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🎥 Command line media player
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130-- Test script for some command API details.
local utils = require("mp.utils")
local 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")
local timer = mp.add_periodic_timer(0.1, function() print("I'm alive") end) timer:resume()
print("Slow screenshot command...") local result = mp.command_native({"screenshot"}) print("done, res: " .. utils.to_string(result))
print("Slow screenshot async command...") result = 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(result))
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)
mp.command_native_async({_name = "subprocess", args = {"wc", "-c"}, stdin_data = "hello", capture_stdout = true}, function(_, val) print("Should be '5': " .. val.stdout) end) -- blocking stdin by default mp.command_native_async({_name = "subprocess", args = {"cat"}, capture_stdout = true}, function(_, val) print("Should be 0: " .. #val.stdout) end) -- stdin + detached mp.command_native_async({_name = "subprocess", args = {"bash", "-c", "(sleep 5s ; cat)"}, stdin_data = "this should appear after 5s.\n", detach = true}, function(_, val) print("5s test: " .. val.status) 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)
local counterlocal function freeze_test(playback_only) -- This "freezes" the script, should be killed via timeout. counter = counter and counter + 1 or 0 print("freeze! " .. counter) local x = mp.command_native({_name = "subprocess", playback_only = playback_only, args = {"sleep", "inf"}}) print("done, killed=" .. utils.to_string(x.killed_by_us))end
mp.register_event("shutdown", function() freeze_test(false)end)
mp.register_event("idle", function() freeze_test(true)end)