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-- Authors: Randall Wald <randy@rwald.com>
-- License: GPL, version 2
-- Last Changed: Unknown
--
-- statusd_volume2.lua
-- Volume level and state information script
-- Written by Randall Wald
-- email: randy@rwald.com
-- Released under the GPL
--
-- Based on a public domain script written by Benjamin Sigonneau
--
-- This script uses "amixer" to find volume information. If you don't have
-- "amixer," this script will fail. Sorry.
-- Though this is labeled "statusd_volume2.lua", rename it to
-- "statusd_volume.lua" to make it work.
--
-- Available monitors:
-- %volume_level Volume level, as a percentage from 0% to 100%
-- %volume_state The string "" if unmuted, "MUTE " if muted
--
-- Example use:
-- template="[ %date || <other stuff> || vol: %volume_level %volume state]"
-- (note space between monitors but lack of space after %volume_state)
-- This will print
-- [ <Date> || <other stuff> || vol: 54% ]
-- when unmuted but
-- [ <Date> || <other stuff> || vol: 54% MUTE ]
-- when muted.
local function get_volume()
local f=io.popen('amixer','r')
local s=f:read('*all')
f:close()
local _, _, master_level, master_state = string.find(s, "%[(%d*%%)%] %[(%a*)%]")
local sound_state = ""
if master_state == "off" then
sound_state = "MUTE "
end
return master_level.."", sound_state..""
end
local function inform_volume(name, value)
if statusd ~= nil then
statusd.inform(name, value)
else
io.stdout:write(name..": "..value.."\n")
end
end
local function inform_state(value)
if statusd ~= nil then
statusd.inform("volume_state", value)
else
io.stdout:write("volume_state"..value.."\n")
end
end
if statusd ~= nil then
volume_timer = statusd.create_timer()
end
local function update_volume()
local master_level, sound_state = get_volume()
inform_volume("volume_level", master_level)
inform_volume("volume_state", sound_state)
if statusd ~= nil then
volume_timer:set(500, update_volume)
end
end
update_volume()
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