contrib/statusd/statusd_volume.lua

   1 -- Authors: Benjamin Sigonneau
   2 -- License: Public domain
   3 -- Last Changed: Unknown
   4 --
   5 -- Public domain, written by Benjamin Sigonneau
   6 -- Allows displaying volume information in the statusbar.
   7 --
   8 -- add some of the following fields into your template in cfg_statusbar.lua:
   9 --     %volume_master
  10 --     %volume_pcm
  11
  12 local unknown = "??", "??"
  13
  14 local function get_volume()
  15    local f=io.popen('aumix -q','r')
  16    local s=f:read('*all')
  17    f:close()
  18    local _, _, master, pcm =
  19       string.find(s, "vol[0-9]? (%d*), .*\n"..
  20                      "pcm[0-9]? (%d*), .*\n"
  21                )
  22
  23    if not master then
  24       return unknow
  25    elseif not pcm then
  26       return unknow
  27    end
  28
  29   return master.."%", pcm.."%"
  30 end
  31
  32
  33 local function inform(key, value)
  34    statusd.inform("volume_"..key, value)
  35 end
  36
  37
  38 local volume_timer = statusd.create_timer()
  39
  40 local function update_volume()
  41    local master, pcm = get_volume()
  42    inform("master", master)
  43    inform("pcm", pcm)
  44    -- update every 10 seconds
  45    volume_timer:set(10*1000, update_volume)
  46 end
  47
  48 update_volume()
  49