+local resample_effect = main_chain:add_effect(ResampleEffect.new(), input0);
+resample_effect:set_int("width", 320);
+resample_effect:set_int("height", 180);
+local padding_effect = main_chain:add_effect(IntegralPaddingEffect.new(), resample_effect);
+padding_effect:set_int("width", 1280);
+padding_effect:set_int("height", 720);
+padding_effect:set_int("left", 30);
+padding_effect:set_int("top", 60);
+local wb_effect = main_chain:add_effect(WhiteBalanceEffect.new(), padding_effect);