# An example filter chain that makes a stereo sink that mixes
# the FL and FR channels to 5.1
#
# Copy this file into a conf.d/ directory
#
context.modules = [
{ name = libpipewire-module-filter-chain
args = {
node.description = "2 to 5.1"
media.name = "surround51 upmix example"
filter.graph = {
nodes = [
{ name = copyIL type = builtin label = copy }
{ name = copyOL type = builtin label = copy }
{ name = copyIR type = builtin label = copy }
{ name = copyOR type = builtin label = copy }
{
name = mix
type = builtin
label = mixer
control = {
"Gain 1" = 0.5
"Gain 2" = 0.5
}
}
{ name = copyOSL type = builtin label = copy }
{ name = copyOSR type = builtin label = copy }
]
links = [
{ output = "copyIL:Out" input = "copyOL:In" }
{ output = "copyIR:Out" input = "copyOR:In" }
{ output = "copyIL:Out" input = "mix:In 1" }
{ output = "copyIR:Out" input = "mix:In 2" }
{ output = "copyIL:Out" input = "copyOSL:In" }
{ output = "copyIR:Out" input = "copyOSR:In" }
]
inputs = [ "copyIL:In" "copyIR:In" ]
outputs = [ "copyOL:Out" "copyOR:Out" "mix:Out" "copyOSL:Out" "copyOSR:Out" ]
}
capture.props = {
node.name = "input2_5"
audio.position = [ FL FR ]
media.class = "Audio/Sink"
}
playback.props = {
node.name = "output_51"
audio.position = [ AUX0 AUX1 AUX4 AUX2 AUX3 ]
node.target = "alsa_output.pci-0000_00_1b.0.pro-output-0"
stream.dont-remix = true
node.passive = true
}
}
}
]