how can i communicate with other apps using OSC?

keszegh · June 2014

http://opensoundcontrol.org/
i want to be able to send/receive osc messages (first i want just to communicate between two instances of my app via wifi but later i want to communicate with other software that uses osc). can you help me how to achieve it? i've found a few lua implementations but they were all either c or beta and/or using some package i could not put to work with gideros.
https://github.com/koniu/luaosc
https://github.com/grrrwaaa/luaosc
https://github.com/headchant/loveOSC
i would want some cross-platform solution, that's why i look for lua implementations mostly and not yet interested much in java e.g.

thanks for any ideas.

ar2rsawseen · June 2014

@keszegh C is exactly what you need, so you can run it on every platform.
And this seems to be exactly what you need.
https://github.com/grrrwaaa/luaosc

All you need is to create gideros stub file, like this:

#include "gideros.h"
#include "lua.h"
#include "lauxlib.h"
 
extern "C" {
LUALIB_API int luaopen_osc(lua_State * L);
}
 
static void g_initializePlugin(lua_State *L)
{
	lua_getglobal(L, "package");
	lua_getfield(L, -1, "preload");
 
	lua_pushcfunction(L, luaopen_osc);
	lua_setfield(L, -2, "osc");
 
	lua_pop(L, 2);
}
 
static void g_deinitializePlugin(lua_State *L)
{
}
REGISTER_PLUGIN("OSC", "1.0")

Then you can
create Android.mk file build it with AndroidNDK to create .so files for Android
Build with mingw to create dll and put it in plugins folder on Windows
Build with g++ to create dylib and put it in plugins folder on Mac
Simply copy the source files to Plugins directory in exported xCode project for iOS

What do you need first, Windows? Mac?

keszegh · June 2014

Thanks @ar2rsawseen,
i will try it out this way.
i need for android and windows mainly, so far.

ar2rsawseen · June 2014

ah, just tried it out and it can be more complex than that
because it also needs apache portable runtime to use sockets and stuff from.

Maybe better version is to use the second one, which is beta, but can be used as plain lua, because it is using lua_socket, which Gideros already has, only include the needed lua socket files to your project from Gideros installation directory

keszegh · June 2014

oh, but that one needs lpack, is there a lua version of it or does that need to be made as a plugin?

ar2rsawseen · June 2014

well it is possible to use the first one, just not so easy as I firstly described
I will try tonight again

keszegh · June 2014

if you manage to have a working template or sketch, that would be great.
there is a handy free android app called 'control' with which you can check if receiving (and maybe sending) osc messages is working in your app. or to test with pure-data here is a simple intro:
http://hexler.net/docs/touchosc-getting-started-osc
update: the pure-data method in the above page seems not to work for me
update2:
this pd file can make you able to test osc message receive/send with pure-data in 5 minutes:
http://charlie-roberts.com/Control/misc/patchesAndCode/Control-to-PD.pd

ar2rsawseen · June 2014

@keszegh here are the Windows binaries
just put them in the Plugins folder in your Gideros installation directory and restart Gideros Player

ar2rsawseen · June 2014

Ah, but now looking it, although nothing indicates that Apache Portable Runtime can't be build for android, but I also don't see any info of somebody doing that

keszegh · June 2014

thanks, do i have to compile this in win to work i assume? i never dealt with plugin for windows, only for android, so i have to set up the enviroment etc.
could you perhaps send a gideros player that has this included (if you may have it already)?

and so what about android? any hopes?

so far thanks for your kind help, i'm quite enthusiastic about the possibilities of osc.

ar2rsawseen · June 2014

@keszegh there are just 2 dll files that you copy into folder and it will work on windows, nothing more.

will check more about android

keszegh · June 2014

i had problems, but it's ok now, i mean the player works. how can i test it?
this example code throws error (even if i change osc.client to osc in require):

 
require('osc.client')
 
VAR1 = {
	'#bundle',
	os.time(),
	{
            '/play',
            's',
            'on',
            'i',
            40,
            'i',
            10,
            'i',
            0,
            'i',
            20,
            'i',
            100,
            'i',
            100,
            'i',
            10,
            'i',
            0,
            'i',
            1
	}
}
 
VAR2 = {
	'#bundle',
	os.time(),
	{
            '/play',
            's',
            'on',
            'i',
            40,
            'f',
            10.1,
            'i',
            0,
            'i',
            20,
            'i',
            100,
            'i',
            100,
            'i',
            10,
            'i',
            0,
            'i',
            1
	}
}
 
 
 
local osc = osc.client.new{host = 'localhost', port = 7777} --57120}
 
print (VAR2[2])
 
osc:send(VAR2)

keszegh · June 2014

forget it, i realized that finally you used the 2nd link i've sent so the correct test file is this, and it works!!!:

local osc = require "osc"
 
print(osc)
for k, v in pairs(osc) do print(k, v) end
 
local r = osc.Recv(8080)
print(r:host(), r:port(), r:ip())
 
local s = osc.Send("localhost", 8080)
print(s:host(), s:port(), s:ip())
 
-- send messages:
s:send("/pi", math.pi)	--- float
s:send("/foo", "a", "aa", "aaa", "aaaa")
 
-- send bundles:
--[[
 
PACKET:
		if the first argument on the stack is a string, then it is a message
			send message
		else this is a bundle:
			start a bundle
			for each argument on the stack:
				assert it is a table
				allocate bundle size marker
				unpack the table elements to the stack
					recurse to PACKET:
				pop the elements
				write bundle size to marker
--]]
 
s:send{ 
	{ "/bee", 3, "four" }, 
	{ "/bim", 66 }, 
	{		
		{ "/bim", 66 }, 
		{ "/bap", "a", "aa", "aaa", } 
	},
	{ "/bap", "a", "aa", "aaa", } 
}
 
--[[
s:send{ 
	{ "/bar", 1, "two" }, 
	{	-- sub-bundle:
		{ "/bar", 2, "one" }, 
		{ "/bar", 2, "one" }, 
	}
}
--]]
 
osc.sleep(1)
 
for m in r:recv() do 
	print(m.addr, m.types, m.time, unpack(m))
end

keszegh · June 2014

so now only the android version is needed for my complete happiness.

keszegh · June 2014

did you try/succeed in porting this to android as well?

if not, perhaps for android the java versions are the easier to make a plugin from?
https://github.com/hoijui/JavaOSC
http://www.sciss.de/netutil/

thanks

ar2rsawseen · June 2014

Unfortuantely no, I did not succeed building apr for android.
But it was easy to build pack lib, to use with this version:
https://github.com/koniu/luaosc

You can try if this seems to fit your need

keszegh · June 2014

thanks a lot, i will try it soon.

keszegh · June 2014

i'm trying it with the client example, and i get this error which seems is due to the pack plugin (i test on windows, the dll is in the plugins directory):

.\osc.lua:301: bad argument #1 to 'pack' (bad mode `>')
stack traceback:
.\osc.lua:301: in function 'encode_timetag'
.\osc.lua:74: in function 'encode'
.\client.lua:33: in function 'send'
main.lua:65: in main chunk

keszegh · June 2014

meanwhile this can be another alternative to make a plugin for all platforms?:
http://lua-users.org/lists/lua-l/2006-04/msg00408.html
http://www.rossbencina.com/code/oscpack

if you can make sense of it.

keszegh · June 2014

or this one?
http://liblo.sourceforge.net/

keszegh · August 2016

@ar2rsawseen, revisiting this topic, with new gideros version when with the 2 files you sent i try to add them to plugins directory and call
local osc = require "osc"
then i get an error:

.\oscparty.lua:1: module 'osc' not found:
no field package.preload['osc']
no file '.\osc.lua'
no file 'C:\Program Files (x86)\Gideros\lua\osc.lua'
no file 'C:\Program Files (x86)\Gideros\lua\osc\init.lua'
no file 'C:\Program Files (x86)\Gideros\osc.lua'
no file 'C:\Program Files (x86)\Gideros\osc\init.lua'
no file '.\osc.dll'
no file 'C:\Program Files (x86)\Gideros\osc.dll'
no file 'C:\Program Files (x86)\Gideros\loadall.dll'

any ideas? thanks.

ar2rsawseen · August 2016

unfortunately binaries need to be rebuilt for basically every new version of Gideros

keszegh · August 2016

could you do that or even better guide me how to do that?

keszegh · June 2018

@ar2rsawseen and others (perhaps good to target @hgy29 too), i'd be happy to keep using the osc plugin which would work well except that the latest compilation not surprisingly does not work with the latest gideros. would it be possible to add it to the official plugins and then it would be included in the releases automatically?

would it work only on windows, or mac too? (and what about further exports?)

thanks

keszegh · June 2018

up!

keszegh · June 3

dear @hgy29, i'd like to resurrect my app's support for communication via the osc protocol (as i want it to be able to communicate with Chataigne). would it be possible to add a plugin for that?

keszegh · June 3

or in addition/even better, plugin for the OSCQuery protocol would be nice. it is explained nicely here: https://vdmx.vidvox.net/blog/oscquery

of course OSC plugin would be most important at this point, and i guess it can be extended to support OSCQuery later on.

hgy29 · June 4

Hi @keszegh, any chance this one could work ? https://github.com/davidgranstrom/losc
It claims to be pure lua and relying on lua socket for communications, which Gideros already supports.

keszegh · June 4

i think for OSC it would be perfect.

on the other hand it will be hard to extend to OSCQuery. see https://github.com/OSSIA/libossia for a library that does all (but i guess needs much more work to add to gideros due to bindings etc).
so for now i'd be quite happy with OSC only, if that's a relatively simple thing to add using losc. then later if it turns out that i need OSCQuery desperately, we can discuss further what we can do.

thanks a lot

keszegh · June 21

@hgy29 , may this be in a forthcoming release already? (thanks, in whichever case)

hgy29 · June 22

I thought losc was meeting your needs, have you tried it?

Howdy, Stranger!

Categories

In this Discussion

Top Posters

how can i communicate with other apps using OSC?

Comments

Howdy, Stranger!

Quick Links

Categories

In this Discussion

Top Posters

how can i communicate with other apps using OSC?

Comments