt16(0);
if (faceCount == 0)
{
return null;
}
Face[] faces = new Face[faceCount];
for (int i = 0; i < faceCount; i++)
{
int offset = 4 + i * 44;
string name = Sharpen.Extensions.Trim(reader.GetString(offset, 20, "ASCII"));
string age = Sharpen.Extensions.Trim(reader.GetString(offset + 28, 20, "ASCII"));
faces[i] = new Face(reader.GetUInt16(offset + 20), reader.GetUInt16(offset + 22), reader.GetUInt16(offset + 24), reader.GetUInt16(offset + 26), name, Age.FromPanasonicString(age));
}
return faces;
}
catch (IOException)
{
return null;
}
}
