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/***
This file is part of PulseAudio.
Copyright 2006 Lennart Poettering
Copyright 2009 Canonical Ltd
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2.1 of the License,
or (at your option) any later version.
PulseAudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <pulse/xmalloc.h>
#include <pulsecore/core.h>
#include <pulsecore/core-struct.h>
#include <pulsecore/sink-input.h>
#include <pulsecore/source-output.h>
#include <pulsecore/source.h>
#include <pulsecore/modargs.h>
#include <pulsecore/log.h>
#include <pulsecore/namereg.h>
#include <pulsecore/core-util.h>
#include "module-switch-on-connect-symdef.h"
PA_MODULE_AUTHOR("Michael Terry");
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,
};
struct userdata {
bool only_from_unavailable;
};
static pa_hook_result_t sink_put_hook_callback(pa_core *c, pa_sink *sink, void* userdata) {
pa_sink_input *i;
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)
return PA_HOOK_OK;
/* Don't switch to any internal devices */
if ((s = pa_proplist_gets(sink->proplist, PA_PROP_DEVICE_BUS))) {
if (pa_streq(s, "pci"))
return PA_HOOK_OK;
else if (pa_streq(s, "isa"))
return PA_HOOK_OK;
}
def = pa_namereg_get_default_sink(c);
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);
/* Now move all old inputs over */
if (pa_idxset_size(def->inputs) <= 0) {
pa_log_debug("No sink inputs to move away.");
return PA_HOOK_OK;
}
PA_IDXSET_FOREACH(i, def->inputs, idx) {
if (i->save_sink || !PA_SINK_INPUT_IS_LINKED(i->state))
continue;
if (pa_sink_input_move_to(i, sink, false) < 0)
pa_log_info("Failed to move sink input %u \"%s\" to %s.", i->index,
pa_strnull(pa_proplist_gets(i->proplist, PA_PROP_APPLICATION_NAME)), sink->name);
else
pa_log_info("Successfully moved sink input %u \"%s\" to %s.", i->index,
pa_strnull(pa_proplist_gets(i->proplist, PA_PROP_APPLICATION_NAME)), sink->name);
}
return PA_HOOK_OK;
}
static pa_hook_result_t source_put_hook_callback(pa_core *c, pa_source *source, void* userdata) {
pa_source_output *o;
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)
return PA_HOOK_OK;
/* Don't switch to a monitoring source */
if (source->monitor_of)
return PA_HOOK_OK;
/* Don't switch to any internal devices */
if ((s = pa_proplist_gets(source->proplist, PA_PROP_DEVICE_BUS))) {
if (pa_streq(s, "pci"))
return PA_HOOK_OK;
else if (pa_streq(s, "isa"))
return PA_HOOK_OK;
}
def = pa_namereg_get_default_source(c);
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);
/* Now move all old outputs over */
if (pa_idxset_size(def->outputs) <= 0) {
pa_log_debug("No source outputs to move away.");
return PA_HOOK_OK;
}
PA_IDXSET_FOREACH(o, def->outputs, idx) {
if (o->save_source || !PA_SOURCE_OUTPUT_IS_LINKED(o->state))
continue;
if (pa_source_output_move_to(o, source, false) < 0)
pa_log_info("Failed to move source output %u \"%s\" to %s.", o->index,
pa_strnull(pa_proplist_gets(o->proplist, PA_PROP_APPLICATION_NAME)), source->name);
else
pa_log_info("Successfully moved source output %u \"%s\" to %s.", o->index,
pa_strnull(pa_proplist_gets(o->proplist, PA_PROP_APPLICATION_NAME)), source->name);
}
return PA_HOOK_OK;
}
int pa__init(pa_module*m) {
pa_modargs *ma;
struct userdata *u;
pa_assert(m);
if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
pa_log("Failed to parse module arguments");
return -1;
}
m->userdata = u = pa_xnew0(struct userdata, 1);
/* A little bit later than module-rescue-streams... */
pa_module_hook_connect(m, &m->core->hooks[PA_CORE_HOOK_SINK_PUT], PA_HOOK_LATE+30, (pa_hook_cb_t) sink_put_hook_callback, u);
pa_module_hook_connect(m, &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) {
struct userdata *u;
pa_assert(m);
if (!(u = m->userdata))
return;
pa_xfree(u);
}
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