__ __ __ __ _____ _ _ _____ _ _ _
| \/ | \ \ / / | __ \ (_) | | / ____| | | | |
| \ / |_ __\ V / | |__) | __ ___ ____ _| |_ ___ | (___ | |__ ___| | |
| |\/| | '__|> < | ___/ '__| \ \ / / _` | __/ _ \ \___ \| '_ \ / _ \ | |
| | | | |_ / . \ | | | | | |\ V / (_| | || __/ ____) | | | | __/ | |
|_| |_|_(_)_/ \_\ |_| |_| |_| \_/ \__,_|\__\___| |_____/|_| |_|\___V 2.1
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-- WirePlumber
-- Copyright © 2022 Collabora Ltd.
-- @author Ashok Sidipotu <ashok.sidipotu@collabora.com>
-- SPDX-License-Identifier: MIT
-- Script is a Lua Module of common Lua utility functions
local cutils = {}
function cutils.parseBool (var)
return var and (var:lower () == "true" or var == "1")
end
function cutils.parseParam (param, id)
local props = param:parse ()
if props.pod_type == "Object" and props.object_id == id then
return props.properties
else
return nil
end
end
function cutils.mediaClassToDirection (media_class)
if media_class:find ("Sink") or
media_class:find ("Input") or
media_class:find ("Duplex") then
return "input"
elseif media_class:find ("Source") or media_class:find ("Output") then
return "output"
else
return nil
end
end
function cutils.getTargetDirection (properties)
local target_direction = nil
if properties ["item.node.direction"] == "output" or
(properties ["item.node.direction"] == "input" and
cutils.parseBool (properties ["stream.capture.sink"])) then
target_direction = "input"
else
target_direction = "output"
end
return target_direction
end
local default_nodes = Plugin.find ("default-nodes-api")
function cutils.getDefaultNode (properties, target_direction)
local target_media_class =
properties ["media.type"] ..
(target_direction == "input" and "/Sink" or "/Source")
if not default_nodes then
default_nodes = Plugin.find ("default-nodes-api")
end
return default_nodes:call ("get-default-node", target_media_class)
end
cutils.source_plugin = nil
cutils.object_managers = {}
function cutils.get_object_manager (name)
cutils.source_plugin = cutils.source_plugin or
Plugin.find ("standard-event-source")
cutils.object_managers [name] = cutils.object_managers [name] or
cutils.source_plugin:call ("get-object-manager", name)
return cutils.object_managers [name]
end
function cutils.get_default_metadata_object ()
return cutils.get_object_manager ("metadata"):lookup {
Constraint { "metadata.name", "=", "default" },
}
end
function cutils.arrayContains (a, value)
for _, v in ipairs (a) do
if v == value then
return true
end
end
return false
end
function cutils.get_application_name ()
return Core.get_properties()["application.name"] or "WirePlumber"
end
return cutils