DcmFileFormat initialized with buffer

[ancrou]

Hi,

I would like to initialize a DcmFileFormat with buffer.


I have got :
const void *buff //a pointer to the receiver’s contents
unsigned long bufLen //the number of bytes contained in the receiver.


What should I do ?

I tried :

Code: Select all

DcmInputBufferStream* buffer= new DcmInputBufferStream();
buffer->setBuffer(buff, bufLen);

But after that ?

Thinks

Anth

[budric]

I haven't done it myself but I assume you'd use something like

Code: Select all

virtual OFCondition 	read (DcmInputStream &inStream, const E_TransferSyntax xfer=EXS_Unknown, const E_GrpLenEncoding glenc=EGL_noChange, const Uint32 maxReadLength=DCM_MaxReadLength)

http://support.dcmtk.org/docs/classDcmDataset.html
to create your dataset.
then initialize DcmFileFormat with the dataset.

[Marco Eichelberg]

Something like this will do. Note the call to setEos which is important because it tells the buffer stream that the buffer will not be refilled (e.g. from a network connection) once it has been read completely.

Code: Select all

DcmInputBufferStream dataBuf;
dataBuf.setBuffer(buff, bufLen);
dataBuf.setEos();

DcmFileFormat dfile;
dfile.transferInit();
OFCondition cond = dfile.read(dataBuf);
dfile.transferEnd();

if( cond.bad() )
{
  // something went wrong.
}

[ancrou]

Something like this will do. Note the call to setEos which is important because it tells the buffer stream that the buffer will not be refilled (e.g. from a network connection) once it has been read completely.

It's working
Thank you a lot.

Anthony