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module-switch-on-port-available: Do not switch profile if current port is available

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For switching profiles, we are a little more cautious, only switch
from an unavailable port to an available one. Profile switching is
mainly used for HDMI/DisplayPort, and this is to avoid switching from
analog to HDMI/DP when it becomes available.

See http://lists.freedesktop.org/archives/pulseaudio-discuss/2012-March/012991.html
and replies for more information.

Signed-off-by: David Henningsson <david.henningsson@canonical.com>
This commit is contained in:
David Henningsson 2012-03-19 16:42:10 +01:00
parent 00c3a4958e
commit 1f97db720b
1 changed files with 22 additions and 2 deletions
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24
src/modules/module-switch-on-port-available.c
View file

@ -60,8 +60,13 @@ static pa_bool_t try_to_switch_profile(pa_card *card, pa_device_port *port) {
if (best_profile && best_profile->priority >= profile->priority)
continue;
if (!card->active_profile) {
best_profile = profile;
continue;
}
/* We make a best effort to keep other direction unchanged */
if (card->active_profile && !port->is_input) {
if (!port->is_input) {
if (card->active_profile->n_sources != profile->n_sources)
continue;
@ -69,7 +74,7 @@ static pa_bool_t try_to_switch_profile(pa_card *card, pa_device_port *port) {
continue;
}
if (card->active_profile && !port->is_output) {
if (!port->is_output) {
if (card->active_profile->n_sinks != profile->n_sinks)
continue;
@ -77,6 +82,21 @@ static pa_bool_t try_to_switch_profile(pa_card *card, pa_device_port *port) {
continue;
}
if (port->is_output) {
/* Try not to switch to HDMI sinks from analog when HDMI is becoming available */
uint32_t state2;
pa_sink *sink;
pa_bool_t found_active_port = FALSE;
PA_IDXSET_FOREACH(sink, card->sinks, state2) {
if (!sink->active_port)
continue;
if (sink->active_port->available != PA_PORT_AVAILABLE_NO)
found_active_port = TRUE;
}
if (found_active_port)
continue;
}
best_profile = profile;
}