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mirror of https://github.com/mpv-player/mpv synced 2025-01-12 09:59:44 +00:00
mpv/player/lua/stats.lua
Dudemanguy fcc67cc6c1 lua: remove a ton of unneeded parentheses
For whatever reason, some of the lua code (particularly the osc and
ytdl_hook) is full of a bunch of stuff like if (foo), if not (foo ==
nil), etc. The parenthesis aren't needed in lua and actually just look
weird since nobody actually writes lua like this. You can see most of
the other conditionals are written normally. So cleanup the style to
match when the parenthesis clearly aren't doing anything. Not directly
related, but also add some spaces on a few math operations while we're
at it.
2023-11-02 16:03:20 +00:00

1420 lines
50 KiB
Lua

-- Display some stats.
--
-- Please consult the readme for information about usage and configuration:
-- https://github.com/Argon-/mpv-stats
--
-- Please note: not every property is always available and therefore not always
-- visible.
local mp = require 'mp'
local options = require 'mp.options'
local utils = require 'mp.utils'
-- Options
local o = {
-- Default key bindings
key_page_1 = "1",
key_page_2 = "2",
key_page_3 = "3",
key_page_4 = "4",
key_page_0 = "0",
-- For pages which support scrolling
key_scroll_up = "UP",
key_scroll_down = "DOWN",
scroll_lines = 1,
duration = 4,
redraw_delay = 1, -- acts as duration in the toggling case
ass_formatting = true,
persistent_overlay = false, -- whether the stats can be overwritten by other output
print_perfdata_passes = false, -- when true, print the full information about all passes
filter_params_max_length = 100, -- a filter list longer than this many characters will be shown one filter per line instead
show_frame_info = false, -- whether to show the current frame info
debug = false,
-- Graph options and style
plot_perfdata = true,
plot_vsync_ratio = true,
plot_vsync_jitter = true,
plot_tonemapping_lut = false,
skip_frames = 5,
global_max = true,
flush_graph_data = true, -- clear data buffers when toggling
plot_bg_border_color = "0000FF",
plot_bg_color = "262626",
plot_color = "FFFFFF",
-- Text style
font = "sans-serif",
font_mono = "monospace", -- monospaced digits are sufficient
font_size = 8,
font_color = "FFFFFF",
border_size = 0.8,
border_color = "262626",
shadow_x_offset = 0.0,
shadow_y_offset = 0.0,
shadow_color = "000000",
alpha = "11",
-- Custom header for ASS tags to style the text output.
-- Specifying this will ignore the text style values above and just
-- use this string instead.
custom_header = "",
-- Text formatting
-- With ASS
ass_nl = "\\N",
ass_indent = "\\h\\h\\h\\h\\h",
ass_prefix_sep = "\\h\\h",
ass_b1 = "{\\b1}",
ass_b0 = "{\\b0}",
ass_it1 = "{\\i1}",
ass_it0 = "{\\i0}",
-- Without ASS
no_ass_nl = "\n",
no_ass_indent = "\t",
no_ass_prefix_sep = " ",
no_ass_b1 = "\027[1m",
no_ass_b0 = "\027[0m",
no_ass_it1 = "\027[3m",
no_ass_it0 = "\027[0m",
bindlist = "no", -- print page 4 to the terminal on startup and quit mpv
}
options.read_options(o)
local format = string.format
local max = math.max
local min = math.min
-- Function used to record performance data
local recorder = nil
-- Timer used for redrawing (toggling) and clearing the screen (oneshot)
local display_timer = nil
-- Timer used to update cache stats.
local cache_recorder_timer = nil
-- Current page and <page key>:<page function> mappings
local curr_page = o.key_page_1
local pages = {}
local scroll_bound = false
local tm_viz_prev = nil
-- Save these sequences locally as we'll need them a lot
local ass_start = mp.get_property_osd("osd-ass-cc/0")
local ass_stop = mp.get_property_osd("osd-ass-cc/1")
-- Ring buffers for the values used to construct a graph.
-- .pos denotes the current position, .len the buffer length
-- .max is the max value in the corresponding buffer
local vsratio_buf, vsjitter_buf
local function init_buffers()
vsratio_buf = {0, pos = 1, len = 50, max = 0}
vsjitter_buf = {0, pos = 1, len = 50, max = 0}
end
local cache_ahead_buf, cache_speed_buf
local perf_buffers = {}
-- Save all properties known to this version of mpv
local property_list = {}
for p in string.gmatch(mp.get_property("property-list"), "([^,]+)") do property_list[p] = true end
local function graph_add_value(graph, value)
graph.pos = (graph.pos % graph.len) + 1
graph[graph.pos] = value
graph.max = max(graph.max, value)
end
-- "\\<U+2060>" in UTF-8 (U+2060 is WORD-JOINER)
local ESC_BACKSLASH = "\\" .. string.char(0xE2, 0x81, 0xA0)
local function no_ASS(t)
if not o.use_ass then
return t
elseif not o.persistent_overlay then
-- mp.osd_message supports ass-escape using osd-ass-cc/{0|1}
return ass_stop .. t .. ass_start
else
-- mp.set_osd_ass doesn't support ass-escape. roll our own.
-- similar to mpv's sub/osd_libass.c:mangle_ass(...), excluding
-- space after newlines because no_ASS is not used with multi-line.
-- space at the beginning is replaced with "\\h" because it matters
-- at the beginning of a line, and we can't know where our output
-- ends up. no issue if it ends up at the middle of a line.
return tostring(t)
:gsub("\\", ESC_BACKSLASH)
:gsub("{", "\\{")
:gsub("^ ", "\\h")
end
end
local function b(t)
return o.b1 .. t .. o.b0
end
local function it(t)
return o.it1 .. t .. o.it0
end
local function text_style()
if not o.use_ass then
return ""
end
if o.custom_header and o.custom_header ~= "" then
return o.custom_header
else
return format("{\\r}{\\an7}{\\fs%d}{\\fn%s}{\\bord%f}{\\3c&H%s&}" ..
"{\\1c&H%s&}{\\alpha&H%s&}{\\xshad%f}{\\yshad%f}{\\4c&H%s&}",
o.font_size, o.font, o.border_size,
o.border_color, o.font_color, o.alpha, o.shadow_x_offset,
o.shadow_y_offset, o.shadow_color)
end
end
local function has_vo_window()
return mp.get_property("vo-configured") == "yes"
end
-- Generate a graph from the given values.
-- Returns an ASS formatted vector drawing as string.
--
-- values: Array/table of numbers representing the data. Used like a ring buffer
-- it will get iterated backwards `len` times starting at position `i`.
-- i : Index of the latest data value in `values`.
-- len : The length/amount of numbers in `values`.
-- v_max : The maximum number in `values`. It is used to scale all data
-- values to a range of 0 to `v_max`.
-- v_avg : The average number in `values`. It is used to try and center graphs
-- if possible. May be left as nil
-- scale : A value that will be multiplied with all data values.
-- x_tics: Horizontal width multiplier for the steps
local function generate_graph(values, i, len, v_max, v_avg, scale, x_tics)
-- Check if at least one value exists
if not values[i] then
return ""
end
local x_max = (len - 1) * x_tics
local y_offset = o.border_size
local y_max = o.font_size * 0.66
local x = 0
if v_max > 0 then
-- try and center the graph if possible, but avoid going above `scale`
if v_avg and v_avg > 0 then
scale = min(scale, v_max / (2 * v_avg))
end
scale = scale * y_max / v_max
end -- else if v_max==0 then all values are 0 and scale doesn't matter
local s = {format("m 0 0 n %f %f l ", x, y_max - scale * values[i])}
i = ((i - 2) % len) + 1
for p = 1, len - 1 do
if values[i] then
x = x - x_tics
s[#s+1] = format("%f %f ", x, y_max - scale * values[i])
end
i = ((i - 2) % len) + 1
end
s[#s+1] = format("%f %f %f %f", x, y_max, 0, y_max)
local bg_box = format("{\\bord0.5}{\\3c&H%s&}{\\1c&H%s&}m 0 %f l %f %f %f 0 0 0",
o.plot_bg_border_color, o.plot_bg_color, y_max, x_max, y_max, x_max)
return format("%s{\\r}{\\pbo%f}{\\shad0}{\\alpha&H00}{\\p1}%s{\\p0}{\\bord0}{\\1c&H%s}{\\p1}%s{\\p0}%s",
o.prefix_sep, y_offset, bg_box, o.plot_color, table.concat(s), text_style())
end
local function append(s, str, attr)
if not str then
return false
end
attr.prefix_sep = attr.prefix_sep or o.prefix_sep
attr.indent = attr.indent or o.indent
attr.nl = attr.nl or o.nl
attr.suffix = attr.suffix or ""
attr.prefix = attr.prefix or ""
attr.no_prefix_markup = attr.no_prefix_markup or false
attr.prefix = attr.no_prefix_markup and attr.prefix or b(attr.prefix)
s[#s+1] = format("%s%s%s%s%s%s", attr.nl, attr.indent,
attr.prefix, attr.prefix_sep, no_ASS(str), attr.suffix)
return true
end
-- Format and append a property.
-- A property whose value is either `nil` or empty (hereafter called "invalid")
-- is skipped and not appended.
-- Returns `false` in case nothing was appended, otherwise `true`.
--
-- s : Table containing strings.
-- prop : The property to query and format (based on its OSD representation).
-- attr : Optional table to overwrite certain (formatting) attributes for
-- this property.
-- exclude: Optional table containing keys which are considered invalid values
-- for this property. Specifying this will replace empty string as
-- default invalid value (nil is always invalid).
local function append_property(s, prop, attr, excluded)
excluded = excluded or {[""] = true}
local ret = mp.get_property_osd(prop)
if not ret or excluded[ret] then
if o.debug then
print("No value for property: " .. prop)
end
return false
end
return append(s, ret, attr)
end
local function sorted_keys(t, comp_fn)
local keys = {}
for k,_ in pairs(t) do
keys[#keys+1] = k
end
table.sort(keys, comp_fn)
return keys
end
local function append_perfdata(s, dedicated_page, print_passes)
local vo_p = mp.get_property_native("vo-passes")
if not vo_p then
return
end
local ds = mp.get_property_bool("display-sync-active", false)
local target_fps = ds and mp.get_property_number("display-fps", 0)
or mp.get_property_number("container-fps", 0)
if target_fps > 0 then target_fps = 1 / target_fps * 1e9 end
-- Sums of all last/avg/peak values
local last_s, avg_s, peak_s = {}, {}, {}
for frame, data in pairs(vo_p) do
last_s[frame], avg_s[frame], peak_s[frame] = 0, 0, 0
for _, pass in ipairs(data) do
last_s[frame] = last_s[frame] + pass["last"]
avg_s[frame] = avg_s[frame] + pass["avg"]
peak_s[frame] = peak_s[frame] + pass["peak"]
end
end
-- Pretty print measured time
local function pp(i)
-- rescale to microseconds for a saner display
return format("%5d", i / 1000)
end
-- Format n/m with a font weight based on the ratio
local function p(n, m)
local i = 0
if m > 0 then
i = tonumber(n) / m
end
-- Calculate font weight. 100 is minimum, 400 is normal, 700 bold, 900 is max
local w = (700 * math.sqrt(i)) + 200
return format("{\\b%d}%2d%%{\\b0}", w, i * 100)
end
-- ensure that the fixed title is one element and every scrollable line is
-- also one single element.
s[#s+1] = format("%s%s%s%s{\\fs%s}%s%s{\\fs%s}",
dedicated_page and "" or o.nl, dedicated_page and "" or o.indent,
b("Frame Timings:"), o.prefix_sep, o.font_size * 0.66,
"(last/average/peak μs)",
dedicated_page and " (hint: scroll with ↑↓)" or "", o.font_size)
for _,frame in ipairs(sorted_keys(vo_p)) do -- ensure fixed display order
local data = vo_p[frame]
local f = "%s%s%s{\\fn%s}%s / %s / %s %s%s{\\fn%s}%s%s%s"
if print_passes then
s[#s+1] = format("%s%s%s:", o.nl, o.indent,
b(frame:gsub("^%l", string.upper)))
for _, pass in ipairs(data) do
s[#s+1] = format(f, o.nl, o.indent, o.indent,
o.font_mono, pp(pass["last"]),
pp(pass["avg"]), pp(pass["peak"]),
o.prefix_sep .. "\\h\\h", p(pass["last"], last_s[frame]),
o.font, o.prefix_sep, o.prefix_sep, pass["desc"])
if o.plot_perfdata and o.use_ass then
-- use the same line that was already started for this iteration
s[#s] = s[#s] ..
generate_graph(pass["samples"], pass["count"],
pass["count"], pass["peak"],
pass["avg"], 0.9, 0.25)
end
end
-- Print sum of timing values as "Total"
s[#s+1] = format(f, o.nl, o.indent, o.indent,
o.font_mono, pp(last_s[frame]),
pp(avg_s[frame]), pp(peak_s[frame]),
o.prefix_sep, b("Total"), o.font, "", "", "")
else
-- for the simplified view, we just print the sum of each pass
s[#s+1] = format(f, o.nl, o.indent, o.indent, o.font_mono,
pp(last_s[frame]), pp(avg_s[frame]), pp(peak_s[frame]),
"", "", o.font, o.prefix_sep, o.prefix_sep,
frame:gsub("^%l", string.upper))
end
end
end
local function ellipsis(s, maxlen)
if not maxlen or s:len() <= maxlen then return s end
return s:sub(1, maxlen - 3) .. "..."
end
-- command prefix tokens to strip - includes generic property commands
local cmd_prefixes = {
osd_auto=1, no_osd=1, osd_bar=1, osd_msg=1, osd_msg_bar=1, raw=1, sync=1,
async=1, expand_properties=1, repeatable=1, set=1, add=1, multiply=1,
toggle=1, cycle=1, cycle_values=1, ["!reverse"]=1, change_list=1,
}
-- commands/writable-properties prefix sub-words (followed by -) to strip
local name_prefixes = {
define=1, delete=1, enable=1, disable=1, dump=1, write=1, drop=1, revert=1,
ab=1, hr=1, secondary=1, current=1,
}
-- extract a command "subject" from a command string, by removing all
-- generic prefix tokens and then returning the first interesting sub-word
-- of the next token. For target-script name we also check another token.
-- The tokenizer works fine for things we care about - valid mpv commands,
-- properties and script names, possibly quoted, white-space[s]-separated.
-- It's decent in practice, and worst case is "incorrect" subject.
local function cmd_subject(cmd)
cmd = cmd:gsub(";.*", ""):gsub("%-", "_") -- only first cmd, s/-/_/
local TOKEN = '^%s*["\']?([%w_!]*)' -- captures+ends before (maybe) final "
local tok, sname, subw
repeat tok, cmd = cmd:match(TOKEN .. '["\']?(.*)')
until not cmd_prefixes[tok]
-- tok is the 1st non-generic command/property name token, cmd is the rest
sname = tok == "script_message_to" and cmd:match(TOKEN)
or tok == "script_binding" and cmd:match(TOKEN .. "/")
if sname and sname ~= "" then
return "script: " .. sname
end
-- return the first sub-word of tok which is not a useless prefix
repeat subw, tok = tok:match("([^_]*)_?(.*)")
until tok == "" or not name_prefixes[subw]
return subw:len() > 1 and subw or "[unknown]"
end
-- key names are valid UTF-8, ascii7 except maybe the last/only codepoint.
-- we count codepoints and ignore wcwidth. no need for grapheme clusters.
-- our error for alignment is at most one cell (if last CP is double-width).
-- (if k was valid but arbitrary: we'd count all bytes <0x80 or >=0xc0)
local function keyname_cells(k)
local klen = k:len()
if klen > 1 and k:byte(klen) >= 0x80 then -- last/only CP is not ascii7
repeat klen = klen-1
until klen == 1 or k:byte(klen) >= 0xc0 -- last CP begins at klen
end
return klen
end
local function get_kbinfo_lines(width)
-- active keys: only highest priority of each key, and not our (stats) keys
local bindings = mp.get_property_native("input-bindings", {})
local active = {} -- map: key-name -> bind-info
for _, bind in pairs(bindings) do
if bind.priority >= 0 and (
not active[bind.key] or
(active[bind.key].is_weak and not bind.is_weak) or
(bind.is_weak == active[bind.key].is_weak and
bind.priority > active[bind.key].priority)
) and not bind.cmd:find("script-binding stats/__forced_", 1, true)
then
active[bind.key] = bind
end
end
-- make an array, find max key len, add sort keys (.subject/.mods[_count])
local ordered = {}
local kspaces = "" -- as many spaces as the longest key name
for _, bind in pairs(active) do
bind.subject = cmd_subject(bind.cmd)
if bind.subject ~= "ignore" then
ordered[#ordered+1] = bind
_,_, bind.mods = bind.key:find("(.*)%+.")
_, bind.mods_count = bind.key:gsub("%+.", "")
if bind.key:len() > kspaces:len() then
kspaces = string.rep(" ", bind.key:len())
end
end
end
local function align_right(key)
return kspaces:sub(keyname_cells(key)) .. key
end
-- sort by: subject, mod(ifier)s count, mods, key-len, lowercase-key, key
table.sort(ordered, function(a, b)
if a.subject ~= b.subject then
return a.subject < b.subject
elseif a.mods_count ~= b.mods_count then
return a.mods_count < b.mods_count
elseif a.mods ~= b.mods then
return a.mods < b.mods
elseif a.key:len() ~= b.key:len() then
return a.key:len() < b.key:len()
elseif a.key:lower() ~= b.key:lower() then
return a.key:lower() < b.key:lower()
else
return a.key > b.key -- only case differs, lowercase first
end
end)
-- key/subject pre/post formatting for terminal/ass.
-- key/subject alignment uses spaces (with mono font if ass)
-- word-wrapping is disabled for ass, or cut at 79 for the terminal
local LTR = string.char(0xE2, 0x80, 0x8E) -- U+200E Left To Right mark
local term = not o.use_ass
local kpre = term and "" or format("{\\q2\\fn%s}%s", o.font_mono, LTR)
local kpost = term and " " or format(" {\\fn%s}", o.font)
local spre = term and kspaces .. " "
or format("{\\q2\\fn%s}%s {\\fn%s}{\\fs%d\\u1}",
o.font_mono, kspaces, o.font, 1.3*o.font_size)
local spost = term and "" or format("{\\u0\\fs%d}", o.font_size)
local _, itabs = o.indent:gsub("\t", "")
local cutoff = term and (width or 79) - o.indent:len() - itabs * 7 - spre:len()
-- create the display lines
local info_lines = {}
local subject = nil
for _, bind in ipairs(ordered) do
if bind.subject ~= subject then -- new subject (title)
subject = bind.subject
append(info_lines, "", {})
append(info_lines, "", { prefix = spre .. subject .. spost })
end
if bind.comment then
bind.cmd = bind.cmd .. " # " .. bind.comment
end
append(info_lines, ellipsis(bind.cmd, cutoff),
{ prefix = kpre .. no_ASS(align_right(bind.key)) .. kpost })
end
return info_lines
end
local function append_general_perfdata(s, offset)
local perf_info = mp.get_property_native("perf-info") or {}
local count = 0
for _, data in ipairs(perf_info) do
count = count + 1
end
offset = max(1, min((offset or 1), count))
local i = 0
for _, data in ipairs(perf_info) do
i = i + 1
if i >= offset then
append(s, data.text or data.value, {prefix="["..tostring(i).."] "..data.name..":"})
if o.plot_perfdata and o.use_ass and data.value then
buf = perf_buffers[data.name]
if not buf then
buf = {0, pos = 1, len = 50, max = 0}
perf_buffers[data.name] = buf
end
graph_add_value(buf, data.value)
s[#s+1] = generate_graph(buf, buf.pos, buf.len, buf.max, nil, 0.8, 1)
end
end
end
return offset
end
local function append_display_sync(s)
if not mp.get_property_bool("display-sync-active", false) then
return
end
local vspeed = append_property(s, "video-speed-correction", {prefix="DS:"})
if vspeed then
append_property(s, "audio-speed-correction",
{prefix="/", nl="", indent=" ", prefix_sep=" ", no_prefix_markup=true})
else
append_property(s, "audio-speed-correction",
{prefix="DS:" .. o.prefix_sep .. " - / ", prefix_sep=""})
end
append_property(s, "mistimed-frame-count", {prefix="Mistimed:", nl="",
indent=o.prefix_sep .. o.prefix_sep})
append_property(s, "vo-delayed-frame-count", {prefix="Delayed:", nl="",
indent=o.prefix_sep .. o.prefix_sep})
-- As we need to plot some graphs we print jitter and ratio on their own lines
if not display_timer.oneshot and (o.plot_vsync_ratio or o.plot_vsync_jitter) and o.use_ass then
local ratio_graph = ""
local jitter_graph = ""
if o.plot_vsync_ratio then
ratio_graph = generate_graph(vsratio_buf, vsratio_buf.pos, vsratio_buf.len, vsratio_buf.max, nil, 0.8, 1)
end
if o.plot_vsync_jitter then
jitter_graph = generate_graph(vsjitter_buf, vsjitter_buf.pos, vsjitter_buf.len, vsjitter_buf.max, nil, 0.8, 1)
end
append_property(s, "vsync-ratio", {prefix="VSync Ratio:", suffix=o.prefix_sep .. ratio_graph})
append_property(s, "vsync-jitter", {prefix="VSync Jitter:", suffix=o.prefix_sep .. jitter_graph})
else
-- Since no graph is needed we can print ratio/jitter on the same line and save some space
local vr = append_property(s, "vsync-ratio", {prefix="VSync Ratio:"})
append_property(s, "vsync-jitter", {prefix="VSync Jitter:",
nl=vr and "" or o.nl,
indent=vr and o.prefix_sep .. o.prefix_sep})
end
end
local function append_filters(s, prop, prefix)
local length = 0
local filters = {}
for _,f in ipairs(mp.get_property_native(prop, {})) do
local n = f.name
if f.enabled ~= nil and not f.enabled then
n = n .. " (disabled)"
end
if f.label ~= nil then
n = "@" .. f.label .. ": " .. n
end
local p = {}
for _,key in ipairs(sorted_keys(f.params)) do
p[#p+1] = key .. "=" .. f.params[key]
end
if #p > 0 then
p = " [" .. table.concat(p, " ") .. "]"
else
p = ""
end
length = length + n:len() + p:len()
filters[#filters+1] = no_ASS(n) .. it(no_ASS(p))
end
if #filters > 0 then
local ret
if length < o.filter_params_max_length then
ret = table.concat(filters, ", ")
else
local sep = o.nl .. o.indent .. o.indent
ret = sep .. table.concat(filters, sep)
end
s[#s+1] = o.nl .. o.indent .. b(prefix) .. o.prefix_sep .. ret
end
end
local function add_header(s)
s[#s+1] = text_style()
end
local function add_file(s)
append(s, "", {prefix="File:", nl="", indent=""})
append_property(s, "filename", {prefix_sep="", nl="", indent=""})
if not (mp.get_property_osd("filename") == mp.get_property_osd("media-title")) then
append_property(s, "media-title", {prefix="Title:"})
end
local editions = mp.get_property_number("editions")
local edition = mp.get_property_number("current-edition")
local ed_cond = (edition and editions > 1)
if ed_cond then
append_property(s, "edition-list/" .. tostring(edition) .. "/title",
{prefix="Edition:"})
append_property(s, "edition-list/count",
{prefix="(" .. tostring(edition + 1) .. "/", suffix=")", nl="",
indent=" ", prefix_sep=" ", no_prefix_markup=true})
end
local ch_index = mp.get_property_number("chapter")
if ch_index and ch_index >= 0 then
append_property(s, "chapter-list/" .. tostring(ch_index) .. "/title", {prefix="Chapter:",
nl=ed_cond and "" or o.nl})
append_property(s, "chapter-list/count",
{prefix="(" .. tostring(ch_index + 1) .. " /", suffix=")", nl="",
indent=" ", prefix_sep=" ", no_prefix_markup=true})
end
local fs = append_property(s, "file-size", {prefix="Size:"})
append_property(s, "file-format", {prefix="Format/Protocol:",
nl=fs and "" or o.nl,
indent=fs and o.prefix_sep .. o.prefix_sep})
local demuxer_cache = mp.get_property_native("demuxer-cache-state", {})
if demuxer_cache["fw-bytes"] then
demuxer_cache = demuxer_cache["fw-bytes"] -- returns bytes
else
demuxer_cache = 0
end
local demuxer_secs = mp.get_property_number("demuxer-cache-duration", 0)
if demuxer_cache + demuxer_secs > 0 then
append(s, utils.format_bytes_humanized(demuxer_cache), {prefix="Total Cache:"})
append(s, format("%.1f", demuxer_secs), {prefix="(", suffix=" sec)", nl="",
no_prefix_markup=true, prefix_sep="", indent=o.prefix_sep})
end
end
local function crop_noop(w, h, r)
return r["crop-x"] == 0 and r["crop-y"] == 0 and
r["crop-w"] == w and r["crop-h"] == h
end
local function crop_equal(r, ro)
return r["crop-x"] == ro["crop-x"] and r["crop-y"] == ro["crop-y"] and
r["crop-w"] == ro["crop-w"] and r["crop-h"] == ro["crop-h"]
end
local function append_resolution(s, r, prefix, w_prop, h_prop, video_res)
if not r then
return
end
w_prop = w_prop or "w"
h_prop = h_prop or "h"
if append(s, r[w_prop], {prefix=prefix}) then
append(s, r[h_prop], {prefix="x", nl="", indent=" ", prefix_sep=" ",
no_prefix_markup=true})
if r["aspect"] ~= nil then
append(s, format("%.2f:1", r["aspect"]), {prefix="", nl="", indent="",
no_prefix_markup=true})
append(s, r["aspect-name"], {prefix="(", suffix=")", nl="", indent=" ",
prefix_sep="", no_prefix_markup=true})
end
if r["s"] then
append(s, format("%.2f", r["s"]), {prefix="(", suffix="x)", nl="",
indent=o.prefix_sep, prefix_sep="",
no_prefix_markup=true})
end
-- We can skip crop if it is the same as video decoded resolution
if r["crop-w"] and (not video_res or
not crop_noop(r[w_prop], r[h_prop], r)) then
append(s, format("[x: %d, y: %d, w: %d, h: %d]",
r["crop-x"], r["crop-y"], r["crop-w"], r["crop-h"]),
{prefix="", nl="", indent="", no_prefix_markup=true})
end
end
end
local function pq_eotf(x)
if not x then
return x;
end
local PQ_M1 = 2610.0 / 4096 * 1.0 / 4
local PQ_M2 = 2523.0 / 4096 * 128
local PQ_C1 = 3424.0 / 4096
local PQ_C2 = 2413.0 / 4096 * 32
local PQ_C3 = 2392.0 / 4096 * 32
x = x ^ (1.0 / PQ_M2)
x = max(x - PQ_C1, 0.0) / (PQ_C2 - PQ_C3 * x)
x = x ^ (1.0 / PQ_M1)
x = x * 10000.0
return x
end
local function append_hdr(s, hdr, video_out)
if not hdr then
return
end
local function should_show(val)
return val and val ~= 203 and val > 0
end
-- If we are printing video out parameters it is just display, not mastering
local display_prefix = video_out and "Display:" or "Mastering display:"
local indent = ""
if should_show(hdr["max-cll"]) or should_show(hdr["max-luma"]) then
append(s, "", {prefix="HDR10:"})
if hdr["min-luma"] and should_show(hdr["max-luma"]) then
-- libplacebo uses close to zero values as "defined zero"
hdr["min-luma"] = hdr["min-luma"] <= 1e-6 and 0 or hdr["min-luma"]
append(s, format("%.2g / %.0f", hdr["min-luma"], hdr["max-luma"]),
{prefix=display_prefix, suffix=" cd/m²", nl="", indent=indent})
indent = o.prefix_sep .. o.prefix_sep
end
if should_show(hdr["max-cll"]) then
append(s, hdr["max-cll"], {prefix="MaxCLL:", suffix=" cd/m²", nl="",
indent=indent})
indent = o.prefix_sep .. o.prefix_sep
end
if hdr["max-fall"] and hdr["max-fall"] > 0 then
append(s, hdr["max-fall"], {prefix="MaxFALL:", suffix=" cd/m²", nl="",
indent=indent})
end
end
indent = o.prefix_sep .. o.prefix_sep
if hdr["scene-max-r"] or hdr["scene-max-g"] or
hdr["scene-max-b"] or hdr["scene-avg"] then
append(s, "", {prefix="HDR10+:"})
append(s, format("%.1f / %.1f / %.1f", hdr["scene-max-r"] or 0,
hdr["scene-max-g"] or 0, hdr["scene-max-b"] or 0),
{prefix="MaxRGB:", suffix=" cd/m²", nl="", indent=""})
append(s, format("%.1f", hdr["scene-avg"] or 0),
{prefix="Avg:", suffix=" cd/m²", nl="", indent=indent})
end
if hdr["max-pq-y"] and hdr["avg-pq-y"] then
append(s, "", {prefix="PQ(Y):"})
append(s, format("%.2f cd/m² (%.2f%% PQ)", pq_eotf(hdr["max-pq-y"]),
hdr["max-pq-y"] * 100), {prefix="Max:", nl="",
indent=""})
append(s, format("%.2f cd/m² (%.2f%% PQ)", pq_eotf(hdr["avg-pq-y"]),
hdr["avg-pq-y"] * 100), {prefix="Avg:", nl="",
indent=indent})
end
end
local function append_img_params(s, r, ro)
if not r then
return
end
append_resolution(s, r, "Resolution:", "w", "h", true)
if ro and (r["w"] ~= ro["dw"] or r["h"] ~= ro["dh"]) then
if ro["crop-w"] and (crop_noop(r["w"], r["h"], ro) or crop_equal(r, ro)) then
ro["crop-w"] = nil
end
append_resolution(s, ro, "Output Resolution:", "dw", "dh")
end
local indent = o.prefix_sep .. o.prefix_sep
local pixel_format = r["hw-pixelformat"] or r["pixelformat"]
append(s, pixel_format, {prefix="Format:"})
append(s, r["colorlevels"], {prefix="Levels:", nl="", indent=indent})
if r["chroma-location"] and r["chroma-location"] ~= "unknown" then
append(s, r["chroma-location"], {prefix="Chroma Loc:", nl="", indent=indent})
end
-- Group these together to save vertical space
append(s, r["colormatrix"], {prefix="Colormatrix:"})
append(s, r["primaries"], {prefix="Primaries:", nl="", indent=indent})
append(s, r["gamma"], {prefix="Transfer:", nl="", indent=indent})
end
local function append_fps(s, prop, eprop)
local fps = mp.get_property_osd(prop)
local efps = mp.get_property_osd(eprop)
local single = fps ~= "" and efps ~= "" and fps == efps
local unit = prop == "display-fps" and " Hz" or " fps"
local suffix = single and "" or " (specified)"
local esuffix = single and "" or " (estimated)"
local prefix = prop == "display-fps" and "Refresh Rate:" or "Frame rate:"
local nl = o.nl
local indent = o.indent
if fps ~= "" and append(s, fps, {prefix=prefix, suffix=unit .. suffix}) then
prefix = ""
nl = ""
indent = ""
end
if not single and efps ~= "" then
append(s, efps,
{prefix=prefix, suffix=unit .. esuffix, nl=nl, indent=indent})
end
end
local function add_video_out(s)
local vo = mp.get_property_native("current-vo")
if not vo then
return
end
append(s, "", {prefix=o.nl .. o.nl .. "Display:", nl="", indent=""})
append(s, vo, {prefix_sep="", nl="", indent=""})
append_property(s, "display-names", {prefix_sep="", prefix="(", suffix=")",
no_prefix_markup=true, nl="", indent=" "})
append_property(s, "avsync", {prefix="A-V:"})
append_fps(s, "display-fps", "estimated-display-fps")
if append_property(s, "decoder-frame-drop-count",
{prefix="Dropped Frames:", suffix=" (decoder)"}) then
append_property(s, "frame-drop-count", {suffix=" (output)", nl="", indent=""})
end
append_display_sync(s)
append_perfdata(s, false, o.print_perfdata_passes)
if mp.get_property_native("deinterlace") then
append_property(s, "deinterlace", {prefix="Deinterlacing:"})
end
local scale = nil
if not mp.get_property_native("fullscreen") then
scale = mp.get_property_native("current-window-scale")
end
local r = mp.get_property_native("video-target-params")
if not r then
local osd_dims = mp.get_property_native("osd-dimensions")
local scaled_width = osd_dims["w"] - osd_dims["ml"] - osd_dims["mr"]
local scaled_height = osd_dims["h"] - osd_dims["mt"] - osd_dims["mb"]
append_resolution(s, {w=scaled_width, h=scaled_height, s=scale},
"Resolution:")
return
end
-- Add window scale
r["s"] = scale
append_img_params(s, r)
append_hdr(s, r, true)
end
local function add_video(s)
local r = mp.get_property_native("video-params")
local ro = mp.get_property_native("video-out-params")
-- in case of e.g. lavfi-complex there can be no input video, only output
if not r then
r = ro
end
if not r then
return
end
local osd_dims = mp.get_property_native("osd-dimensions")
local scaled_width = osd_dims["w"] - osd_dims["ml"] - osd_dims["mr"]
local scaled_height = osd_dims["h"] - osd_dims["mt"] - osd_dims["mb"]
append(s, "", {prefix=o.nl .. o.nl .. "Video:", nl="", indent=""})
if append_property(s, "video-codec", {prefix_sep="", nl="", indent=""}) then
append_property(s, "hwdec-current", {prefix="HW:", nl="",
indent=o.prefix_sep .. o.prefix_sep,
no_prefix_markup=false, suffix=""}, {no=true, [""]=true})
end
local has_prefix = false
if o.show_frame_info then
if append_property(s, "estimated-frame-number", {prefix="Frame:"}) then
append_property(s, "estimated-frame-count", {indent=" / ", nl="",
prefix_sep=""})
has_prefix = true
end
local frame_info = mp.get_property_native("video-frame-info")
if frame_info and frame_info["picture-type"] then
local attrs = has_prefix and {prefix="(", suffix=")", indent=" ", nl="",
prefix_sep="", no_prefix_markup=true}
or {prefix="Picture Type:"}
append(s, frame_info["picture-type"], attrs)
has_prefix = true
end
if frame_info and frame_info["interlaced"] then
local attrs = has_prefix and {indent=" ", nl="", prefix_sep=""}
or {prefix="Picture Type:"}
append(s, "Interlaced", attrs)
end
end
if mp.get_property_native("current-tracks/video/image") == false then
append_fps(s, "container-fps", "estimated-vf-fps")
end
append_img_params(s, r, ro)
local hdr = mp.get_property_native("hdr-metadata")
if not hdr then
local hdrpeak = r["sig-peak"] or 0
hdr = {["max-cll"]=math.floor(hdrpeak * 203)}
end
append_hdr(s, hdr)
append_property(s, "packet-video-bitrate", {prefix="Bitrate:", suffix=" kbps"})
append_filters(s, "vf", "Filters:")
end
local function add_audio(s)
local r = mp.get_property_native("audio-params")
-- in case of e.g. lavfi-complex there can be no input audio, only output
if not r then
r = mp.get_property_native("audio-out-params")
end
if not r then
return
end
append(s, "", {prefix=o.nl .. o.nl .. "Audio:", nl="", indent=""})
append_property(s, "audio-codec", {prefix_sep="", nl="", indent=""})
local cc = append(s, r["channel-count"], {prefix="Channels:"})
append(s, r["format"], {prefix="Format:", nl=cc and "" or o.nl,
indent=cc and o.prefix_sep .. o.prefix_sep})
append(s, r["samplerate"], {prefix="Sample Rate:", suffix=" Hz"})
append_property(s, "packet-audio-bitrate", {prefix="Bitrate:", suffix=" kbps"})
append_filters(s, "af", "Filters:")
end
-- Determine whether ASS formatting shall/can be used and set formatting sequences
local function eval_ass_formatting()
o.use_ass = o.ass_formatting and has_vo_window()
if o.use_ass then
o.nl = o.ass_nl
o.indent = o.ass_indent
o.prefix_sep = o.ass_prefix_sep
o.b1 = o.ass_b1
o.b0 = o.ass_b0
o.it1 = o.ass_it1
o.it0 = o.ass_it0
else
o.nl = o.no_ass_nl
o.indent = o.no_ass_indent
o.prefix_sep = o.no_ass_prefix_sep
o.b1 = o.no_ass_b1
o.b0 = o.no_ass_b0
o.it1 = o.no_ass_it1
o.it0 = o.no_ass_it0
end
end
-- Returns an ASS string with "normal" stats
local function default_stats()
local stats = {}
eval_ass_formatting()
add_header(stats)
add_file(stats)
add_video_out(stats)
add_video(stats)
add_audio(stats)
return table.concat(stats)
end
local function scroll_vo_stats(stats, fixed_items, offset)
local ret = {}
local count = #stats - fixed_items
offset = max(1, min((offset or 1), count))
for i, line in pairs(stats) do
if i <= fixed_items or i >= fixed_items + offset then
ret[#ret+1] = stats[i]
end
end
return ret, offset
end
-- Returns an ASS string with extended VO stats
local function vo_stats()
local stats = {}
eval_ass_formatting()
add_header(stats)
-- first line (title) added next is considered fixed
local fixed_items = #stats + 1
append_perfdata(stats, true, true)
local page = pages[o.key_page_2]
stats, page.offset = scroll_vo_stats(stats, fixed_items, page.offset)
return table.concat(stats)
end
local kbinfo_lines = nil
local function keybinding_info(after_scroll)
local header = {}
local page = pages[o.key_page_4]
eval_ass_formatting()
add_header(header)
append(header, "", {prefix=format("%s: {\\fs%s}%s{\\fs%s}", page.desc,
o.font_size * 0.66, "(hint: scroll with ↑↓)", o.font_size), nl="",
indent=""})
if not kbinfo_lines or not after_scroll then
kbinfo_lines = get_kbinfo_lines()
end
-- up to 20 lines for the terminal - so that mpv can also print
-- the status line without scrolling, and up to 40 lines for libass
-- because it can put a big performance toll on libass to process
-- many lines which end up outside (below) the screen.
local term = not o.use_ass
local nlines = #kbinfo_lines
page.offset = max(1, min((page.offset or 1), term and nlines - 20 or nlines))
local maxline = min(nlines, page.offset + (term and 20 or 40))
return table.concat(header) ..
table.concat(kbinfo_lines, "", page.offset, maxline)
end
local function perf_stats()
local stats = {}
eval_ass_formatting()
add_header(stats)
local page = pages[o.key_page_0]
append(stats, "", {prefix=page.desc .. ":", nl="", indent=""})
page.offset = append_general_perfdata(stats, page.offset)
return table.concat(stats)
end
local function opt_time(t)
if type(t) == type(1.1) then
return mp.format_time(t)
end
return "?"
end
-- Returns an ASS string with stats about the demuxer cache etc.
local function cache_stats()
local stats = {}
eval_ass_formatting()
add_header(stats)
append(stats, "", {prefix="Cache info:", nl="", indent=""})
local info = mp.get_property_native("demuxer-cache-state")
if info == nil then
append(stats, "Unavailable.", {})
return table.concat(stats)
end
local a = info["reader-pts"]
local b = info["cache-end"]
append(stats, opt_time(a) .. " - " .. opt_time(b), {prefix = "Packet queue:"})
local r = nil
if a ~= nil and b ~= nil then
r = b - a
end
local r_graph = nil
if not display_timer.oneshot and o.use_ass then
r_graph = generate_graph(cache_ahead_buf, cache_ahead_buf.pos,
cache_ahead_buf.len, cache_ahead_buf.max,
nil, 0.8, 1)
r_graph = o.prefix_sep .. r_graph
end
append(stats, opt_time(r), {prefix = "Read-ahead:", suffix = r_graph})
-- These states are not necessarily exclusive. They're about potentially
-- separate mechanisms, whose states may be decoupled.
local state = "reading"
local seek_ts = info["debug-seeking"]
if seek_ts ~= nil then
state = "seeking (to " .. mp.format_time(seek_ts) .. ")"
elseif info["eof"] == true then
state = "eof"
elseif info["underrun"] then
state = "underrun"
elseif info["idle"] == true then
state = "inactive"
end
append(stats, state, {prefix = "State:"})
local speed = info["raw-input-rate"] or 0
local speed_graph = nil
if not display_timer.oneshot and o.use_ass then
speed_graph = generate_graph(cache_speed_buf, cache_speed_buf.pos,
cache_speed_buf.len, cache_speed_buf.max,
nil, 0.8, 1)
speed_graph = o.prefix_sep .. speed_graph
end
append(stats, utils.format_bytes_humanized(speed) .. "/s", {prefix="Speed:",
suffix=speed_graph})
append(stats, utils.format_bytes_humanized(info["total-bytes"]),
{prefix = "Total RAM:"})
append(stats, utils.format_bytes_humanized(info["fw-bytes"]),
{prefix = "Forward RAM:"})
local fc = info["file-cache-bytes"]
if fc ~= nil then
fc = utils.format_bytes_humanized(fc)
else
fc = "(disabled)"
end
append(stats, fc, {prefix = "Disk cache:"})
append(stats, info["debug-low-level-seeks"], {prefix = "Media seeks:"})
append(stats, info["debug-byte-level-seeks"], {prefix = "Stream seeks:"})
append(stats, "", {prefix=o.nl .. o.nl .. "Ranges:", nl="", indent=""})
append(stats, info["bof-cached"] and "yes" or "no",
{prefix = "Start cached:"})
append(stats, info["eof-cached"] and "yes" or "no",
{prefix = "End cached:"})
local ranges = info["seekable-ranges"] or {}
for n, r in ipairs(ranges) do
append(stats, mp.format_time(r["start"]) .. " - " ..
mp.format_time(r["end"]),
{prefix = format("Range %s:", n)})
end
return table.concat(stats)
end
-- Record 1 sample of cache statistics.
-- (Unlike record_data(), this does not return a function, but runs directly.)
local function record_cache_stats()
local info = mp.get_property_native("demuxer-cache-state")
if info == nil then
return
end
local a = info["reader-pts"]
local b = info["cache-end"]
if a ~= nil and b ~= nil then
graph_add_value(cache_ahead_buf, b - a)
end
graph_add_value(cache_speed_buf, info["raw-input-rate"] or 0)
end
cache_recorder_timer = mp.add_periodic_timer(0.25, record_cache_stats)
cache_recorder_timer:kill()
-- Current page and <page key>:<page function> mapping
curr_page = o.key_page_1
pages = {
[o.key_page_1] = { f = default_stats, desc = "Default" },
[o.key_page_2] = { f = vo_stats, desc = "Extended Frame Timings", scroll = true },
[o.key_page_3] = { f = cache_stats, desc = "Cache Statistics" },
[o.key_page_4] = { f = keybinding_info, desc = "Active key bindings", scroll = true },
[o.key_page_0] = { f = perf_stats, desc = "Internal performance info", scroll = true },
}
-- Returns a function to record vsratio/jitter with the specified `skip` value
local function record_data(skip)
init_buffers()
skip = max(skip, 0)
local i = skip
return function()
if i < skip then
i = i + 1
return
else
i = 0
end
if o.plot_vsync_jitter then
local r = mp.get_property_number("vsync-jitter", nil)
if r then
vsjitter_buf.pos = (vsjitter_buf.pos % vsjitter_buf.len) + 1
vsjitter_buf[vsjitter_buf.pos] = r
vsjitter_buf.max = max(vsjitter_buf.max, r)
end
end
if o.plot_vsync_ratio then
local r = mp.get_property_number("vsync-ratio", nil)
if r then
vsratio_buf.pos = (vsratio_buf.pos % vsratio_buf.len) + 1
vsratio_buf[vsratio_buf.pos] = r
vsratio_buf.max = max(vsratio_buf.max, r)
end
end
end
end
-- Call the function for `page` and print it to OSD
local function print_page(page, after_scroll)
-- the page functions assume we start in ass-enabled mode.
-- that's true for mp.set_osd_ass, but not for mp.osd_message.
local ass_content = pages[page].f(after_scroll)
if o.persistent_overlay then
mp.set_osd_ass(0, 0, ass_content)
else
mp.osd_message((o.use_ass and ass_start or "") .. ass_content,
display_timer.oneshot and o.duration or o.redraw_delay + 1)
end
end
local function clear_screen()
if o.persistent_overlay then mp.set_osd_ass(0, 0, "") else mp.osd_message("", 0) end
end
local function scroll_delta(d)
if display_timer.oneshot then display_timer:kill() ; display_timer:resume() end
pages[curr_page].offset = (pages[curr_page].offset or 1) + d
print_page(curr_page, true)
end
local function scroll_up() scroll_delta(-o.scroll_lines) end
local function scroll_down() scroll_delta(o.scroll_lines) end
local function reset_scroll_offsets()
for _, page in pairs(pages) do
page.offset = nil
end
end
local function bind_scroll()
if not scroll_bound then
mp.add_forced_key_binding(o.key_scroll_up, "__forced_"..o.key_scroll_up, scroll_up, {repeatable=true})
mp.add_forced_key_binding(o.key_scroll_down, "__forced_"..o.key_scroll_down, scroll_down, {repeatable=true})
scroll_bound = true
end
end
local function unbind_scroll()
if scroll_bound then
mp.remove_key_binding("__forced_"..o.key_scroll_up)
mp.remove_key_binding("__forced_"..o.key_scroll_down)
scroll_bound = false
end
end
local function update_scroll_bindings(k)
if pages[k].scroll then
bind_scroll()
else
unbind_scroll()
end
end
-- Add keybindings for every page
local function add_page_bindings()
local function a(k)
return function()
reset_scroll_offsets()
update_scroll_bindings(k)
curr_page = k
print_page(k)
if display_timer.oneshot then display_timer:kill() ; display_timer:resume() end
end
end
for k, _ in pairs(pages) do
mp.add_forced_key_binding(k, "__forced_"..k, a(k), {repeatable=true})
end
update_scroll_bindings(curr_page)
end
-- Remove keybindings for every page
local function remove_page_bindings()
for k, _ in pairs(pages) do
mp.remove_key_binding("__forced_"..k)
end
unbind_scroll()
end
local function process_key_binding(oneshot)
reset_scroll_offsets()
-- Stats are already being displayed
if display_timer:is_enabled() then
-- Previous and current keys were oneshot -> restart timer
if display_timer.oneshot and oneshot then
display_timer:kill()
print_page(curr_page)
display_timer:resume()
-- Previous and current keys were toggling -> end toggling
elseif not display_timer.oneshot and not oneshot then
display_timer:kill()
cache_recorder_timer:stop()
if tm_viz_prev ~= nil then
mp.set_property_native("tone-mapping-visualize", tm_viz_prev)
tm_viz_prev = nil
end
clear_screen()
remove_page_bindings()
if recorder then
mp.unobserve_property(recorder)
recorder = nil
end
end
-- No stats are being displayed yet
else
if not oneshot and (o.plot_vsync_jitter or o.plot_vsync_ratio) then
recorder = record_data(o.skip_frames)
-- Rely on the fact that "vsync-ratio" is updated at the same time.
-- Using "none" to get a sample any time, even if it does not change.
-- Will stop working if "vsync-jitter" property change notification
-- changes, but it's fine for an internal script.
mp.observe_property("vsync-jitter", "none", recorder)
end
if not oneshot and o.plot_tonemapping_lut then
tm_viz_prev = mp.get_property_native("tone-mapping-visualize")
mp.set_property_native("tone-mapping-visualize", true)
end
if not oneshot then
cache_ahead_buf = {0, pos = 1, len = 50, max = 0}
cache_speed_buf = {0, pos = 1, len = 50, max = 0}
cache_recorder_timer:resume()
end
display_timer:kill()
display_timer.oneshot = oneshot
display_timer.timeout = oneshot and o.duration or o.redraw_delay
add_page_bindings()
print_page(curr_page)
display_timer:resume()
end
end
-- Create the timer used for redrawing (toggling) or clearing the screen (oneshot)
-- The duration here is not important and always set in process_key_binding()
display_timer = mp.add_periodic_timer(o.duration,
function()
if display_timer.oneshot then
display_timer:kill() ; clear_screen() ; remove_page_bindings()
else
print_page(curr_page)
end
end)
display_timer:kill()
-- Single invocation key binding
mp.add_key_binding(nil, "display-stats", function() process_key_binding(true) end,
{repeatable=true})
-- Toggling key binding
mp.add_key_binding(nil, "display-stats-toggle", function() process_key_binding(false) end,
{repeatable=false})
-- Single invocation bindings without key, can be used in input.conf to create
-- bindings for a specific page: "e script-binding stats/display-page-2"
for k, _ in pairs(pages) do
mp.add_key_binding(nil, "display-page-" .. k,
function()
curr_page = k
process_key_binding(true)
end, {repeatable=true})
end
-- Reprint stats immediately when VO was reconfigured, only when toggled
mp.register_event("video-reconfig",
function()
if display_timer:is_enabled() then
print_page(curr_page)
end
end)
-- --script-opts=stats-bindlist=[-]{yes|<TERM-WIDTH>}
if o.bindlist ~= "no" then
mp.command("no-osd set really-quiet yes")
if o.bindlist:sub(1, 1) == "-" then
o.bindlist = o.bindlist:sub(2)
o.no_ass_b0 = ""
o.no_ass_b1 = ""
end
local width = max(40, math.floor(tonumber(o.bindlist) or 79))
mp.add_timeout(0, function() -- wait for all other scripts to finish init
o.ass_formatting = false
o.no_ass_indent = " "
eval_ass_formatting()
io.write(pages[o.key_page_4].desc .. ":" ..
table.concat(get_kbinfo_lines(width)) .. "\n")
mp.command("quit")
end)
end