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port: improve parsing of passive modes

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Make a function to parse the passive mode and use that in ports and
nodes. Improve the node passive mode parsing a little.

Also make Duplex nodes follow-suspend.
This commit is contained in:
Wim Taymans 2026-04-08 13:57:55 +02:00
parent 446e36807f
commit 49073cf527
4 changed files with 28 additions and 32 deletions
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13
doc/dox/internals/running.dox
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@ -44,7 +44,7 @@ wide range of use cases.
# Node passive modes
A Node can have 8 passive modes, `node.passive` can be set to a comma separated list
A Node can have 10 passive modes, `node.passive` can be set to a comma separated list
of the following values:
- `false`, both input and output ports have `port.passive = false`
@ -56,10 +56,13 @@ of the following values:
- `out-follow`, output ports have `port.passive = follow`
- `follow`, input and output ports have `port.passive = follow`. This is the same
as `in-follow,out-follow`.
- `follow-suspend`, input and output ports have `port.passive = follow-suspend`
- `in-follow-suspend`, input ports have `port.passive = follow-suspend`
- `out-follow-suspend`, output ports have `port.passive = follow-suspend`
- `follow-suspend`, input and output ports have `port.passive = follow-suspend`.
This is the same as `in-follow-suspend,out-follow-suspend`.
Node by default have the `false` mode but nodes with the `media.class` property
containing `Sink` or `Source` receive the `follow-suspend` mode by default.
Nodes by default have the `false` mode but nodes with the `media.class` property
containing `Sink`, `Source` or `Duplex` receive the `follow-suspend` mode by default.
Unless explicitly configured, ports inherit the mode from their parent node.
@ -237,7 +240,7 @@ connected to the sink monitor ports.
```
We would like to keep the monitor stream and the ALSA sink suspended
unless something else activated the ALSA Sink:
unless something else activates the ALSA Sink:
```