local fade_chain = {}
do
        local chain = AutoEffectChain.new(16, 9)
        local input0 = make_fade_input(chain)
        local input1 = make_fade_input(chain)
        local mix_effect = chain:add_effect(MixEffect.new(), input0.wb_effect, input1.wb_effect)
        chain:finalize()

        fade_chain:make = function() return {
                chain = chain,
                input0 = input0,
                input1 = input1,
                mix_effect = mix_effect
			}
        }
end
fade_chain:make()