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From fa883e254c28a36657b0f28443bd69ee5a1821e0 Mon Sep 17 00:00:00 2001
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From: Tanu Kaskinen <tanuk@iki.fi>
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Date: Thu, 16 Feb 2017 12:09:39 +0200
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Subject: [PATCH 4/4] core, device-port: check availability when choosing the
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default device
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It doesn't make sense to use a sink or source whose active port is
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unavailable, so let's take this into account when choosing the default
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sink and source.
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---
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src/pulsecore/core.c | 16 ++++++++++++++++
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src/pulsecore/device-port.c | 8 ++++++++
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2 files changed, 24 insertions(+)
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diff --git a/src/pulsecore/core.c b/src/pulsecore/core.c
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index da1abb3ba..340b41ff3 100644
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--- a/src/pulsecore/core.c
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+++ b/src/pulsecore/core.c
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@@ -265,6 +265,14 @@ static int compare_sinks(pa_sink *a, pa_sink *b) {
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core = a->core;
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+ /* Available sinks always beat unavailable sinks. */
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+ if (a->active_port && a->active_port->available == PA_AVAILABLE_NO
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+ && (!b->active_port || b->active_port->available != PA_AVAILABLE_NO))
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+ return -1;
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+ if (b->active_port && b->active_port->available == PA_AVAILABLE_NO
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+ && (!a->active_port || a->active_port->available != PA_AVAILABLE_NO))
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+ return 1;
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+
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/* The configured default sink is preferred over any other sink. */
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if (b == core->configured_default_sink)
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return -1;
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@@ -331,6 +339,14 @@ static int compare_sources(pa_source *a, pa_source *b) {
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core = a->core;
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+ /* Available sources always beat unavailable sources. */
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+ if (a->active_port && a->active_port->available == PA_AVAILABLE_NO
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+ && (!b->active_port || b->active_port->available != PA_AVAILABLE_NO))
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+ return -1;
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+ if (b->active_port && b->active_port->available == PA_AVAILABLE_NO
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+ && (!a->active_port || a->active_port->available != PA_AVAILABLE_NO))
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+ return 1;
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+
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/* The configured default source is preferred over any other source. */
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if (b == core->configured_default_source)
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return -1;
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diff --git a/src/pulsecore/device-port.c b/src/pulsecore/device-port.c
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index 7c9ddf325..76a7e80a1 100644
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--- a/src/pulsecore/device-port.c
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+++ b/src/pulsecore/device-port.c
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@@ -93,6 +93,14 @@ void pa_device_port_set_available(pa_device_port *p, pa_available_t status) {
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* be created before port objects, and then p->card could be non-NULL for
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* the whole lifecycle of pa_device_port. */
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if (p->card) {
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+ /* A sink or source whose active port is unavailable can't be the
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+ * default sink/source, so port availability changes may affect the
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+ * default sink/source choice. */
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+ if (p->direction == PA_DIRECTION_OUTPUT)
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+ pa_core_update_default_sink(p->core);
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+ else
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+ pa_core_update_default_source(p->core);
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+
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pa_subscription_post(p->core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_CHANGE, p->card->index);
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pa_hook_fire(&p->core->hooks[PA_CORE_HOOK_PORT_AVAILABLE_CHANGED], p);
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}
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--
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2.14.3
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