mirror of
https://github.com/ksyasuda/rice.git
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84 lines
2.7 KiB
Lua
84 lines
2.7 KiB
Lua
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-- Simple script for configurable TV out activation and/or deactivation on mpv playback
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--
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-- Intended to activate TV on mpv startup and deactivate TV on mpv close if TV is connected.
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-- The script executes fully configurable shell sequences (e.g. xrandr on linux)
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-- Can also be used for activating ambient lighting while watching etc ...
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--
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-- Note: There are implicit security issues due to a nature of direct execution
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-- of command line tools without any sanitization ...
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--
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-- TV configurable options:
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-- test ... check if TV is connected (result is non empty, exitcode 0)
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-- on ... executed once on mpv player startup (TV ON)
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-- off ... executed once on mpv player shutdown (TV OFF)
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--
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-- Note: xrandr seems to have problem turning off and on devices on single execution.
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-- Therefore it is wise to split execution to multiple commands, for example:
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-- problem : xrandr --output LVDS1 --off --output TV1 --auto
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-- works ok: xrandr --output LVDS1 --off && xrandr --output TV1 --auto
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--
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-- To customize configuration place tv.conf into ~/.config/mpv/lua-settings/ and edit
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--
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-- Place script into ~/.config/mpv/scripts/ for autoload
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--
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-- GitHub: https://github.com/blue-sky-r/mpv/tree/master/scripts
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local options = require("mp.options")
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local utils = require("mp.utils")
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-- defaults
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local cfg = {
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test = "xrandr | grep 'VGA1 connected'",
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on = 'xrandr --output LVDS1 --off && xrandr --output VGA1 --mode 720x400 --output TV1 --auto',
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off = 'xrandr --output LVDS1 --auto'
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}
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-- string v is empty
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local function empty(v)
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return not v or v == '' or string.find(v,"^%s*$")
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end
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-- evaluate shell condition by executing cmd
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local function test(cmd)
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-- return success if there is nothing to test
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if empty(cmd) then return true end
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-- get only exitcode
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local exitcode = io.popen(cmd..' >/dev/null 2>&1; echo $?'):read('*n')
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-- log
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mp.msg.info("test '" .. cmd .. "' returned exitcode:"..exitcode)
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-- success if exitcode is zero
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return exitcode == 0
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end
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-- execute shell cmd
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local function exec(cmd)
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-- return if there is nothing to execute
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if empty(cmd) then return end
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-- get stdout and stderr combined
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local stdcom = io.popen(cmd..' 2>&1'):read('*all')
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-- log
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mp.msg.info("exec '" .. cmd .. "'")
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if stdcom then mp.msg.verbose(stdcom) end
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end
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-- read lua-settings/tv.conf
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options.read_options(cfg, 'tv')
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-- log active config
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mp.msg.verbose('cfg = '..utils.to_string(cfg))
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-- execute only if test condition
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if test(cfg.test) then
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-- optional TV.ON execute now
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if not empty(cfg.on) then exec(cfg.on) end
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-- optional TV.OFF execute on shutdown
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if not empty(cfg.off) then
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mp.register_event("shutdown",
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function()
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exec(cfg.off)
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end
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)
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end
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end
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