private bool FragmentProcess()
{
int index, offset;
List <UuidUrl> url = new List <UuidUrl>(1);
List <Fragment> fragments;
_fragmentJpx = new FragmentJpxStructure();
//Get Input Jpeg 2000 file name
_fragmentJpx.inJPG2FileName = _txtInputFile.Text;
//Get Output Jpeg 2000 file name
_fragmentJpx.outJPG2FileName = _txtOutputFile.Text;
//Get Stream file name
_fragmentJpx.streamFileName = _txtCodeStreamsFiles.Text;
try
{
_fileInformation = (Jpeg2000FileInformation)_mainParentForm.Jpeg2000Eng.GetFileInformation(_fragmentJpx.inJPG2FileName);
}
catch (Exception ex)
{
Messager.ShowError(this, ex);
return(false);
}
//if(_fileInformation.Format != Jpeg2000FileFormat.LeadJpx || _fileInformation.FragmentTable.Length > 0)
if (_fileInformation.Format != Jpeg2000FileFormat.LeadJpx || _fileInformation.FragmentTable != null)
{
Messager.ShowError(this, "The input file is not in JPX format or already fragmented");
return(false);
}
UuidUrl UuidUrlItem = new UuidUrl();
UuidUrlItem.Flag = new byte[3];
UuidUrlItem.Flag[0] = 0;
UuidUrlItem.Flag[1] = 0;
UuidUrlItem.Flag[2] = 0;
UuidUrlItem.Version = 0;
System.Text.UnicodeEncoding encoding = new System.Text.UnicodeEncoding();
byte [] filename = encoding.GetBytes(_fragmentJpx.streamFileName);
UuidUrlItem.Location = new byte[filename.Length + 2];
Array.Copy(filename, UuidUrlItem.Location, filename.Length);
UuidUrlItem.Location[filename.Length] = 0; //null termination
UuidUrlItem.Location[filename.Length + 1] = 0; //null termination
url.Add(UuidUrlItem);
fragments = new List <Fragment>();
for (index = 0, offset = 0; index < _fileInformation.CodeStream.Length; index++)
{
Fragment fragmenItem = new Fragment();
fragmenItem.UrlIndex = 1;
fragmenItem.CodeStreamIndex = Convert.ToInt32(index);
fragmenItem.Offset = offset;
offset += Convert.ToInt32(_fileInformation.CodeStream[index].DataSize);
fragments.Add(fragmenItem);
}
try
{
_mainParentForm.Jpeg2000Eng.FragmentJpxFile(_fragmentJpx.inJPG2FileName, _fragmentJpx.outJPG2FileName, url, fragments);
}
catch (Exception ex)
{
Messager.ShowError(this, ex);
return(false);
}
FragmentSaveStreamFile(_fragmentJpx.streamFileName, _fragmentJpx.inJPG2FileName, _fileInformation);
return(true);
}
private bool FragmentSaveStreamFile(string streamFileName, string inFileName, Jpeg2000FileInformation fileInformation)
{
int index;
byte[] buffer;
//Load Box Data File
FileStream streamFile = File.Open(streamFileName, FileMode.Create);
if (streamFile == null)
{
return(false);
}
FileStream inFile = File.Open(inFileName, FileMode.Open);
if (inFile == null)
{
return(false);
}
buffer = new byte[inFile.Length];
if (buffer == null)
{
return(false);
}
for (index = 0; index < fileInformation.CodeStream.Length; index++)
{
inFile.Seek(fileInformation.CodeStream[index].DataOffset, SeekOrigin.Begin);
inFile.Read(buffer, 0, Convert.ToInt32(fileInformation.CodeStream[index].DataSize));
streamFile.Write(buffer, 0, Convert.ToInt32(fileInformation.CodeStream[index].DataSize));
}
inFile.Close();
streamFile.Close();
return(true);
}
