[ishanf]

I tried to send files to Nokia N95 and Nokia 6131, by using a small java app which used JSR-82(bluecove 2.0.3) bluetooth obex.

but the file sending times for those two models results different.

example:
sending 3.9MB audio file using my java app...
N95 - 2min 58sec
6131 - 1min 59sec

sending the same file using os x bluetooth file transfer...
N95 - 0min 38sec
6131 - 0min 30sec

is this possible ??

this is my code...

Connection connection = Connector.open(connectionURL);

ClientSession cs = (ClientSession)connection;
HeaderSet hs = cs.createHeaderSet();

cs.connect(hs);
				
File file = new File("filepath");

InputStream is = new FileInputStream(file);
byte filebytes[] = new byte[is.available()];
is.read(filebytes);
is.close();

hs = cs.createHeaderSet();
hs.setHeader(HeaderSet.NAME, file.getName());
hs.setHeader(HeaderSet.TYPE, "audio/mpeg");
hs.setHeader(HeaderSet.LENGTH, new Long(filebytes.length));

Operation putOperation = cs.put(hs);

DataOutputStream outputStream = putOperation.openDataOutputStream();
outputStream.write(filebytes);

have you any idea to improve the file sending times ?? or those times are acceptable...

thanks in advance...
ishan.

[mkroll]

Hi Ishan,

did you get any reply or did you solved this issue yourself already?
I'm facing a similar problem using blucove 2.1.0 while downloading an image file from a phone.
The phone progress shows that about 4kb are read per second... very poor performance...

Any idea how to speed this up?

Regards,
Michael.

[mkroll]

I think increasing the MTU size of the BlueCove implementation does the trick.

call:
BlueCoveImpl.setConfigProperty(BlueCoveConfigProperties.PROPERTY_OBEX_MTU, "16384");

The Default MTU is 1024.

and the transfer is much much faster.

Regards,
Michael.