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module-switch-on-connect: add an argument for conditionally connecting

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On a machine without fixed connecting audio devices like internal
microphone or internal speaker, and when there is no external audio
devices plugging in, the default source/sink is alsa_input/alsa_output
and there is no input devices/output devices listed in the gnome
sound-setting.

Under this situation, if we connect a bluetooth headset, the gnome
sound-setting will list bluez input/output devices, but they are not
active devices by default. This looks very weird that sound-setting
lists only one input device and one output device, but they are not
active. To change this situation, we add an argument, the policy is
if a new source/sink is connected and current default source/sink's
active_port is AVAILABLE_NO, we let the new added one switch to
default one.

BugLink: http://bugs.launchpad.net/bugs/1369476
Signed-off-by: Hui Wang <hui.wang@canonical.com>
This commit is contained in:
Hui Wang 2014-09-22 11:50:49 +08:00 • committed by David Henningsson
parent 84ce398ea8
commit 1ff4f1b67a
1 changed files with 31 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

32
src/modules/module-switch-on-connect.c
View file

@ -38,11 +38,15 @@
#include "module-switch-on-connect-symdef.h"
PA_MODULE_AUTHOR("Michael Terry");
PA_MODULE_DESCRIPTION("When a sink/source is added, switch to it");
PA_MODULE_DESCRIPTION("When a sink/source is added, switch to it or conditionally switch to it");
PA_MODULE_VERSION(PACKAGE_VERSION);
PA_MODULE_LOAD_ONCE(true);
PA_MODULE_USAGE(
"only_from_unavailable=<boolean, only switch from unavailable ports> "
);
static const char* const valid_modargs[] = {
"only_from_unavailable",
NULL,
};
@ -50,6 +54,7 @@ struct userdata {
pa_hook_slot
*sink_put_slot,
*source_put_slot;
bool only_from_unavailable;
};
static pa_hook_result_t sink_put_hook_callback(pa_core *c, pa_sink *sink, void* userdata) {
@ -57,9 +62,11 @@ static pa_hook_result_t sink_put_hook_callback(pa_core *c, pa_sink *sink, void*
uint32_t idx;
pa_sink *def;
const char *s;
struct userdata *u = userdata;
pa_assert(c);
pa_assert(sink);
pa_assert(userdata);
/* Don't want to run during startup or shutdown */
if (c->state != PA_CORE_RUNNING)
@ -77,6 +84,10 @@ static pa_hook_result_t sink_put_hook_callback(pa_core *c, pa_sink *sink, void*
if (def == sink)
return PA_HOOK_OK;
if (u->only_from_unavailable)
if (!def->active_port || def->active_port->available != PA_AVAILABLE_NO)
return PA_HOOK_OK;
/* Actually do the switch to the new sink */
pa_namereg_set_default_sink(c, sink);
@ -106,9 +117,11 @@ static pa_hook_result_t source_put_hook_callback(pa_core *c, pa_source *source,
uint32_t idx;
pa_source *def;
const char *s;
struct userdata *u = userdata;
pa_assert(c);
pa_assert(source);
pa_assert(userdata);
/* Don't want to run during startup or shutdown */
if (c->state != PA_CORE_RUNNING)
@ -130,6 +143,10 @@ static pa_hook_result_t source_put_hook_callback(pa_core *c, pa_source *source,
if (def == source)
return PA_HOOK_OK;
if (u->only_from_unavailable)
if (!def->active_port || def->active_port->available != PA_AVAILABLE_NO)
return PA_HOOK_OK;
/* Actually do the switch to the new source */
pa_namereg_set_default_source(c, source);
@ -171,8 +188,21 @@ int pa__init(pa_module*m) {
u->sink_put_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_PUT], PA_HOOK_LATE+30, (pa_hook_cb_t) sink_put_hook_callback, u);
u->source_put_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_PUT], PA_HOOK_LATE+20, (pa_hook_cb_t) source_put_hook_callback, u);
if (pa_modargs_get_value_boolean(ma, "only_from_unavailable", &u->only_from_unavailable) < 0) {
pa_log("Failed to get a boolean value for only_from_unavailable.");
goto fail;
}
pa_modargs_free(ma);
return 0;
fail:
if (ma)
pa_modargs_free(ma);
pa__done(m);
return -1;
}
void pa__done(pa_module*m) {