From: Steinar H. Gunderson Date: Sat, 22 Apr 2017 08:40:39 +0000 (+0200) Subject: Add the Nageru theme. X-Git-Url: https://git.sesse.net/?a=commitdiff_plain;h=7034d883f182b182bfe3228e6390ffb1be91bbc4;p=ultimatescore Add the Nageru theme. --- diff --git a/nageru/tfk_pause.png b/nageru/tfk_pause.png new file mode 100644 index 0000000..d74a977 Binary files /dev/null and b/nageru/tfk_pause.png differ diff --git a/nageru/ultimate.lua b/nageru/ultimate.lua new file mode 100644 index 0000000..ceaef45 --- /dev/null +++ b/nageru/ultimate.lua @@ -0,0 +1,736 @@ +-- Nageru theme for TFK mini-tournament 2017, based on the default theme. + +local transition_start = -2.0 +local transition_end = -1.0 +local transition_type = 0 +local transition_src_signal = 0 +local transition_dst_signal = 0 + +local neutral_colors = { + {0.5, 0.5, 0.5}, -- Input 0. + {0.5, 0.5, 0.5}, -- Input 1. + {0.5, 0.5, 0.5} -- Input 2. +} + +local overlay_transition_start = -2.0 +local overlay_transition_end = -1.0 +local overlay_alpha_src = 0.0 +local overlay_alpha_dst = 1.0 +local overlay_enabled = false + +local live_signal_num = 0 +local preview_signal_num = 1 + +-- Valid values for live_signal_num and preview_signal_num. +local INPUT0_SIGNAL_NUM = 0 +local INPUT1_SIGNAL_NUM = 1 +local INPUT2_SIGNAL_NUM = 2 +local STATIC_SIGNAL_NUM = 3 + +-- Preview-only signal showing the current signal with the overlay. +-- Not valid for live_signal_num! +local OVERLAY_SIGNAL_NUM = 4 + +-- Valid values for transition_type. (Cuts are done directly, so they need no entry.) +local NO_TRANSITION = 0 +local FADE_TRANSITION = 2 + +-- 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 = {} + +local caspar_input = VideoInput.new("unix:///tmp/caspar.sock") +caspar_input:change_rate(2.0) + +-- Utility function to help creating many similar chains that can differ +-- in a free set of chosen parameters. +function make_cartesian_product(parms, callback) + return make_cartesian_product_internal(parms, callback, 1, {}) +end + +function make_cartesian_product_internal(parms, callback, index, args) + if index > #parms then + return callback(unpack(args)) + end + local ret = {} + for _, value in ipairs(parms[index]) do + args[index] = value + ret[value] = make_cartesian_product_internal(parms, callback, index + 1, args) + end + return ret +end + +-- An overlay with variable alpha. +function make_overlay(chain, base) + local image = chain:add_video_input(caspar_input, false) + local multiply_effect = chain:add_effect(MultiplyEffect.new()) + local overlay_effect = chain:add_effect(OverlayEffect.new(), base, multiply_effect) + return { + image = image, + multiply_effect = multiply_effect, + overlay_effect = overlay_effect + } +end + +function possibly_make_overlay(has_overlay, chain, base) + if has_overlay == true then + return make_overlay(chain, base) + else + return nil + end +end + +function make_fade_input(chain, signal, live, deint, scale) + local input, wb_effect, resample_effect, last + if live then + input = chain:add_live_input(false, deint) + input:connect_signal(signal) + last = input + else + input = chain:add_effect(ImageInput.new("tfk_pause.png")) + last = input + end + + -- If we cared about this for the non-main inputs, we would have + -- checked hq here and invoked ResizeEffect instead. + if scale then + resample_effect = chain:add_effect(ResampleEffect.new()) + 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, + resample_effect = resample_effect, + last = last + } +end + +-- A chain to fade between two inputs, of which either can be a picture +-- or a live input. In practice only used live, but we still support the +-- hq parameter. +function make_fade_chain(input0_live, input0_deint, input0_scale, input1_live, input1_deint, input1_scale, has_overlay, hq) + local chain = EffectChain.new(16, 9) + + local input0 = make_fade_input(chain, INPUT0_SIGNAL_NUM, input0_live, input0_deint, input0_scale) + local input1 = make_fade_input(chain, INPUT1_SIGNAL_NUM, input1_live, input1_deint, input1_scale) + + local mix_effect = chain:add_effect(MixEffect.new(), input0.last, input1.last) + local overlay = possibly_make_overlay(has_overlay, chain, mix_effect) + + chain:finalize(hq) + + return { + chain = chain, + input0 = input0, + input1 = input1, + mix_effect = mix_effect, + overlay = overlay + } +end + +-- Chains to fade between two inputs, in various configurations. +local fade_chains = make_cartesian_product({ + {"static", "live", "livedeint"}, -- input0_type + {true, false}, -- input0_scale + {"static", "live", "livedeint"}, -- input1_type + {true, false}, -- input1_scale + {true, false}, -- has_overlay + {true} -- hq +}, function(input0_type, input0_scale, input1_type, input1_scale, has_overlay, hq) + local input0_live = (input0_type ~= "static") + local input1_live = (input1_type ~= "static") + local input0_deint = (input0_type == "livedeint") + local input1_deint = (input1_type == "livedeint") + return make_fade_chain(input0_live, input0_deint, input0_scale, input1_live, input1_deint, input1_scale, has_overlay, hq) +end) + +-- A chain to show a single input on screen. +function make_simple_chain(input_deint, input_scale, has_overlay, hq) + local chain = EffectChain.new(16, 9) + + local input = chain:add_live_input(false, input_deint) + input:connect_signal(0) -- First input card. Can be changed whenever you want. + + local resample_effect, resize_effect + if scale then + if hq then + resample_effect = chain:add_effect(ResampleEffect.new()) + else + resize_effect = chain:add_effect(ResizeEffect.new()) + end + end + + local wb_effect = chain:add_effect(WhiteBalanceEffect.new()) + local overlay = possibly_make_overlay(has_overlay, chain, wb_effect) + + chain:finalize(hq) + + return { + chain = chain, + input = input, + wb_effect = wb_effect, + resample_effect = resample_effect, + resize_effect = resize_effect, + overlay = overlay + } +end + +-- Make all possible combinations of single-input chains. +local simple_chains = make_cartesian_product({ + {"live", "livedeint"}, -- input_type + {true, false}, -- input_scale + {true, false}, -- has_overlay + {true, false} -- hq +}, function(input_type, input_scale, has_overlay, hq) + local input_deint = (input_type == "livedeint") + return make_simple_chain(input_deint, input_scale, has_overlay, hq) +end) + +-- A chain to show a single static picture on screen. +local static_chains = make_cartesian_product({ + {true, false}, -- has_overlay + {true, false} -- hq +}, function(has_overlay, hq) + local chain = EffectChain.new(16, 9) + local chain_input = chain:add_effect(ImageInput.new("tfk_pause.png")) + local overlay = possibly_make_overlay(has_overlay, chain, chain_input) + + chain:finalize(hq) + return { + chain = chain, + overlay = overlay + } +end) + +-- A chain to show the overlay and nothing more. LQ only, +-- since it is not a valid live signal. +local overlay_chain_lq = EffectChain.new(16, 9) +local overlay_chain_lq_input = overlay_chain_lq:add_video_input(caspar_input, false) +overlay_chain_lq:finalize(false) + +-- Used for indexing into the tables of chains. +function get_input_type(signals, signal_num) + if signal_num == STATIC_SIGNAL_NUM then + return "static" + elseif signals:get_interlaced(signal_num) then + return "livedeint" + else + return "live" + end +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(is_plain_signal(signal_num)) + return (signals:get_width(signal_num) ~= width or signals:get_height(signal_num) ~= height) +end + +function set_scale_parameters_if_needed(chain_or_input, width, height) + if chain_or_input.resample_effect then + chain_or_input.resample_effect:set_int("width", width) + chain_or_input.resample_effect:set_int("height", height) + elseif chain_or_input.resize_effect then + chain_or_input.resize_effect:set_int("width", width) + chain_or_input.resize_effect:set_int("height", height) + 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 5 +end + +function is_plain_signal(num) + return num >= INPUT0_SIGNAL_NUM and num <= INPUT2_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 not res.is_connected then + return "disconnected" + end + if 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(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", nom / den) + end +end + +-- Helper function to write e.g. “720p60”. +function get_channel_resolution_raw(res) + if res.interlaced then + return res.height .. "i" .. get_frame_rate(res) + else + 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. +function channel_name(channel) + 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 == STATIC_SIGNAL_NUM then + return "Static picture" + elseif signal_num == OVERLAY_SIGNAL_NUM then + return "Overlay" + 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 transition_type ~= NO_TRANSITION then + if channel_involved_in(channel, transition_src_signal) or + channel_involved_in(channel, transition_dst_signal) then + return "#f00" + end + else + if channel_involved_in(channel, live_signal_num) then + return "#f00" + end + 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 == STATIC_SIGNAL_NUM then + return (channel == 5) + 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 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 is_plain_signal(channel - 2) then + neutral_colors[channel - 2 + 1] = { red, green, blue } + end +end + +function finish_transitions(t) + if transition_type ~= NO_TRANSITION and t >= transition_end then + live_signal_num = transition_dst_signal + transition_type = NO_TRANSITION + end + + -- Disable the overlay if it is no longer visible. + if overlay_enabled and t > overlay_transition_end and overlay_alpha_dst == 0.0 then + overlay_enabled = false + print("Turning off overlay") + end +end + +function in_transition(t) + return t >= transition_start and t <= transition_end +end + +-- API ENTRY POINT +-- Called every frame. +function get_transitions(t) + if preview_signal_num == OVERLAY_SIGNAL_NUM then + if t < overlay_transition_end then + -- Fade in progress. + return {} + end + if overlay_enabled then + return {"Overlay off", "", "Fade ovl out"} + else + return {"Overlay on", "", "Fade ovl in"} + end + end + + if in_transition(t) then + -- Transition already in progress, the only thing we can do is really + -- cut to the preview. (TODO: Make an “abort” and/or “finish”, too?) + return {"Cut"} + end + + if live_signal_num == preview_signal_num then + -- No transitions possible. + return {} + end + + 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 + + return {"Cut"} +end + +function swap_preview_live() + local temp = live_signal_num + live_signal_num = preview_signal_num + preview_signal_num = temp +end + +function start_transition(type_, t, duration) + transition_start = t + transition_end = t + duration + transition_type = type_ + transition_src_signal = live_signal_num + transition_dst_signal = preview_signal_num + swap_preview_live() +end + +-- API ENTRY POINT +-- Called when the user clicks a transition button. +function transition_clicked(num, t) + if preview_signal_num == OVERLAY_SIGNAL_NUM then + if num == 0 then + -- Cut. + overlay_transition_start = -2.0 + overlay_transition_end = -1.0 + if overlay_enabled then + overlay_enabled = false + overlay_alpha_src = 0.0 + overlay_alpha_dst = 0.0 + else + overlay_enabled = true + overlay_alpha_src = 1.0 + overlay_alpha_dst = 1.0 + end + elseif num == 2 then + -- Fade. + overlay_transition_start = t + overlay_transition_end = t + 1.0 + if overlay_enabled then + overlay_alpha_src = 1.0 + overlay_alpha_dst = 0.0 + else + overlay_alpha_src = 0.0 + overlay_alpha_dst = 1.0 + end + overlay_enabled = true + end + return + end + + if num == 0 then + -- Cut. + if in_transition(t) then + -- Ongoing transition; finish it immediately before the cut. + finish_transitions(transition_end) + end + + swap_preview_live() + elseif num == 1 then + -- Zoom. + finish_transitions(t) + + if live_signal_num == preview_signal_num then + -- Nothing to do. + return + end + + 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") + swap_preview_live() + return + end + elseif num == 2 then + finish_transitions(t) + + -- Fade. + if (live_signal_num ~= preview_signal_num) and + (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 + start_transition(FADE_TRANSITION, t, 1.0) + else + -- Fades involving SBS are ignored (we have no chain for it). + end + end +end + +-- API ENTRY POINT +function channel_clicked(num) + preview_signal_num = num +end + +function get_fade_chain(signals, t, width, height, input_resolution) + local input0_type = get_input_type(signals, transition_src_signal) + local input0_scale = needs_scale(signals, transition_src_signal, width, height) + local input1_type = get_input_type(signals, transition_dst_signal) + local input1_scale = needs_scale(signals, transition_dst_signal, width, height) + local chain = fade_chains[input0_type][input0_scale][input1_type][input1_scale][overlay_enabled][true] + prepare = function() + if input0_type == "live" or input0_type == "livedeint" then + chain.input0.input:connect_signal(transition_src_signal) + set_neutral_color_from_signal(chain.input0.wb_effect, transition_src_signal) + end + set_scale_parameters_if_needed(chain.input0, width, height) + if input1_type == "live" or input1_type == "livedeint" then + chain.input1.input:connect_signal(transition_dst_signal) + set_neutral_color_from_signal(chain.input1.wb_effect, transition_dst_signal) + end + set_scale_parameters_if_needed(chain.input1, width, height) + local tt = calc_fade_progress(t, transition_start, transition_end) + + chain.mix_effect:set_float("strength_first", 1.0 - tt) + chain.mix_effect:set_float("strength_second", tt) + prepare_overlay_live(chain, t) + end + return chain.chain, prepare +end + +-- API ENTRY POINT +-- Called every frame. Get the chain for displaying at input , +-- 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 +-- current time in seconds. width and height are the dimensions of +-- the output, although you can ignore them if you don't need them +-- (they're useful if you want to e.g. know what to resample by). +-- +-- is basically an exposed InputState, which you can use to +-- query for information about the signals at the point of the current +-- frame. In particular, you can call get_width() and get_height() +-- for any signal number, and use that to e.g. assist in chain selection. +-- +-- You should return two objects; the chain itself, and then a +-- function (taking no parameters) that is run just before rendering. +-- The function needs to call connect_signal on any inputs, so that +-- it gets updated video data for the given frame. (You are allowed +-- to switch which input your input is getting from between frames, +-- but not calling connect_signal results in undefined behavior.) +-- If you want to change any parameters in the chain, this is also +-- the right place. +-- +-- 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, signals) + local input_resolution = {} + for signal_num=0,2 do + local res = { + 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), + is_connected = signals:get_is_connected(signal_num), + frame_rate_nom = signals:get_frame_rate_nom(signal_num), + frame_rate_den = signals:get_frame_rate_den(signal_num) + } + + if res.interlaced then + -- Convert height from frame height to field height. + -- (Needed for e.g. place_rectangle.) + res.height = res.height * 2 + + -- Show field rate instead of frame rate; really for cosmetics only + -- (and actually contrary to EBU recommendations, although in line + -- with typical user expectations). + res.frame_rate_nom = res.frame_rate_nom * 2 + end + + input_resolution[signal_num] = res + end + last_resolution = input_resolution + + if num == 0 then -- Live. + -- See if we're in a transition. + finish_transitions(t) + if transition_type == FADE_TRANSITION then + return get_fade_chain(signals, t, width, height, input_resolution) + elseif is_plain_signal(live_signal_num) then + 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][overlay_enabled][true] + prepare = function() + chain.input:connect_signal(live_signal_num) + set_scale_parameters_if_needed(chain, width, height) + set_neutral_color_from_signal(chain.wb_effect, live_signal_num) + prepare_overlay_live(chain, t) + end + return chain.chain, prepare + elseif live_signal_num == STATIC_SIGNAL_NUM then -- Static picture. + local chain = static_chains[overlay_enabled][true] + prepare = function() + prepare_overlay_live(chain, t) + end + return chain.chain, prepare + else + assert(false) + end + end + + -- We do not show overlays on the individual preview inputs. + -- The M/E preview matches what we'd put live by doing a transition, as always. + local show_overlay = false + if num == 1 then -- Preview. + if preview_signal_num == OVERLAY_SIGNAL_NUM then + num = live_signal_num + 2 + show_overlay = not overlay_enabled + + if transition_type ~= NO_TRANSITION then + num = transition_dst_signal + 2 + end + else + num = preview_signal_num + 2 + show_overlay = overlay_enabled + end + end + + -- Individual preview inputs (usually without overlay). + 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][show_overlay][false] + prepare = function() + chain.input:connect_signal(signal_num) + set_scale_parameters_if_needed(chain, width, height) + set_neutral_color(chain.wb_effect, neutral_colors[signal_num + 1]) + prepare_overlay_static(chain, t) + end + return chain.chain, prepare + end + if num == STATIC_SIGNAL_NUM + 2 then + local chain = static_chains[show_overlay][false] + prepare = function() + prepare_overlay_static(chain, t) + end + return chain.chain, prepare + end + if num == OVERLAY_SIGNAL_NUM + 2 then + prepare = function() +-- prepare_overlay(overlay_chain_lq, t) + end + return overlay_chain_lq, prepare + end +end + +-- This is broken, of course (even for positive numbers), but Lua doesn't give us access to real rounding. +function round(x) + return math.floor(x + 0.5) +end + +function prepare_overlay_live(chain, t) + if chain.overlay then + local tt = calc_fade_progress(t, overlay_transition_start, overlay_transition_end) + overlay_alpha = overlay_alpha_src + tt * (overlay_alpha_dst - overlay_alpha_src) + --print("overlay_alpha=" .. overlay_alpha .. " [" .. overlay_alpha_src .. "," .. overlay_alpha_dst .. "]@" .. tt) + if t > overlay_transition_end and overlay_alpha_dst == 0.0 then + overlay_enabled = false -- Takes effect next frame. + -- print("Turning off overlay") + end + chain.overlay.multiply_effect:set_vec4("factor", overlay_alpha, overlay_alpha, overlay_alpha, overlay_alpha) + end +end + +function prepare_overlay_static(chain) + if chain.overlay then + chain.overlay.multiply_effect:set_vec4("factor", 1.0, 1.0, 1.0, 1.0) + end +end + +function set_neutral_color(effect, color) + effect:set_vec3("neutral_color", color[1], color[2], color[3]) +end + +function set_neutral_color_from_signal(effect, signal) + if is_plain_signal(signal) then + set_neutral_color(effect, neutral_colors[signal - INPUT0_SIGNAL_NUM + 1]) + end +end + +function calc_zoom_progress(t) + if t < transition_start then + return 0.0 + elseif t > transition_end then + return 1.0 + else + local tt = (t - transition_start) / (transition_end - transition_start) + -- Smooth it a bit. + return math.sin(tt * 3.14159265358 * 0.5) + 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 + return 0.0 + elseif tt > 1.0 then + return 1.0 + end + + -- Make the fade look maybe a tad more natural, by pumping it + -- through a sigmoid function. + tt = 10.0 * tt - 5.0 + tt = 1.0 / (1.0 + math.exp(-tt)) + + return tt +end