Current File : //usr/share/wireplumber/policy.lua.d/10-default-policy.lua
default_policy = {}
default_policy.enabled = true
default_policy.properties = {}
default_policy.endpoints = {}
default_policy.policy = {
["move"] = true, -- moves session items when metadata target.node changes
["follow"] = true, -- moves session items to the default device when it has changed
-- Whether to forward the ports format of filter stream nodes to their
-- associated filter device nodes. This is needed for application to stream
-- surround audio if echo-cancel is enabled.
["filter.forward-format"] = false,
-- Set to 'true' to disable channel splitting & merging on nodes and enable
-- passthrough of audio in the same format as the format of the device.
-- Note that this breaks JACK support; it is generally not recommended
["audio.no-dsp"] = false,
-- how much to lower the volume of lower priority streams when ducking
-- note that this is a linear volume modifier (not cubic as in pulseaudio)
["duck.level"] = 0.3,
}
bluetooth_policy = {}
bluetooth_policy.policy = {
-- Whether to store state on the filesystem.
["use-persistent-storage"] = true,
-- Whether to use headset profile in the presence of an input stream.
["media-role.use-headset-profile"] = true,
-- Application names correspond to application.name in stream properties.
-- Applications which do not set media.role but which should be considered
-- for role based profile switching can be specified here.
["media-role.applications"] = {
"Firefox", "Chromium input", "Google Chrome input", "Brave input",
"Microsoft Edge input", "Vivaldi input", "ZOOM VoiceEngine",
"Telegram Desktop", "telegram-desktop", "linphone", "Mumble",
"WEBRTC VoiceEngine", "Skype", "Firefox Developer Edition",
},
}
dsp_policy = {}
dsp_policy.policy = {}
dsp_policy.policy.properties = {}
-- An array of matches/filters to apply.
-- `matches` are rules for matching a sink node. It is an array of
-- properties that all need to match the regexp. If any of the
-- matches in an array work, the filters are executed for the sink.
-- `filter_chain` is a JSON string of parameters to filter-chain module
-- `properties` table only has `pro_audio` boolean, which enables Pro Audio mode on the sink when applying DSP
dsp_policy.policy.rules = {}
function default_policy.enable()
if default_policy.enabled == false then
return
end
-- Session item factories, building blocks for the session management graph
-- Do not disable these unless you really know what you are doing
load_module("si-node")
load_module("si-audio-adapter")
load_module("si-standard-link")
load_module("si-audio-endpoint")
-- API to access default nodes from scripts
load_module("default-nodes-api")
-- API to access mixer controls, needed for volume ducking
load_module("mixer-api")
-- Create endpoints statically at startup
load_script("static-endpoints.lua", default_policy.endpoints)
-- Create items for nodes that appear in the graph
load_script("create-item.lua", default_policy.policy)
-- Link nodes to each other to make media flow in the graph
load_script("policy-node.lua", default_policy.policy)
-- Link client nodes with endpoints to make media flow in the graph
load_script("policy-endpoint-client.lua", default_policy.policy)
load_script("policy-endpoint-client-links.lua", default_policy.policy)
-- Link endpoints with device nodes to make media flow in the graph
load_script("policy-endpoint-device.lua", default_policy.policy)
-- Switch bluetooth profile based on media.role
load_script("policy-bluetooth.lua", bluetooth_policy.policy)
-- Load filter chains for hardware requiring DSP
load_script("policy-dsp.lua", dsp_policy.policy)
end
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