PipeWire: pw-link

PipeWire 1.6.5

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pw-link

The PipeWire Link Command

# SYNOPSIS

pw-link [options] -o|-i|-l|-t [out-pattern] [in-pattern]

pw-link [options] output input

pw-link [options] -d output input

pw-link [options] -d link-id

# DESCRIPTION

List, create and destroy links between PipeWire ports.

# COMMON OPTIONS

-r | --remote=NAME
  The name the remote instance to monitor. If left unspecified, a connection is made to the default PipeWire instance.

-h | --help
  Show help.

--version
  Show version information.

# LISTING PORTS AND LINKS

Specify one of -o, -i or -l to list the matching optional input and output ports and their links.

-o | --output
  List output ports

-i | --input
  List input ports

-l | --links
  List links

-t | --latency
  List port latencies

-m | --monitor
  Monitor links and ports. pw-link will not exit but monitor and print new and destroyed ports or links.

-I | --id
  List IDs. Also list the unique link and port ids.

-v | --verbose
  Verbose port properties. Also list the port-object-path and the port-alias.

# CONNECTING PORTS

Without any list option (-i, -o or -l), the given ports will be linked. Valid port specifications are:

port-id

As obtained with the -I option when listing ports.

node-name:port-name

As obtained when listing ports.

port-object-path

As obtained from the first alternative name for the port when listing them with the -v option.

port-alias

As obtained from the second alternative name for the ports when listing them with the -v option.

Extra options when linking can be given:

-L | --linger
  Linger. Will create a link that exists after pw-link is destroyed. This is the default behaviour, unless the -m option is given.

-P | --passive
  Passive link. A passive link will keep both nodes it links inactive unless another non-passive link is activating the nodes. You can use this to link a sink to a filter and have them both suspended when nothing else is linked to either of them.

-p | --props=PROPS
  Properties as JSON object. Give extra properties when creaing the link.

# DISCONNECTING PORTS

When the -d option is given, an existing link between port is destroyed.

To disconnect port, a single link-id, as obtained when listing links with the -I option, or two port specifications can be given. See the connecting ports section for valid port specifications.

-d | --disconnect
  Disconnect ports

# EXAMPLES

pw-link -iol

List all port and their links.

pw-link -lm

List all links and monitor changes until pw-link is stopped.

pw-link paplay:output_FL alsa_output.pci-0000_00_1b.0.analog-stereo:playback_FL

Link the given output port to the input port.

pw-link -lI

List links and their Id.

pw-link -d 89

Destroy the link with id 89.

# AUTHORS

The PipeWire Developers <https://gitlab.freedesktop.org/pipewire/pipewire/issues>; PipeWire is available from <https://pipewire.org>

# SEE ALSO

pipewire(1), pw-cli(1)