mpv_clock.lua

-- Shows the current OS time in the OSD
-- Pressing 'c' shows it for 5 seconds, and pressing 'C' (Shift+C) toggles it on indefinitely until you toggle it off again.
-- Created by Yuto Takano, inspired by blue-sky-r/mpv.git
-- Edit the cfg below to change the key-bindings, date format, and duration.

local cfg = {
  format     = "%H:%M",
  duration   = 5,
  key        = 'c',
  togglekey  = 'C',
}

-- global clock show state variable
local is_shown = false
-- global osd timer variable
local osd_timer = nil

-- Simply show clock for the desired duration
local function osd_clock()
  local s = os.date(cfg.format)
  mp.osd_message(s, cfg.duration)
  collectgarbage()
  collectgarbage()
end

-- Similar to the above, but is called by the periodic_timer
local function osd_clock_timer()
  -- do not run if toggled off. Shouldn't be called since periodic_timer is stop()-ed but just in case.
  if is_shown then
    local s = os.date(cfg.format)
    -- show time for 1 second
    mp.osd_message(s, 1)
  end
  collectgarbage()
  collectgarbage()
end

local function osd_clock_toggle()
  is_shown = not is_shown

  -- make sure timer is defined (n>1 th toggle)
  if osd_timer ~= nil then
    if is_shown then
      osd_timer:resume()
    else
      osd_timer:stop()
    end
  else
    -- otherwise create a timer to call the clock on every second
    osd_clock_timer()
    osd_timer = mp.add_periodic_timer(1, osd_clock_timer)
  end
end

mp.add_key_binding(cfg.key, 'show-clock', osd_clock)
mp.msg.verbose("key:'"..cfg.key.."' bound to 'show-clock'")
mp.add_key_binding(cfg.togglekey, 'toggle-clock', osd_clock_toggle)
mp.msg.verbose("key:'"..cfg.togglekey.."' bound to 'toggle-clock'")