-- to the next.
local FADE_SIGNAL_NUM = 4
--- Last width/height/resolution for each channel, if we have it.
+-- Last width/height/frame rate for each channel, if we have it.
-- Note that unlike the values we get from Nageru, the resolution is per
-- frame and not per field, since we deinterlace.
local last_resolution = {}
function make_sbs_input(chain, signal, deint, hq)
local input = chain:add_live_input(not deint, deint) -- Override bounce only if not deinterlacing.
input:connect_signal(signal)
- local wb_effect = chain:add_effect(WhiteBalanceEffect.new())
local resample_effect = nil
local resize_effect = nil
else
resize_effect = chain:add_effect(ResizeEffect.new())
end
+ local wb_effect = chain:add_effect(WhiteBalanceEffect.new())
local padding_effect = chain:add_effect(IntegralPaddingEffect.new())
local input, wb_effect, resample_effect, last
if live then
input = chain:add_live_input(false, deint)
- wb_effect = chain:add_effect(WhiteBalanceEffect.new())
input:connect_signal(signal)
- last = wb_effect
+ last = input
else
input = chain:add_effect(ImageInput.new("bg.jpeg"))
last = input
last = resample_effect
end
+ -- Make sure to put the white balance after the scaling (usually more efficient).
+ if live then
+ wb_effect = chain:add_effect(WhiteBalanceEffect.new())
+ last = wb_effect
+ end
+
return {
input = input,
wb_effect = wb_effect,
local input = chain:add_live_input(false, input_deint)
input:connect_signal(0) -- First input card. Can be changed whenever you want.
- local wb_effect = chain:add_effect(WhiteBalanceEffect.new())
- chain:finalize(hq)
local resample_effect, resize_effect
if scale then
end
end
+ local wb_effect = chain:add_effect(WhiteBalanceEffect.new())
+ chain:finalize(hq)
+
return {
chain = chain,
input = input,
end
function needs_scale(signals, signal_num, width, height)
+ if signal_num == STATIC_SIGNAL_NUM then
+ -- We assume this is already correctly scaled at load time.
+ return false
+ end
+ assert(signal_num == INPUT0_SIGNAL_NUM or signal_num == INPUT1_SIGNAL_NUM)
return (signals:get_width(signal_num) ~= width or signals:get_height(signal_num) ~= height)
end
end
end
+-- API ENTRY POINT
-- 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()
return 4
end
+-- Helper function to write e.g. “720p60”. The difference between this
+-- and get_channel_resolution_raw() is that this one also can say that
+-- there's no signal.
+function get_channel_resolution(signal_num)
+ res = last_resolution[signal_num]
+ if (not res) or res.height <= 0 then
+ return "no signal"
+ end
+ if not res.has_signal then
+ if res.height == 525 then
+ -- Special mode for the USB3 cards.
+ return "no signal"
+ end
+ return get_channel_resolution_raw(res) .. ", no signal"
+ else
+ return get_channel_resolution_raw(res)
+ end
+end
+
-- Helper function to write e.g. “60” or “59.94”.
-function get_frame_rate(signal_num)
- local nom = last_resolution[signal_num].frame_rate_nom
- local den = last_resolution[signal_num].frame_rate_den
+function get_frame_rate(res)
+ local nom = res.frame_rate_nom
+ local den = res.frame_rate_den
if nom % den == 0 then
return nom / den
else
- return string.format("%.2f", num / den)
+ return string.format("%.2f", nom / den)
end
end
-- Helper function to write e.g. “720p60”.
-function get_channel_resolution(signal_num)
- if last_resolution[signal_num] then
- if last_resolution[signal_num].height == 0 or
- last_resolution[signal_num].height == 525 then
- return "no signal"
- elseif last_resolution[signal_num].interlaced then
- return last_resolution[signal_num].height .. "i" .. get_frame_rate(signal_num)
- else
- return last_resolution[signal_num].height .. "p" .. get_frame_rate(signal_num)
- end
+function get_channel_resolution_raw(res)
+ if res.interlaced then
+ return res.height .. "i" .. get_frame_rate(res)
else
- return "no signal"
+ return res.height .. "p" .. get_frame_rate(res)
end
end
+-- API ENTRY POINT
-- Returns the name for each additional channel (starting from 2).
-- Called at the start of the program, and then each frame for live
-- channels in case they change resolution.
end
end
+-- API ENTRY POINT
+-- Returns, given a channel number, which signal it corresponds to (starting from 0).
+-- Should return -1 if the channel does not correspond to a simple signal.
+-- (The information is used for whether right-click on the channel should bring up
+-- an input selector or not.)
+-- Called once for each channel, at the start of the program.
+-- Will never be called for live (0) or preview (1).
+function channel_signal(channel)
+ if channel == 2 then
+ return 0
+ elseif channel == 3 then
+ return 1
+ else
+ return -1
+ end
+end
+
+-- API ENTRY POINT
+-- Called every frame. Returns the color (if any) to paint around the given
+-- channel. Returns a CSS color (typically to mark live and preview signals);
+-- "transparent" is allowed.
+-- Will never be called for live (0) or preview (1).
+function channel_color(channel)
+ if channel_involved_in(channel, live_signal_num) then
+ return "#f00"
+ end
+ if channel_involved_in(channel, preview_signal_num) then
+ return "#0f0"
+ end
+ return "transparent"
+end
+
+function channel_involved_in(channel, signal_num)
+ if signal_num == INPUT0_SIGNAL_NUM then
+ return channel == 2
+ end
+ if signal_num == INPUT1_SIGNAL_NUM then
+ return channel == 3
+ end
+ if signal_num == SBS_SIGNAL_NUM then
+ return (channel == 2 or channel == 3)
+ end
+ if signal_num == STATIC_SIGNAL_NUM then
+ return (channel == 5)
+ end
+ if signal_num == FADE_SIGNAL_NUM then
+ return (channel_involved_in(channel, fade_src_signal) or
+ channel_involved_in(channel, fade_dst_signal))
+ end
+ return false
+end
+
+-- API ENTRY POINT
-- Returns if a given channel supports setting white balance (starting from 2).
-- Called only once for each channel, at the start of the program.
function supports_set_wb(channel)
return channel == 2 or channel == 3
end
+-- API ENTRY POINT
-- Gets called with a new gray point when the white balance is changing.
-- The color is in linear light (not sRGB gamma).
function set_wb(channel, red, green, blue)
end
end
+-- API ENTRY POINT
-- Called every frame.
function get_transitions(t)
finish_transitions(t)
if live_signal_num == preview_signal_num then
+ -- No transitions possible.
return {}
end
return {"Cut"}
end
+-- API ENTRY POINT
+-- Called when the user clicks a transition button.
function transition_clicked(num, t)
if num == 0 then
-- Cut.
end
end
+-- API ENTRY POINT
function channel_clicked(num)
preview_signal_num = num
end
+-- API ENTRY POINT
-- Called every frame. Get the chain for displaying at input <num>,
-- where 0 is live, 1 is preview, 2 is the first channel to display
-- in the bottom bar, and so on up to num_channels()+1. t is the
width = signals:get_width(signal_num),
height = signals:get_height(signal_num),
interlaced = signals:get_interlaced(signal_num),
+ has_signal = signals:get_has_signal(signal_num),
frame_rate_nom = signals:get_frame_rate_nom(signal_num),
frame_rate_den = signals:get_frame_rate_den(signal_num)
}
local input1_scale = needs_scale(signals, fade_dst_signal, width, height)
local chain = fade_chains[input0_type][input0_scale][input1_type][input1_scale][true]
prepare = function()
- if input0_type == "live" then
+ if input0_type == "live" or input0_type == "livedeint" then
chain.input0.input:connect_signal(fade_src_signal)
set_neutral_color_from_signal(chain.input0.wb_effect, fade_src_signal)
end
set_scale_parameters_if_needed(chain.input0, width, height)
- if input1_type == "live" then
+ if input1_type == "live" or input1_type == "livedeint" then
chain.input1.input:connect_signal(fade_dst_signal)
set_neutral_color_from_signal(chain.input1.wb_effect, fade_dst_signal)
end
local srcy0 = 0.0
local srcy1 = 1.0
+ padding_effect:set_int("width", screen_width)
+ padding_effect:set_int("height", screen_height)
+
-- Cull.
if x0 > screen_width or x1 < 0.0 or y0 > screen_height or y1 < 0.0 then
resample_effect:set_int("width", 1)
projects / nageru / blobdiff