mpv: Move into multimedia module

multimedia/.config/mpv/scripts/battery.lua

@@ -0,0 +1,25 @@
+-- If the laptop is on battery, the profile 'lq' will be loaded; otherwise 'hq' is used
+--
+local lqprofile = "lowquality"
+local hqprofile = "highquality"
+
+local function powerstate()
+    local f = io.open("/sys/class/power_supply/AC/online")
+    if f == nil then return end
+    local t = f:read("*n")
+    f:close()
+    return t
+end
+
+local function adjust()
+    local state = powerstate()
+    -- this actually overrides automatically applied profiles
+    -- like 'protocol.http'
+    if state == 0 then
+        mp.msg.info("Running on battery, setting low-quality options.")
+        mp.set_property("profile", lqprofile)
+    else
+        mp.msg.info("Not running on battery, setting high-quality options.")
+    end
+end
+mp.add_hook("on_load", 1, adjust)