[pulseaudio-discuss] Changing the per-process source/sink for a process that is NOT running

[Tanu Kaskinen]

On Wed, 2017-09-27 at 18:19 +0000, Chris Lopes wrote:
> Hi,
> I see here some guidance on how to change the source or sink for a
> running process (aka move a stream):https://askubuntu.com/a/72076/566
> 303
> 
> But is there a way (command line) to change the source and/or sink
> for a process that either:
> 1) Has been run in the past but is not currently running ?or2) Has
> never been run (from PulseAudio's perspective) ?
> I guess this assumes the module-stream-restore module is active and
> actually persisting and restoring the streams on a per application
> basis, which is something that I would like to keep intact.  In other
> words I do not want to force apps to always revert to the default.
> 
> I see that there is a ...-stream-volumes.tdb in my user config, and I
> can dump its contents with tdbdump to see the configuration.But I
> would rather not experiment with editing this .tdb file directly.
> Bonus question: It seems that some streams are configured not by
> process name but by "media role" (source-output-by-media-role), so I
> would like to be able to change the source or sink for a media role
> even if there is no application currently running with that role.

Unfortunately, there's no command line tool for interacting with
module-stream-restore, nor any other way to achieve what you want. It
would be possible to write such program, because module-stream-restore
provides the necessary protocol for that, and in fact it would make
sense to support this in pactl, but nobody has written the code.

-- 
Tanu

https://www.patreon.com/tanuk