[OSC_dev] oscit registration complete !

Gaspard Bucher gaspard at teti.ch
Wed Jan 28 01:47:48 PST 2009


I do not want to dive too deeply into max/MSP, but to be brief: it's a
very common tool used by artists and I'm writing http://rubyk.org as
an open source replacement for most of the tasks max/MSP is doing. But
since max/MSP is so common in the field I'm working in (live
performance art, installations), I have to live with what it does.

udpsend object setup
-----------------------------

This object is really stupid: it sends whatever data you feed it to a
specific ip end point specified by IP and port:

[udpsend 10.0.0.5 7400]  -----> other app listening at 10.0.0.5:7400

The port specified here is the target's port. When receiving messages
in "other app", the sender's port (max/MSP) can be anything (50173 for
a typical value). You cannot open any "udpreceive" with this port
(already in use) and what you send it is ignored.

If you want to try it out, there's a demo windows version of max/MSP:
http://www.cycling74.com/downloads/max5

Gaspard

On Wed, Jan 28, 2009 at 10:17 AM, Jeff Glatt <jgglatt at roadrunner.com> wrote:
>>When I talk about "implementations" I don't mean "osc library", but
>>real world applications with OSC support that need to be supported one
>>way or the other (max/MSP for example).
>
> Ok, I gather that you're writing your own app (which you want to
> communicate with max/MSP), so whatever you come up with for
> oscit _must_ work with max/MSP (as it exists today).
>
> Got it.
>
>>I haven't tested EasyOSC with max/MSP though but I doubt it
>>would work since "oscsend" and "oscreceive" are two different
>>and agnostic objects
>
> Ok, I'm not familiar with max/MSP specifically. (Sorry, not a Mac
> guy. Linux and Windows here). But I gather that these are some
> sort of "exposed software interfaces" that a separate app like yours
> can "connect" to?
>
>>you have *no* way to define the outgoing port of an "udpsend"
>>object.
>
> >From within max/MSP, I gather? But surely it must know what UDP
> port to send a message to your app? How does it  determine what
> UDP port you're using? It just can't pick its own, random number.
>
> To get more familiar with what you're doing, I did a search for
> "max/msp udpsend" and I came up with a URL to a message on
> this very list:
>
> http://opensoundcontrol.org/topic/222
>
> In one of the replies someone mentions "enter IP and Port for your
> udpsend object via Text/Number boxes with prepended host and port".
> Are you sure what you want to do is not possible? Or is this
> incorrect/outdated info?
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