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sink/source: Don't update default sink/source before calling PA_CORE_HOOK_{SINK,SOURCE}_PUT

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In sink_put() and source_put(), pa_core_update_default_{sink,source}() was called
before the PA_CORE_HOOK_{SINK,SOURCE}_PUT hook. Therefore module-switch-on-connect
could not correctly determine the old default sink/source if no user default was
set and a sink/source with higher priority than any other sink/source turned up.

This patch corrects the problem by swapping the order of the hook call and the
pa_core_update_default_sink() call.

Additionally it corrects a problem in module-switch-on-connect. If, after the
change above, the new sink/source was the first sink/source to appear, pulseaudio
would crash because module-switch-on-connect assumed that the default sink/source
was not NULL. The patch checks if the default sink/source is NULL and only sets
the new default sink/source in that case.
This commit is contained in:
Georg Chini 2017-05-18 07:47:27 +02:00
parent edc465da77
commit e08124f6ba
3 changed files with 20 additions and 4 deletions
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6
src/pulsecore/sink.c
View file

@ -660,10 +660,12 @@ void pa_sink_put(pa_sink* s) {
pa_source_put(s->monitor_source);
pa_core_update_default_sink(s->core);
pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_NEW, s->index);
pa_hook_fire(&s->core->hooks[PA_CORE_HOOK_SINK_PUT], s);
/* This function must be called after the PA_CORE_HOOK_SINK_PUT hook,
* because module-switch-on-connect needs to know the old default sink */
pa_core_update_default_sink(s->core);
}
/* Called from main context */