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module-bluetooth-policy.c
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module-bluetooth-policy.c
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/***
This file is part of PulseAudio.
Copyright 2006 Lennart Poettering
Copyright 2009 Canonical Ltd
Copyright (C) 2012 Intel Corporation
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
#include <pulse/xmalloc.h>
#include <pulsecore/core.h>
#include <pulsecore/source-output.h>
#include <pulsecore/source.h>
#include <pulsecore/core-util.h>
#include "module-bluetooth-policy-symdef.h"
PA_MODULE_AUTHOR("Frédéric Dalleau");
PA_MODULE_DESCRIPTION("When an A2DP source is added, load module-loopback");
PA_MODULE_VERSION(PACKAGE_VERSION);
PA_MODULE_LOAD_ONCE(TRUE);
struct userdata {
pa_hook_slot *source_put_slot;
};
/* When a source is created, loopback it to default sink */
static pa_hook_result_t source_put_hook_callback(pa_core *c, pa_source *source, void* userdata) {
const char *s;
const char *role;
char *args;
pa_assert(c);
pa_assert(source);
/* Only consider bluetooth sinks and sources */
s = pa_proplist_gets(source->proplist, PA_PROP_DEVICE_BUS);
if (!s)
return PA_HOOK_OK;
if (!pa_streq(s, "bluetooth"))
return PA_HOOK_OK;
/* Restrict to A2DP profile (sink role) */
s = pa_proplist_gets(source->proplist, "bluetooth.protocol");
if (!s)
return PA_HOOK_OK;
if (pa_streq(s, "a2dp_source"))
role = "music";
else {
pa_log_debug("Profile %s cannot be selected for loopback", s);
return PA_HOOK_OK;
}
/* Load module-loopback */
args = pa_sprintf_malloc("source=\"%s\" source_dont_move=\"true\" sink_input_properties=\"media.role=%s\"", source->name, role);
(void) pa_module_load(c, "module-loopback", args);
pa_xfree(args);
return PA_HOOK_OK;
}
int pa__init(pa_module*m) {
struct userdata *u;
pa_assert(m);
m->userdata = u = pa_xnew(struct userdata, 1);
u->source_put_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_PUT], PA_HOOK_NORMAL, (pa_hook_cb_t) source_put_hook_callback, u);
return 0;
}
void pa__done(pa_module*m) {
struct userdata *u;
pa_assert(m);
if (!(u = m->userdata))
return;
if (u->source_put_slot)
pa_hook_slot_free(u->source_put_slot);
pa_xfree(u);
}