Re: How do you people handle sound? Show your solution

[Clément DÉMOULINS]

On 19/10/2012 02:42, Juan Antonio Zuloaga Mellino wrote:
> I can't remember if I made it, stole it or both, but this is my ugly
> workaround for pulse audio
> 
> calling paMuteToggle() doest what you'd expect.
> With no parameters changes all the sinks to the opposite state of the
> first sink.
> You can use a sink as an argument.
> 
> HOW TO USE IT:
> 
> require("pamute")
> [...]
> awful.key({ }, "XF86AudioMute",function () paMuteToggle() end ),
> 
> 
> pamute.lua attached.
> 

I write a little program to control the sound volume of pulseaudio:
https://github.com/cdemoulins/pamixer

% pamixer --help
Allowed options:
  -h [ --help ]         help message
  -s [ --sink ] arg     choose a different sink than the default
  --source arg          choose a different source than the default
  --default-source      select the default source
  --get-volume          get the current volume
  --set-volume arg      set the volume
  --increase arg        increase the volume
  --decrease arg        decrease the volume
  --toggle-mute         switch between mute and unmute
  --mute                set mute
  --unmute              unset mute
  --get-mute            display true if the volume is mute, false otherwise
  --list-sinks          list the sinks
  --list-sources        list the sources

Using this program i create a widget to display the current volume and
add some keybinding to control the volume.
My module “pulseaudio.lua” is for the git version only.

Clément

-- 
Clef GPG : 0xDD51E028

local awful = require("awful")
local wibox = require("wibox")
local naughty = require("naughty")
local util = require("util")

local pulseaudio = {}
local label = wibox.widget.textbox()
local widget = wibox.widget.textbox()
pulseaudio.widget = wibox.layout.fixed.horizontal()
pulseaudio.widget:add(label)
pulseaudio.widget:add(widget)

local volume = 0
local muted = false
local notification_id = nil
local muted_notification_id = nil
local pamixer = "pamixer"
local sink = 0
local timer = timer

local muted_icon = "/home/clement/.config/awesome/current_theme/icons/audio-volume-muted.png"
local off_icon = "/home/clement/.config/awesome/current_theme/icons/audio-volume-off.png"
local low_icon = "/home/clement/.config/awesome/current_theme/icons/audio-volume-low.png"
local medium_icon = "/home/clement/.config/awesome/current_theme/icons/audio-volume-medium.png"
local high_icon = "/home/clement/.config/awesome/current_theme/icons/audio-volume-high.png"

local function update()
    local icon = "<span font='15'>🔉</span>  " -- speaker character
    if muted then
        icon = "<span font='10'>🔇</span>  " -- mute speaker character
    end
    local volume_text = util.textcolor(string.format("%02d%%", volume), util.gradient("#44FF44", "#FF4444", 30, 120, volume))

    label:set_markup(icon)
    widget:set_markup(volume_text)
end

local function notify()
    local volume_icon = high_icon
    if volume == 0 then
        volume_icon = off_icon
    elseif volume <= 30 then
        volume_icon = low_icon
    elseif volume <= 60 then
        volume_icon = medium_icon
    end
    notification_id = naughty.notify({ text="Volume "..volume.."%", title="Volume", icon=volume_icon, replaces_id=notification_id }).id
end

local volume_timer = timer { timeout=3 }
volume_timer:connect_signal("timeout", function()
    pulseaudio:update()
end)
function pulseaudio:register()
    volume_timer:start()
end

function pulseaudio:update()
    volume = tonumber(awful.util.pread(pamixer.." -s "..sink.." --get-volume") or 0)
    muted = awful.util.pread(pamixer.." -s "..sink.." --get-mute") == "true"
    update()
end

function pulseaudio:volume_up()
    volume = tonumber(awful.util.pread(pamixer.." -s "..sink.." --increase 5 --get-volume") or 0)
    if volume > 150 then
        volume = tonumber(awful.util.pread(pamixer.." -s "..sink.." --set-volume 150 --get-volume") or 0)
    end
    update()
    notify()
end

function pulseaudio:volume_down()
    volume = tonumber(awful.util.pread(pamixer.." -s "..sink.." --decrease 5 --get-volume") or 0)
    update()
    notify()
end

function pulseaudio:toggle_mute()
    muted = awful.util.pread(pamixer.." -s "..sink.." --toggle-mute --get-mute") == "false"
    update()
    if muted == true then
        muted_notification_id = naughty.notify({ text="Muted", title="Volume", icon=muted_icon, replaces_id=muted_notification_id }).id
    else
        muted_notification_id = naughty.notify({ text="Unmuted", title="Volume", icon=high_icon, replaces_id=muted_notification_id }).id
        notify()
    end
end

--pulseaudio.widget:connect_signal("button::press", function()
    --naughty.notify({text="Test", title="Titre"})
    --pulseaudio.toggle_mute()
--end)
pulseaudio.widget:buttons(awful.util.table.join(
                        awful.button({ }, 1, pulseaudio.toggle_mute),
                        awful.button({ }, 4, pulseaudio.volume_up),
                        awful.button({ }, 5, pulseaudio.volume_down)
))

return pulseaudio

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