mpv script - remember audio volume

remember-volume.lua

local filepath = mp.command_native({"expand-path", "~~/volume"})

local loadfile = io.open(filepath, "r")

if loadfile then
	set_volume = string.sub(loadfile:read(), 8)
	loadfile:close()
	mp.set_property_number("volume", set_volume)
end

mp.register_event("shutdown", 
	function()
		local savefile  = io.open(filepath, "w+")
		savefile:write("volume=" .. mp.get_property("volume"), "\n")    
		savefile:close()
	end
)

1. local filepath = mp.command_native({"expand-path", "~~/volume"})

The above line works fine for mpv on Linux,
but It doesn't work well with mpv on Windows.

In order to work normally on both Windows and Linux, you need to modify it as follows.

1. local filepath = mp.command_native({"expand-path", "~/.mpv_volume"})