Class: Volay::Mixer::Alsa

Inherits:
Default
  • Object
show all
Defined in:
lib/volay/mixer/alsa.rb

Overview

Alsa class for playing with amixer

Constant Summary collapse

DEFAULT_VALUE = 
2

Instance Method Summary collapse

Methods inherited from Default

#max_value, #muted?, #percent, #value

Instance Method Details

#current ⇒ Object 



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# File 'lib/volay/mixer/alsa.rb', line 25

def current
  result = command('get Master')
  max_value = result.match(/ 0 - (\d+)/)[1].to_i
  current_percent = result.match(/\[([0-9]+)%\]\s+\[o(?:n|ff)\]/)[1].to_i
  current_value = ((current_percent * max_value) / 100).to_i
  current_state = result.match(/\[([a-z]+)\]/)[1].to_s

  { value: current_value,
    max_value: max_value,
    percent: current_percent,
    muted: current_state == 'on' ? false : true }
end

#down(value = DEFAULT_VALUE) ⇒ Object 



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# File 'lib/volay/mixer/alsa.rb', line 13

def down(value = DEFAULT_VALUE)
  command("-q set Master #{value}%-")
end

#toggle ⇒ Object 



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# File 'lib/volay/mixer/alsa.rb', line 21

def toggle
  command('-q set Master toggle')
end

#up(value = DEFAULT_VALUE) ⇒ Object 



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# File 'lib/volay/mixer/alsa.rb', line 9

def up(value = DEFAULT_VALUE)
  command("-q set Master #{value}%+")
end

#value=(value) ⇒ Object 



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# File 'lib/volay/mixer/alsa.rb', line 17

def value=(value)
  command("-q set Master #{value}%")
end