Oscp5 unpack bundle

Adrien Go..

in Contributed Library Questions • 1 month ago

Hi,

I'm receiving bundles in processing with oscp5 library but after many research I didn't found a way to "unpack" the bundles. I just discover the OSC protocol yesterday so I'm not familiar at all with it. For now I just have the basic information from the bundle example:

void oscEvent(OscMessage theOscMessage) {
print the address pattern and the typetag of the received OscMessage */
print("### received an osc message.");
print(" addrpattern: "+theOscMessage.addrPattern());
print(" typetag: "+theOscMessage.typetag());
println(" timetag: "+theOscMessage.timetag());
}

wich get me these informations in the console :

### received an osc message. addrpattern: #bundle typetag: timetag: -3036775305449569814

How can I see what are in the bundle? I'll be very please if I can have an example or a place to search!

Thanks,

Replies(6)

andreas.s..

Re: Oscp5 unpack bundle

1 month ago

Hi, when receiving bundles the osc messages contained within the bundle are passed on to the oscEvent() function, you don't see the bundle at processing level. There is a bundle example that comes with the oscP5 library you can try. which application are you using to send bundles? it looks like the bundle is malformatted #bundle here should not be the address pattern but is according to the specs used to identify bundles (see osc specs under OSC Bundle, first 8 bytes must be #bundle + 0x00).

andreas schlegel, http://www.sojamo.de

Adrien Go..

Re: Oscp5 unpack bundle

1 month ago

Hi! thanks for your response. The software is a pre-release of a software for the kinect which is not yet available but I'll see with the developper..

I tried the bundle example so I saw what it should be. The thing is that I can unpack it in Pure Data and see the different messages there are in but I can't do it in processing. Is knowing the adress by Pure Data can help?

andreas.s..

Re: Oscp5 unpack bundle

1 month ago

Hi, with the following sketch you can check incoming bytes:

import netP5.*;
/* using netP5.UdpServer that comes with oscP5 version 0.9.9
* to check and print incoming bytes.
*/
void setup() {
UdpServer server = new UdpServer( this , 12001 );
server.addListener( new NetListener() {
public void netEvent(NetMessage theNetMessage) {
Bytes.printBytes( theNetMessage.getData() );
}
public void netStatus(NetStatus theStatus) {
}
});
}
void draw() {
}

Use the oscP5Bundle example and change port 12000 to 12001 for

myRemoteLocation = new NetAddress("127.0.0.1",12001);

run the UdpServer sketch above first, then the modified oscP5Bundle example and send a bundle, you should see a byte dump that starts with

# (23) b (62) u (75) n (6E)
d (64) l (6C) e (65) (00)
? (D5) ? (DB) ? (C1) ? (CE)
? (D7) (0A) = (3D) p (70)
(00) (00) (00) (10)
/ (2F) t (74) e (65) s (73)
t (74) (00) (00) (00)
, (2C) s (73) (00) (00)
a (61) b (62) c (63) (00)
(00) (00) (00) (14)
/ (2F) t (74) e (65) s (73)
t (74) 2 (32) (00) (00)
, (2C) s (73) (00) (00)
d (64) e (65) f (66) g (67)

do the same with your software (send osc bundle to port 12001) are the first 2 lines the same?

Adrien Go..

Re: Oscp5 unpack bundle

1 month ago

So, I've made the test, with the software I have a bunch of lines with just (00) then the lines

# (23) b (62) u (75) n (6E)
d (64) l (6C) e (65) (00)

andreas.s..

Re: Oscp5 unpack bundle

1 month ago

A bunch of zeros before #bundle? or is #(23) the very first byte when you receive a bundle from your software. If the zeros precede #bundle then this is the problem.

andreas schlegel, http://www.sojamo.de

Adrien Go..

Re: Oscp5 unpack bundle

1 month ago

I checked, there are a lot of lines with (00) before #(23) but it could be rely to the fact that the software stream informations.