pulseaudio/src/modules/module-role-cork.c

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/***
This file is part of PulseAudio.
Copyright 2009 Lennart Poettering
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, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
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#include <pulse/xmalloc.h>
#include <pulsecore/macro.h>
#include <pulsecore/hashmap.h>
#include <pulsecore/hook-list.h>
#include <pulsecore/core.h>
#include <pulsecore/core-util.h>
#include <pulsecore/sink-input.h>
#include <pulsecore/modargs.h>
#include "module-role-cork-symdef.h"
PA_MODULE_AUTHOR("Lennart Poettering");
PA_MODULE_DESCRIPTION("Mute & cork streams with certain roles while others exist");
PA_MODULE_VERSION(PACKAGE_VERSION);
PA_MODULE_LOAD_ONCE(true);
PA_MODULE_USAGE(
"trigger_roles=<Comma separated list of roles which will trigger a cork> "
"cork_roles=<Comma separated list of roles which will be corked> "
"global=<Should we operate globally or only inside the same device?>");
static const char* const valid_modargs[] = {
"trigger_roles",
"cork_roles",
"global",
NULL
};
struct userdata {
pa_core *core;
pa_hashmap *cork_state;
pa_idxset *trigger_roles;
pa_idxset *cork_roles;
bool global:1;
pa_hook_slot
*sink_input_put_slot,
*sink_input_unlink_slot,
*sink_input_move_start_slot,
*sink_input_move_finish_slot;
};
static bool shall_cork(struct userdata *u, pa_sink *s, pa_sink_input *ignore) {
pa_sink_input *j;
uint32_t idx, role_idx;
const char *trigger_role;
pa_assert(u);
pa_sink_assert_ref(s);
for (j = PA_SINK_INPUT(pa_idxset_first(s->inputs, &idx)); j; j = PA_SINK_INPUT(pa_idxset_next(s->inputs, &idx))) {
const char *role;
if (j == ignore)
continue;
if (!(role = pa_proplist_gets(j->proplist, PA_PROP_MEDIA_ROLE)))
continue;
PA_IDXSET_FOREACH(trigger_role, u->trigger_roles, role_idx) {
if (pa_streq(role, trigger_role)) {
pa_log_debug("Found a '%s' stream that will trigger the auto-cork.", trigger_role);
return true;
}
}
}
return false;
}
static inline void apply_cork_to_sink(struct userdata *u, pa_sink *s, pa_sink_input *ignore, bool cork) {
pa_sink_input *j;
uint32_t idx, role_idx;
const char *cork_role;
bool trigger = false;
pa_assert(u);
pa_sink_assert_ref(s);
for (j = PA_SINK_INPUT(pa_idxset_first(s->inputs, &idx)); j; j = PA_SINK_INPUT(pa_idxset_next(s->inputs, &idx))) {
bool corked, corked_here;
const char *role;
if (j == ignore)
continue;
if (!(role = pa_proplist_gets(j->proplist, PA_PROP_MEDIA_ROLE)))
continue;
PA_IDXSET_FOREACH(cork_role, u->cork_roles, role_idx) {
if ((trigger = pa_streq(role, cork_role)))
break;
}
if (!trigger)
continue;
corked = (pa_sink_input_get_state(j) == PA_SINK_INPUT_CORKED);
corked_here = !!pa_hashmap_get(u->cork_state, j);
if (cork && !corked && !j->muted) {
pa_log_debug("Found a '%s' stream that should be corked/muted.", cork_role);
if (!corked_here)
pa_hashmap_put(u->cork_state, j, PA_INT_TO_PTR(1));
pa_sink_input_set_mute(j, true, false);
pa_sink_input_send_event(j, PA_STREAM_EVENT_REQUEST_CORK, NULL);
} else if (!cork) {
pa_hashmap_remove(u->cork_state, j);
if (corked_here && (corked || j->muted)) {
pa_log_debug("Found a '%s' stream that should be uncorked/unmuted.", cork_role);
if (j->muted)
pa_sink_input_set_mute(j, false, false);
if (corked)
pa_sink_input_send_event(j, PA_STREAM_EVENT_REQUEST_UNCORK, NULL);
}
}
}
}
static void apply_cork(struct userdata *u, pa_sink *s, pa_sink_input *ignore, bool cork) {
pa_assert(u);
if (u->global) {
uint32_t idx;
PA_IDXSET_FOREACH(s, u->core->sinks, idx)
apply_cork_to_sink(u, s, ignore, cork);
} else
apply_cork_to_sink(u, s, ignore, cork);
}
static pa_hook_result_t process(struct userdata *u, pa_sink_input *i, bool create) {
bool cork = false;
const char *role;
pa_assert(u);
pa_sink_input_assert_ref(i);
if (!create)
pa_hashmap_remove(u->cork_state, i);
if (!(role = pa_proplist_gets(i->proplist, PA_PROP_MEDIA_ROLE)))
return PA_HOOK_OK;
if (!i->sink)
return PA_HOOK_OK;
cork = shall_cork(u, i->sink, create ? NULL : i);
apply_cork(u, i->sink, create ? NULL : i, cork);
return PA_HOOK_OK;
}
static pa_hook_result_t sink_input_put_cb(pa_core *core, pa_sink_input *i, struct userdata *u) {
pa_core_assert_ref(core);
pa_sink_input_assert_ref(i);
return process(u, i, true);
}
static pa_hook_result_t sink_input_unlink_cb(pa_core *core, pa_sink_input *i, struct userdata *u) {
pa_sink_input_assert_ref(i);
return process(u, i, false);
}
static pa_hook_result_t sink_input_move_start_cb(pa_core *core, pa_sink_input *i, struct userdata *u) {
pa_core_assert_ref(core);
pa_sink_input_assert_ref(i);
return process(u, i, false);
}
static pa_hook_result_t sink_input_move_finish_cb(pa_core *core, pa_sink_input *i, struct userdata *u) {
pa_core_assert_ref(core);
pa_sink_input_assert_ref(i);
return process(u, i, true);
}
int pa__init(pa_module *m) {
pa_modargs *ma = NULL;
struct userdata *u;
const char *roles;
bool global = false;
pa_assert(m);
if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
pa_log("Failed to parse module arguments");
goto fail;
}
m->userdata = u = pa_xnew(struct userdata, 1);
u->core = m->core;
u->cork_state = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
u->trigger_roles = pa_idxset_new(NULL, NULL);
roles = pa_modargs_get_value(ma, "trigger_roles", NULL);
if (roles) {
const char *split_state = NULL;
char *n = NULL;
while ((n = pa_split(roles, ",", &split_state))) {
if (n[0] != '\0')
pa_idxset_put(u->trigger_roles, n, NULL);
else
pa_xfree(n);
}
}
if (pa_idxset_isempty(u->trigger_roles)) {
pa_log_debug("Using role 'phone' as trigger role.");
pa_idxset_put(u->trigger_roles, pa_xstrdup("phone"), NULL);
}
u->cork_roles = pa_idxset_new(NULL, NULL);
roles = pa_modargs_get_value(ma, "cork_roles", NULL);
if (roles) {
const char *split_state = NULL;
char *n = NULL;
while ((n = pa_split(roles, ",", &split_state))) {
if (n[0] != '\0')
pa_idxset_put(u->cork_roles, n, NULL);
else
pa_xfree(n);
}
}
if (pa_idxset_isempty(u->cork_roles)) {
pa_log_debug("Using roles 'music' and 'video' as cork roles.");
pa_idxset_put(u->cork_roles, pa_xstrdup("music"), NULL);
pa_idxset_put(u->cork_roles, pa_xstrdup("video"), NULL);
}
if (pa_modargs_get_value_boolean(ma, "global", &global) < 0) {
pa_log("Invalid boolean parameter: global");
goto fail;
}
u->global = global;
u->sink_input_put_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_PUT], PA_HOOK_LATE, (pa_hook_cb_t) sink_input_put_cb, u);
u->sink_input_unlink_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_UNLINK], PA_HOOK_LATE, (pa_hook_cb_t) sink_input_unlink_cb, u);
u->sink_input_move_start_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_MOVE_START], PA_HOOK_LATE, (pa_hook_cb_t) sink_input_move_start_cb, u);
u->sink_input_move_finish_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_MOVE_FINISH], PA_HOOK_LATE, (pa_hook_cb_t) sink_input_move_finish_cb, u);
pa_modargs_free(ma);
return 0;
fail:
pa__done(m);
if (ma)
pa_modargs_free(ma);
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return -1;
}
void pa__done(pa_module *m) {
struct userdata* u;
pa_assert(m);
if (!(u = m->userdata))
return;
if (u->trigger_roles)
pa_idxset_free(u->trigger_roles, pa_xfree);
if (u->cork_roles)
pa_idxset_free(u->cork_roles, pa_xfree);
if (u->sink_input_put_slot)
pa_hook_slot_free(u->sink_input_put_slot);
if (u->sink_input_unlink_slot)
pa_hook_slot_free(u->sink_input_unlink_slot);
if (u->sink_input_move_start_slot)
pa_hook_slot_free(u->sink_input_move_start_slot);
if (u->sink_input_move_finish_slot)
pa_hook_slot_free(u->sink_input_move_finish_slot);
if (u->cork_state)
pa_hashmap_free(u->cork_state);
pa_xfree(u);
}