Regolare volume Pulseaudio

Se si necessita di un programma che regoli il volume di Pluseaudio da riga di comando, è possibile usare il seguente script:

#!/usr/bin/ruby
def current
  c = IO::popen("pacmd \"list-sinks\" | grep volume | head -1").readlines[0]
  return c.split(" ").last.sub("%", "").strip.to_i
end
 
def max
  c = IO::popen("pacmd \"list-sinks\" | grep \"volume steps\" | head -1").readlines[0]
  return c.split(" ").last.strip.to_i - 1
end
 
def index
  c = IO::popen("pacmd \"list-sinks\" | grep index | head -1").readlines[0]
  return c.split(" ").last.strip.to_i
end
 
def set(v)
  IO::popen("pacmd \"set-sink-volume #{index} #{v}\"").readlines
end
 
def muted
  c = IO::popen("pacmd \"list-sinks\" | grep muted | head -1").readlines[0]
  return c.split(" ").last.strip == "yes"
end
 
def toggle
  t = 1
  if ( muted )
    t = 0
  end
  IO::popen("pacmd \"set-sink-mute #{index} #{t}\"").readlines
end
 
interval = 5
 
if ( ARGV.size == 0 )
  puts current
elsif (ARGV[0] == "?" )
  puts muted
elsif ( ARGV[0] == "+" )
  set([current + interval, 100].min * (max / 100.0).round)
elsif ( ARGV[0] == "-" )
  set([current - interval, 0].max * (max / 100.0).round)
elsif ( ARGV[0] == "!" )
  toggle
end

Con i poteri di root, incollarlo dentro un file /usr/bin/pavol e renderlo eseguibile con:

sudo chmod +x /usr/bin/pavol

I requisiti di questo script sono l’installazione di ruby:

sudo aptitude install ruby

mentre per l’utilizzo si rispecchia la seguente sintassi:

pavol +

aumenta il volume

pavol -

diminuisce il volume

pavol !

muta

Fonte: [lm]azy

This entry was posted on Monday, September 19th, 2011 at 11:29 and is filed under Generico. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.