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🎥 Command line media player
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Lua
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596-- Test script for some command API details.
local utils = require("mp.utils")
function join(sep, arr, count) local r = "" if count == nil then count = #arr end for i = 1, count do if i > 1 then r = r .. sep end r = r .. utils.to_string(arr[i]) end return rend
mp.observe_property("vo-configured", "bool", function(_, v) if v ~= true then return end
print("async expand-text") mp.command_native_async({"expand-text", "hello ${path}!"}, function(res, val, err) print("done async expand-text: " .. join(" ", {res, val, err})) end)
-- make screenshot writing very slow mp.set_property("screenshot-format", "png") mp.set_property("screenshot-png-compression", "9")
timer = mp.add_periodic_timer(0.1, function() print("I'm alive") end) timer:resume()
print("Slow screenshot command...") res, err = mp.command_native({"screenshot"}) print("done, res: " .. utils.to_string(res))
print("Slow screenshot async command...") res, err = mp.command_native_async({"screenshot"}, function(res) print("done (async), res: " .. utils.to_string(res)) timer:kill() end) print("done (sending), res: " .. utils.to_string(res))
print("Broken screenshot async command...") mp.command_native_async({"screenshot-to-file", "/nonexistent/bogus.png"}, function(res, val, err) print("done err scr.: " .. join(" ", {res, val, err})) end)
mp.command_native_async({name = "subprocess", args = {"sh", "-c", "echo hi && sleep 10s"}, capture_stdout = true}, function(res, val, err) print("done subprocess: " .. join(" ", {res, val, err})) end)
local x = mp.command_native_async({name = "subprocess", args = {"sleep", "inf"}}, function(res, val, err) print("done sleep inf subprocess: " .. join(" ", {res, val, err})) end) mp.add_timeout(15, function() print("aborting sleep inf subprocess after timeout") mp.abort_async_command(x) end)
-- (assuming this "freezes") local y = mp.command_native_async({name = "sub-add", url = "-"}, function(res, val, err) print("done sub-add stdin: " .. join(" ", {res, val, err})) end) mp.add_timeout(20, function() print("aborting sub-add stdin after timeout") mp.abort_async_command(y) end)
-- This should get killed on script exit. mp.command_native_async({name = "subprocess", playback_only = false, args = {"sleep", "inf"}}, function()end)
-- Runs detached; should be killed on player exit (forces timeout) mp.command_native({_flags={"async"}, name = "subprocess", playback_only = false, args = {"sleep", "inf"}})end)
mp.register_event("shutdown", function() -- This "freezes" the script, should be killed via timeout. print("freeze!") local x = mp.command_native({name = "subprocess", playback_only = false, args = {"sleep", "inf"}}) print("done, killed=" .. utils.to_string(x.killed_by_us))end)