protected JpegReadStatusByte ReadJpegByte()
{
JpegReadStatusByte status = ReadByte();
if (status.Status == Status.Success)
{
/* If it's 0xFF, check and discard stuffed zero byte */
if (status.Result == JpegMarker.XFF)
{
// Discard padded oxFFs
while ((status = ReadByte()).Result == 0xff)
{
;
}
// ff00 is the escaped form of 0xff
if (status.Result == 0)
{
status.Result = 0xff;
}
else
{
// Otherwise we've found a new marker.
status.Status = Status.MarkerFound;
return(status);
}
}
status.Status = Status.Success;
return(status);
}
else
{
return(status);
}
}
public JpegReadStatusByte ToByte()
{
var status = new JpegReadStatusByte();
status.Status = Status;
status.Result = (byte)Result;
return(status);
}
public static JpegReadStatusByte GetSuccess()
{
var status = new JpegReadStatusByte();
status.Status = Status.Success;
status.Result = 0;
return(status);
}
//public byte ReadByte()
//{
// int b = _stream.ReadByte();
// if (b == -1) throw new EndOfStreamException();
// return (byte)b;
//}
public JpegReadStatusByte ReadByte()
{
var status = new JpegReadStatusByte();
int b = BaseStream.ReadByte();
if (b == -1)
{
status.Result = 0;
status.Status = Status.EOF;
}
else
{
status.Result = (byte)b;
status.Status = Status.Success;
}
return(status);
}
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