MediaPlayer grab fft

example.lua

local mp = MediaPlayer.Create( "global" )

-- only allow media which supports FFTs (remove this if you don't want it)
mp.ServiceWhitelist = { 'af', 'sc' }

if CLIENT then
	
	local function audioPostDraw( media )
		local fft = media.fft
		if not fft then return end
		
		-- do stuff
	end

	mp:on( "mediaChanged", function( media )
		if not media then return end
		
		if media.Id == "af" then
			-- override audio media PostDraw function with our own
			media.PostDraw = audioPostDraw
		end
	end )

end