OpenVoiceOS/buildroot-external/rootfs-overlay/etc/wireplumber/scripts/suspend-node.lua

60 lines
1.6 KiB
Lua

-- WirePlumber
--
-- Copyright © 2021 Collabora Ltd.
-- @author George Kiagiadakis <george.kiagiadakis@collabora.com>
--
-- SPDX-License-Identifier: MIT
om = ObjectManager {
Interest { type = "node",
Constraint { "media.class", "matches", "Audio/*" }
},
Interest { type = "node",
Constraint { "media.class", "matches", "Video/*" }
},
}
sources = {}
om:connect("object-added", function (om, node)
node:connect("state-changed", function (node, old_state, cur_state)
-- Always clear the current source if any
local id = node["bound-id"]
if sources[id] then
sources[id]:destroy()
sources[id] = nil
end
-- Add a timeout source if idle for at least 5 seconds
if cur_state == "idle" or cur_state == "error" then
-- honor "session.suspend-timeout-seconds" if specified
local timeout =
tonumber(node.properties["session.suspend-timeout-seconds"]) or 5
if timeout == 0 then
return
end
-- add idle timeout; multiply by 1000, timeout_add() expects ms
sources[id] = Core.timeout_add(timeout * 1000, function()
-- Suspend the node
-- but check first if the node still exists
if (node:get_active_features() & Feature.Proxy.BOUND) ~= 0 then
Log.info(node, "was idle for a while; suspending ...")
node:send_command("Suspend")
end
-- Unref the source
sources[id] = nil
-- false (== G_SOURCE_REMOVE) destroys the source so that this
-- function does not get fired again after 5 seconds
return false
end)
end
end)
end)
om:activate()