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modules: add tunnel.may-pause option for pipe-tunnel

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To override the default may-pause behaviour of streams.
This commit is contained in:
Wim Taymans 2023-11-15 13:02:08 +01:00
parent 63385cedd0
commit 0278695e7d
1 changed files with 11 additions and 0 deletions
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11
src/modules/module-pipe-tunnel.c
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@ -40,6 +40,7 @@
* ## Module Options
*
* - `tunnel.mode`: the desired tunnel to create. (Default `playback`)
* - `tunnel.may-pause`: if the tunnel stream is allowed to pause on xrun
* - `pipe.filename`: the filename of the pipe.
* - `stream.props`: Extra properties for the local stream.
*
@ -55,6 +56,12 @@
* When `tunnel.mode` is `source`, a source node is created. Samples read from
* the the pipe will be made available on the source.
*
* `tunnel.may-pause` allows the tunnel stream to become inactive (paused) when
* there is no data in the fifo or when the fifo is full. For `capture` and
* `playback` `tunnel.mode` this is by default true. For `source` and `sink`
* `tunnel.mode`, this is by default false. A paused stream will consume no
* CPU and will resume when the fifo becomes readable or writable again.
*
* When `pipe.filename` is not given, a default fifo in `/tmp/fifo_input` or
* `/tmp/fifo_output` will be created that can be written and read respectively,
* depending on the selected `tunnel.mode`.
@ -86,6 +93,7 @@
* { name = libpipewire-module-pipe-tunnel
* args = {
* tunnel.mode = playback
* #tunnel.may-pause = true
* # Set the pipe name to tunnel to
* pipe.filename = "/tmp/fifo_output"
* #audio.format=<sample format>
@ -128,6 +136,7 @@ PW_LOG_TOPIC_STATIC(mod_topic, "mod." NAME);
"( audio.channels=<number of channels> ) " \
"( audio.position=<channel map> ) " \
"( tunnel.mode=capture|playback|sink|source )" \
"( tunnel.may-pause=<bool, if the stream can pause> )" \
"( pipe.filename=<filename> )" \
"( stream.props=<properties> ) "
@ -898,6 +907,8 @@ int pipewire__module_init(struct pw_impl_module *module, const char *args)
res = -EINVAL;
goto error;
}
if ((str = pw_properties_get(props, "tunnel.may-pause")) != NULL)
impl->may_pause = spa_atob(str);
if (pw_properties_get(props, PW_KEY_NODE_VIRTUAL) == NULL)
pw_properties_set(props, PW_KEY_NODE_VIRTUAL, "true");