63 lines
1.7 KiB
Lua
63 lines
1.7 KiB
Lua
-- WirePlumber
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--
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-- Copyright © 2021 Collabora Ltd.
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-- @author George Kiagiadakis <george.kiagiadakis@collabora.com>
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--
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-- SPDX-License-Identifier: MIT
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log = Log.open_topic ("s-node")
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sources = {}
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SimpleEventHook {
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name = "node/suspend-node",
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interests = {
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EventInterest {
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Constraint { "event.type", "=", "node-state-changed" },
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Constraint { "media.class", "matches", "Audio/*" },
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},
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EventInterest {
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Constraint { "event.type", "=", "node-state-changed" },
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Constraint { "media.class", "matches", "Video/*" },
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},
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},
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execute = function (event)
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local node = event:get_subject ()
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local new_state = event:get_properties ()["event.subject.new-state"]
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log:debug (node, "changed state to " .. new_state)
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-- Always clear the current source if any
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local id = node["bound-id"]
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if sources[id] then
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sources[id]:destroy()
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sources[id] = nil
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end
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-- Add a timeout source if idle for at least 5 seconds
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if new_state == "idle" or new_state == "error" then
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-- honor "session.suspend-timeout-seconds" if specified
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local timeout =
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tonumber(node.properties["session.suspend-timeout-seconds"]) or 5
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if timeout == 0 then
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return
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end
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-- add idle timeout; multiply by 1000, timeout_add() expects ms
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sources[id] = Core.timeout_add(timeout * 1000, function()
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-- Suspend the node
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log:info(node, "was idle for a while; suspending ...")
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node:send_command("Suspend")
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-- Unref the source
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sources[id] = nil
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-- false (== G_SOURCE_REMOVE) destroys the source so that this
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-- function does not get fired again after 5 seconds
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return false
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end)
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end
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end
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}:register ()
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