Class: Volay::Mixer::Pulse

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

Overview

Pulse class for playing with pacmd command

Constant Summary collapse

DEFAULT_VALUE = 
2
MAX_VALUE = 
65_536

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Default

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

Constructor Details

#initialize ⇒ Pulse

Returns a new instance of Pulse.



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# File 'lib/volay/mixer/pulse.rb', line 15

def initialize
  @cards = {}
  refresh
end

Instance Attribute Details

#cards ⇒ Object

Returns the value of attribute cards.



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

def cards
  @cards
end

#default_sink_id ⇒ Object (readonly)

Returns the value of attribute default_sink_id.



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# File 'lib/volay/mixer/pulse.rb', line 12

def default_sink_id
  @default_sink_id
end

Instance Method Details

#change_card(newdefault) ⇒ Object

Change card

Parameters:

  • newdefault (Integer) —

    New default index



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# File 'lib/volay/mixer/pulse.rb', line 62

def change_card(newdefault)
  return unless @cards.key?(newdefault)

  # Change default sink
  command("set-default-sink #{@cards[newdefault]['sink']}")

  # Now to move all current playing stuff to the new sink....
  dump = command('list-sink-inputs').lines
  dump.each do |line|
    args = line.split
    # We need to find the item index for each playing stream
    if args[0] == 'index:'
      # And now to shift them all to the new sink.
      command("move-sink-input #{args[1]} #{@cards[newdefault]['sink']}")
    end
  end

  refresh
end

#current ⇒ Object 



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# File 'lib/volay/mixer/pulse.rb', line 48

def current
  {
    value: current_sink.nil? ? 0 : current_sink['volume'],
    max_value: MAX_VALUE,
    percent: current_sink.nil? ? 0 : volume_percent(current_sink['volume']),
    muted: current_sink.nil? ? true : current_sink['muted'] == 'yes'
  }
end

#down(value = DEFAULT_VALUE) ⇒ Object 



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# File 'lib/volay/mixer/pulse.rb', line 26

def down(value = DEFAULT_VALUE)
  set_volume(
    volume_percent(@cards[@default_sink_id]['volume']) - value
  )
end

#refresh ⇒ Object

Refresh cards data



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# File 'lib/volay/mixer/pulse.rb', line 85

def refresh
  cmd = command('dump')
  return unless cmd

  dump = cmd.lines
  dump.each do |line|
    args = line.split

    # We are using the id to actually enumerate all cards.
    if args[1] == 'module-alsa-card'
      number = args[2].sub('device_id="', '').sub('"', '').to_i
      @cards[number] = {}
      @cards[number]['name'] = args[3].sub('name="', '').sub('"', '')
    # we already have something in the array
    elsif @cards.keys.length.positive?
      set_data(args)
    end
  end

  set_long_names
end

#toggle ⇒ Object 



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# File 'lib/volay/mixer/pulse.rb', line 36

def toggle
  return if current_sink.nil?

  value = if current_sink['muted'] == 'yes'
            'no'
          else
            'yes'
          end
  current_sink['muted'] = value
  command("set-sink-mute #{@cards[@default_sink_id]['sink']} #{value}")
end

#up(value = DEFAULT_VALUE) ⇒ Object 



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# File 'lib/volay/mixer/pulse.rb', line 20

def up(value = DEFAULT_VALUE)
  set_volume(
    volume_percent(@cards[@default_sink_id]['volume']) + value
  )
end

#value=(value) ⇒ Object 



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# File 'lib/volay/mixer/pulse.rb', line 32

def value=(value)
  set_volume(value.to_i)
end