mirror of
https://github.com/OpenVoiceOS/OpenVoiceOS
synced 2025-02-03 12:07:46 +01:00
94 lines
2.3 KiB
Lua
94 lines
2.3 KiB
Lua
-- WirePlumber
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--
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-- Copyright © 2021 Collabora Ltd.
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-- @author Frédéric Danis <frederic.danis@collabora.com>
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--
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-- SPDX-License-Identifier: MIT
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local sink_ids = {}
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local fallback_node = nil
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node_om = ObjectManager {
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Interest {
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type = "node",
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Constraint { "media.class", "matches", "Audio/Sink", type = "pw-global" },
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-- Do not consider endpoints created by WirePlumber
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Constraint { "wireplumber.is-endpoint", "!", true, type = "pw" },
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-- or the fallback sink itself
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Constraint { "wireplumber.is-fallback", "!", true, type = "pw" },
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}
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}
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function createFallbackSink()
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if fallback_node then
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return
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end
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Log.info("Create fallback sink")
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local properties = {}
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properties["node.name"] = "auto_null"
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properties["node.description"] = "Dummy Output"
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properties["audio.rate"] = 48000
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properties["audio.channels"] = 2
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properties["audio.position"] = "FL,FR"
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properties["media.class"] = "Audio/Sink"
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properties["factory.name"] = "support.null-audio-sink"
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properties["node.virtual"] = "true"
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properties["monitor.channel-volumes"] = "true"
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properties["wireplumber.is-fallback"] = "true"
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properties["priority.session"] = 500
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fallback_node = LocalNode("adapter", properties)
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fallback_node:activate(Feature.Proxy.BOUND)
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end
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function checkSinks()
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local sink_ids_items = 0
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for _ in pairs(sink_ids) do sink_ids_items = sink_ids_items + 1 end
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if sink_ids_items > 0 then
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if fallback_node then
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Log.info("Remove fallback sink")
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fallback_node = nil
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end
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elseif not fallback_node then
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createFallbackSink()
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end
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end
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function checkSinksAfterTimeout()
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if timeout_source then
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timeout_source:destroy()
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end
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timeout_source = Core.timeout_add(1000, function ()
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checkSinks()
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timeout_source = nil
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end)
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end
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node_om:connect("object-added", function (_, node)
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Log.debug("object added: " .. node.properties["object.id"] .. " " ..
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tostring(node.properties["node.name"]))
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sink_ids[node.properties["object.id"]] = node.properties["node.name"]
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checkSinksAfterTimeout()
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end)
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node_om:connect("object-removed", function (_, node)
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Log.debug("object removed: " .. node.properties["object.id"] .. " " ..
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tostring(node.properties["node.name"]))
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sink_ids[node.properties["object.id"]] = nil
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checkSinksAfterTimeout()
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end)
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node_om:activate()
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checkSinksAfterTimeout()
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