OSC to alsa

osc-alsa.rb

#!/usr/bin/ruby

puts <<-"EOF"
   ____   _____  _____       __              _       _____
  / __ \\ / ____|/ ____|      \\ \\       /\\   | |     / ____|  /\\
 | |  | | (___ | |       _____\\ \\     /  \\  | |    | (___   /  \\
 | |  | |\\___ \\| |      |______> >   / /\\ \\ | |     \\___ \\ / /\\ \\
 | |__| |____) | |____        / /   / ____ \\| |____ ____) / ____ \\
  \\____/|_____/ \\_____|      /_/   /_/    \\_\\______|_____/_/    \\_\\

by rein
EOF

OSC_PORT = 3333

require 'osc-ruby'
require 'osc-ruby/em_server'

@server = OSC::EMServer.new(OSC_PORT)

def print_status
	puts `amixer -Mc 1 sget Headphone | grep "Mono: Playback"`.strip!
end

CARD=1
CONTROLLER="Headphone"

@server.add_method '/alsa-volume/up' do |msg|
	arg = msg.to_a[0]
	puts "#{msg.ip_address}: up #{arg}"
	`amixer -Mc #{CARD} sset #{CONTROLLER} #{arg}%+`
	print_status
end

@server.add_method '/alsa-volume/down' do |msg|
	arg = msg.to_a[0]
	puts "#{msg.ip_address}: down #{arg}"
	`amixer -Mc #{CARD} sset #{CONTROLLER} #{arg}%-`
	print_status
end

@server.add_method '/alsa-volume/set' do |msg|
	arg = msg.to_a[0]
	puts "#{msg.ip_address}: set #{arg}"
	`amixer -Mc #{CARD} sset #{CONTROLLER} #{arg}%`
	print_status
end

@server.add_method '/alsa-volume/toggle' do |msg|
	puts "#{msg.ip_address}: toggle "
	`amixer -Mc #{CARD} sset #{CONTROLLER} toggle`
	print_status
end

puts "Listening to OSC on port #{OSC_PORT}"

print_status

@server.run

send_osc.rb

#!/usr/bin/ruby
require 'osc-ruby'
require "readline"


HOST = ARGV[0] || "192.168.1.17"
PORT = ARGV[1] || 3333

puts "Using #{HOST}:#{PORT}"
@client = OSC::Client.new(HOST,PORT)

while msg = Readline.readline("> ", true)
	addr, *arg = msg.split " "

	puts "Sending \e[36m#{addr}\e[0m \e[92m#{arg.join(" ")}\e[0m"
	
	@client.send( OSC::Message.new(addr, arg.join(" ") ))
end