local fade_src_signal = 0
local fade_dst_signal = 0
-local input0_neutral_color = {0.5, 0.5, 0.5}
-local input1_neutral_color = {0.5, 0.5, 0.5}
+local neutral_colors = {
+ {0.5, 0.5, 0.5}, -- Input 0.
+ {0.5, 0.5, 0.5} -- Input 1.
+}
local live_signal_num = 0
local preview_signal_num = 1
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,
-- 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)
+ assert(is_plain_signal(signal_num))
return (signals:get_width(signal_num) ~= width or signals:get_height(signal_num) ~= height)
end
return 4
end
+function is_plain_signal(num)
+ return num == INPUT0_SIGNAL_NUM or num == INPUT1_SIGNAL_NUM
+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
end
-- Helper function to write e.g. “720p60”.
-function get_channel_resolution(signal_num)
- if last_resolution[signal_num] then
- if not last_resolution[signal_num].has_signal 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
-- Called at the start of the program, and then each frame for live
-- channels in case they change resolution.
function channel_name(channel)
- if channel == 2 then
- return "Input 1 (" .. get_channel_resolution(0) .. ")"
- elseif channel == 3 then
- return "Input 2 (" .. get_channel_resolution(1) .. ")"
- elseif channel == 4 then
+ local signal_num = channel - 2
+ if is_plain_signal(signal_num) then
+ return "Input " .. (signal_num + 1) .. " (" .. get_channel_resolution(signal_num) .. ")"
+ elseif signal_num == SBS_SIGNAL_NUM then
return "Side-by-side"
- elseif channel == 5 then
+ elseif signal_num == STATIC_SIGNAL_NUM then
return "Static picture"
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)
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 is_plain_signal(signal_num) then
+ return channel == (signal_num + 2)
+ 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
+ return is_plain_signal(channel - 2)
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)
- if channel == 2 then
- input0_neutral_color = { red, green, blue }
- elseif channel == 3 then
- input1_neutral_color = { red, green, blue }
+ if is_plain_signal(channel - 2) then
+ neutral_colors[channel - 2 + 1] = { red, green, blue }
end
end
finish_transitions(t)
if live_signal_num == preview_signal_num then
+ -- No transitions possible.
return {}
end
return {"Cut"}
end
- if (live_signal_num == INPUT0_SIGNAL_NUM or
- live_signal_num == INPUT1_SIGNAL_NUM or
- live_signal_num == STATIC_SIGNAL_NUM) and
- (preview_signal_num == INPUT0_SIGNAL_NUM or
- preview_signal_num == INPUT1_SIGNAL_NUM or
- preview_signal_num == STATIC_SIGNAL_NUM) then
+ if (is_plain_signal(live_signal_num) or live_signal_num == STATIC_SIGNAL_NUM) and
+ (is_plain_signal(preview_signal_num) or preview_signal_num == STATIC_SIGNAL_NUM) then
return {"Cut", "", "Fade"}
end
-- Various zooms.
- if live_signal_num == SBS_SIGNAL_NUM and
- (preview_signal_num == INPUT0_SIGNAL_NUM or preview_signal_num == INPUT1_SIGNAL_NUM) then
+ if live_signal_num == SBS_SIGNAL_NUM and is_plain_signal(preview_signal_num) then
return {"Cut", "Zoom in"}
- elseif (live_signal_num == INPUT0_SIGNAL_NUM or live_signal_num == INPUT1_SIGNAL_NUM) and
- preview_signal_num == SBS_SIGNAL_NUM then
+ elseif is_plain_signal(live_signal_num) and preview_signal_num == SBS_SIGNAL_NUM then
return {"Cut", "Zoom out"}
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.
return
end
- if (live_signal_num == INPUT0_SIGNAL_NUM and preview_signal_num == INPUT1_SIGNAL_NUM) or
- (live_signal_num == INPUT1_SIGNAL_NUM and preview_signal_num == INPUT0_SIGNAL_NUM) then
+ if (is_plain_signal(live_signal_num) and is_plain_signal(preview_signal_num)) then
-- We can't zoom between these. Just make a cut.
io.write("Cutting from " .. live_signal_num .. " to " .. live_signal_num .. "\n")
local temp = live_signal_num
return
end
- if live_signal_num == SBS_SIGNAL_NUM and
- (preview_signal_num == INPUT0_SIGNAL_NUM or preview_signal_num == INPUT1_SIGNAL_NUM) then
+ if live_signal_num == SBS_SIGNAL_NUM and is_plain_signal(preview_signal_num) then
-- Zoom in from SBS to single.
transition_start = t
transition_end = t + 1.0
zoom_dst = 1.0
zoom_poi = preview_signal_num
preview_signal_num = SBS_SIGNAL_NUM
- elseif (live_signal_num == INPUT0_SIGNAL_NUM or live_signal_num == INPUT1_SIGNAL_NUM) and
- preview_signal_num == SBS_SIGNAL_NUM then
+ elseif is_plain_signal(live_signal_num) and preview_signal_num == SBS_SIGNAL_NUM then
-- Zoom out from single to SBS.
transition_start = t
transition_end = t + 1.0
-- Fade.
if (live_signal_num ~= preview_signal_num) and
- (live_signal_num == INPUT0_SIGNAL_NUM or
- live_signal_num == INPUT1_SIGNAL_NUM or
+ (is_plain_signal(live_signal_num) or
live_signal_num == STATIC_SIGNAL_NUM) and
- (preview_signal_num == INPUT0_SIGNAL_NUM or
- preview_signal_num == INPUT1_SIGNAL_NUM or
+ (is_plain_signal(preview_signal_num) or
preview_signal_num == STATIC_SIGNAL_NUM) then
transition_start = t
transition_end = t + 1.0
last_resolution = input_resolution
if num == 0 then -- Live.
- if live_signal_num == INPUT0_SIGNAL_NUM or live_signal_num == INPUT1_SIGNAL_NUM then -- Plain input.
+ if is_plain_signal(live_signal_num) then -- Plain inputs.
local input_type = get_input_type(signals, live_signal_num)
local input_scale = needs_scale(signals, live_signal_num, width, height)
local chain = simple_chains[input_type][input_scale][true]
prepare = function()
chain.input:connect_signal(INPUT0_SIGNAL_NUM)
set_scale_parameters_if_needed(chain, width, height)
- set_neutral_color(chain.wb_effect, input0_neutral_color)
+ set_neutral_color(chain.wb_effect, neutral_colors[1])
end
return chain.chain, prepare
end
end
-- Individual preview inputs.
- if num == INPUT0_SIGNAL_NUM + 2 then
- local input_type = get_input_type(signals, INPUT0_SIGNAL_NUM)
- local input_scale = needs_scale(signals, INPUT0_SIGNAL_NUM, width, height)
- local chain = simple_chains[input_type][input_scale][false]
- prepare = function()
- chain.input:connect_signal(INPUT0_SIGNAL_NUM)
- set_scale_parameters_if_needed(chain, width, height)
- set_neutral_color(chain.wb_effect, input0_neutral_color)
- end
- return chain.chain, prepare
- end
- if num == INPUT1_SIGNAL_NUM + 2 then
- local input_type = get_input_type(signals, INPUT1_SIGNAL_NUM)
- local input_scale = needs_scale(signals, INPUT1_SIGNAL_NUM, width, height)
+ if is_plain_signal(num - 2) then
+ local signal_num = num - 2
+ local input_type = get_input_type(signals, signal_num)
+ local input_scale = needs_scale(signals, signal_num, width, height)
local chain = simple_chains[input_type][input_scale][false]
prepare = function()
- chain.input:connect_signal(INPUT1_SIGNAL_NUM)
+ chain.input:connect_signal(signal_num)
set_scale_parameters_if_needed(chain, width, height)
- set_neutral_color(chain.wb_effect, input1_neutral_color)
+ set_neutral_color(chain.wb_effect, neutral_colors[signal_num + 1])
end
return chain.chain, prepare
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)
- resample_effect:set_int("height", 1)
- resample_effect:set_float("zoom_x", screen_width)
- resample_effect:set_float("zoom_y", screen_height)
+ if resample_effect ~= nil then
+ resample_effect:set_int("width", 1)
+ resample_effect:set_int("height", 1)
+ resample_effect:set_float("zoom_x", screen_width)
+ resample_effect:set_float("zoom_y", screen_height)
+ else
+ resize_effect:set_int("width", 1)
+ resize_effect:set_int("height", 1)
+ end
padding_effect:set_int("left", screen_width + 100)
padding_effect:set_int("top", screen_height + 100)
return
function prepare_sbs_chain(chain, t, screen_width, screen_height, input_resolution)
chain.input0.input:connect_signal(0)
chain.input1.input:connect_signal(1)
- set_neutral_color(chain.input0.wb_effect, input0_neutral_color)
- set_neutral_color(chain.input1.wb_effect, input1_neutral_color)
+ set_neutral_color(chain.input0.wb_effect, neutral_colors[1])
+ set_neutral_color(chain.input1.wb_effect, neutral_colors[2])
-- First input is positioned (16,48) from top-left.
local width0 = round(848 * screen_width/1280.0)
end
function set_neutral_color_from_signal(effect, signal)
- if signal == INPUT0_SIGNAL_NUM then
- set_neutral_color(effect, input0_neutral_color)
- else
- set_neutral_color(effect, input1_neutral_color)
+ if is_plain_signal(signal) then
+ set_neutral_color(effect, neutral_colors[signal - INPUT0_SIGNAL_NUM + 1])
end
end
function calc_fade_progress(t, transition_start, transition_end)
local tt = (t - transition_start) / (transition_end - transition_start)
if tt < 0.0 then
- tt = 0.0
+ return 0.0
elseif tt > 1.0 then
- tt = 1.0
+ return 1.0
end
-- Make the fade look maybe a tad more natural, by pumping it
projects / nageru / blobdiff