-- C++ side and you generally just build chains.
io.write("hello from lua\n");
--- A chain to show input 0 on screen.
-local input0_chain = EffectChain.new(16, 9);
---input0_chain:add_input(Inputs.create(0)); -- TODO: We probably want something more fluid.
-local preview_input0 = input0_chain:add_live_input();
-preview_input0:connect_signal(0); -- First input card. Can be changed whenever you want.
-input0_chain:finalize(false);
-
-- The main live chain. Currently just about input 0 with some color correction.
local main_chain = EffectChain.new(16, 9);
--- local input0 = main_chain:add_input(Inputs.create(0));
local input0 = main_chain:add_live_input();
input0:connect_signal(0);
local wb_effect = main_chain:add_effect(WhiteBalanceEffect.new(), input0);
-- local resample_effect = main_chain.add_effect(ResampleEffect.new(), input0);
-- local padding_effect = main_chain.add_effect(IntegralPaddingEffect.new());
+-- A chain to show a single input on screen.
+local simple_chain = EffectChain.new(16, 9);
+local simple_chain_input = simple_chain:add_live_input();
+simple_chain_input:connect_signal(0); -- First input card. Can be changed whenever you want.
+simple_chain:finalize(false);
+
-- Returns the number of outputs in addition to the live (0) and preview (1).
-- Called only once, at the start of the program.
function num_channels()
-- NOTE: The chain returned must be finalized with the Y'CbCr flag
-- if and only if num==0.
function get_chain(num, t, width, height)
- if num == 0 then
+ if num == 0 then -- Live.
prepare = function()
- -- io.write("prepare is being called back\n");
input0:connect_signal(1);
wb_effect:set_float("output_color_temperature", 3500.0 + t * 100.0);
end
return main_chain, prepare;
end
- if num == 1 then
+ if num == 1 then -- Preview.
+ prepare = function()
+ simple_chain_input:connect_signal(0);
+ end
+ return simple_chain, prepare;
+ end
+ if num == 2 then
+ prepare = function()
+ simple_chain_input:connect_signal(0);
+ end
+ return simple_chain, prepare;
+ end
+ if num == 3 then
prepare = function()
+ simple_chain_input:connect_signal(1);
end
- return input0_chain, prepare;
+ return simple_chain, prepare;
end
end