--- src/Makefile.am | 7 + src/modules/bluetooth/module-bluetooth-policy.c | 211 +++++++++++++++++++++++ 2 files changed, 218 insertions(+), 0 deletions(-) create mode 100644 src/modules/bluetooth/module-bluetooth-policy.c diff --git a/src/Makefile.am b/src/Makefile.am index 02635fa..6fb8c45 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -1215,6 +1215,7 @@ modlibexec_LTLIBRARIES += \ module-bluetooth-discover.la \ libbluetooth-ipc.la \ libbluetooth-sbc.la \ + module-bluetooth-policy.la \ module-bluetooth-device.la pulselibexec_PROGRAMS += \ @@ -1304,6 +1305,7 @@ SYMDEF_FILES = \ module-udev-detect-symdef.h \ module-bluetooth-proximity-symdef.h \ module-bluetooth-discover-symdef.h \ + module-bluetooth-policy-symdef.h \ module-bluetooth-device-symdef.h \ module-raop-sink-symdef.h \ module-raop-discover-symdef.h \ @@ -1902,6 +1904,11 @@ module_bluetooth_device_la_LDFLAGS = $(MODULE_LDFLAGS) module_bluetooth_device_la_LIBADD = $(MODULE_LIBADD) $(DBUS_LIBS) libbluetooth-util.la libbluetooth-ipc.la libbluetooth-sbc.la module_bluetooth_device_la_CFLAGS = $(AM_CFLAGS) $(DBUS_CFLAGS) -I$(top_srcdir)/src/modules/bluetooth/sbc +module_bluetooth_policy_la_SOURCES = modules/bluetooth/module-bluetooth-policy.c +module_bluetooth_policy_la_LDFLAGS = $(MODULE_LDFLAGS) +module_bluetooth_policy_la_LIBADD = $(MODULE_LIBADD) $(DBUS_LIBS) libbluetooth-util.la +module_bluetooth_policy_la_CFLAGS = $(AM_CFLAGS) $(DBUS_CFLAGS) + # Apple Airtunes/RAOP module_raop_sink_la_SOURCES = modules/raop/module-raop-sink.c module_raop_sink_la_LDFLAGS = $(MODULE_LDFLAGS) diff --git a/src/modules/bluetooth/module-bluetooth-policy.c b/src/modules/bluetooth/module-bluetooth-policy.c new file mode 100644 index 0000000..44b70e9 --- /dev/null +++ b/src/modules/bluetooth/module-bluetooth-policy.c @@ -0,0 +1,211 @@ +/*** + This file is part of PulseAudio. + + 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/sink.h> +#include <pulsecore/source.h> +#include <pulsecore/log.h> +#include <pulsecore/namereg.h> +#include <pulsecore/core-util.h> + +#include "module-bluetooth-policy-symdef.h" + +PA_MODULE_AUTHOR("Fr?d?ric Dalleau"); +PA_MODULE_DESCRIPTION("When a sink/source is added, load module-loopback"); +PA_MODULE_VERSION(PACKAGE_VERSION); +PA_MODULE_LOAD_ONCE(TRUE); + +static const char* const valid_modargs[] = { + NULL, +}; + +struct userdata { + pa_hook_slot + *sink_put_slot, + *source_put_slot; + pa_hashmap *hashmap; +}; + +/* When a sink is created, loopback default source (microphone) on it */ +static pa_hook_result_t sink_put_hook_callback(pa_core *c, pa_sink *sink, void* userdata) { + pa_source *defsource; + pa_sink *defsink; + struct userdata *u = userdata; + const char *s; + pa_module *m = NULL; + char *args; + + pa_assert(c); + pa_assert(sink); + + /* Don't want to run during startup or shutdown */ + if (c->state != PA_CORE_RUNNING) + return PA_HOOK_OK; + + pa_log_debug("Sink %s being created", sink->name); + + m = pa_hashmap_get(u->hashmap, sink->name); + if (m) { + pa_log_debug("Loopback already loaded for sink %s with args '%s'", sink->name, m->argument); + return PA_HOOK_OK; + } + + /* Only consider bluetooth sink and sources */ + if ((s = pa_proplist_gets(sink->proplist, PA_PROP_DEVICE_BUS))) { + if (!pa_streq(s, "bluetooth")) + return PA_HOOK_OK; + } + + /* Prevent loopback default source over default sink */ + defsink = pa_namereg_get_default_sink(c); + if (defsink == sink) { + pa_log_debug("Refusing to loopback to default sink %s", sink->name); + return PA_HOOK_OK; + } + + /* Find suitable source to loopback from */ + defsource = pa_namereg_get_default_source(c); + if (!defsource) + defsource = defsink->monitor_source; + + if (!defsource) { + pa_log_debug("Cannot find suitable source for loopback to %s", sink->name); + return PA_HOOK_OK; + } + + /* Load module-loopback with selected source */ + args = pa_sprintf_malloc("source=\"%s\" sink=\"%s\" source_dont_move=\"true\"", defsource->name, sink->name); + m = pa_module_load(c, "module-loopback", args); + + if (m) + pa_hashmap_put(u->hashmap, sink->name, m); + else + pa_log_debug("Failed to loopback sink %s with args '%s'", sink->name, args); + + pa_xfree(args); + + return PA_HOOK_OK; +} + +/* When a source is created, loopback default the source to default sink */ +static pa_hook_result_t source_put_hook_callback(pa_core *c, pa_source *source, void* userdata) { + pa_source *defsource; + pa_sink *defsink; + struct userdata *u = userdata; + const char *s; + pa_module *m = NULL; + char *args; + + pa_assert(c); + pa_assert(source); + + /* Don't want to run during startup or shutdown */ + if (c->state != PA_CORE_RUNNING) + return PA_HOOK_OK; + + pa_log_debug("Source %s being created", source->name); + + m = pa_hashmap_get(u->hashmap, source->name); + if (m) { + pa_log_debug("Loopback already loaded for source %s with args '%s'", source->name, m->argument); + return PA_HOOK_OK; + } + + /* Only consider bluetooth sink and sources */ + if ((s = pa_proplist_gets(source->proplist, PA_PROP_DEVICE_BUS))) { + if (!pa_streq(s, "bluetooth")) + return PA_HOOK_OK; + } + + /* Prevent loopback default source over default sink */ + defsource = pa_namereg_get_default_source(c); + if (defsource == source) { + pa_log_debug("Refusing to loopback from default source %s", source->name); + return PA_HOOK_OK; + } + + /* Find suitable sink to loopback to */ + defsink = pa_namereg_get_default_sink(c); + if (!defsink) { + pa_log_debug("Cannot find suitable sink for loopback from %s", source->name); + return PA_HOOK_OK; + } + + /* Load module-loopback with selected sink */ + args = pa_sprintf_malloc("source=\"%s\" sink=\"%s\" source_dont_move=\"true\"", source->name, defsink->name); + m = pa_module_load(c, "module-loopback", args); + + if (m) + pa_hashmap_put(u->hashmap, source->name, m); + else + pa_log_debug("Failed to loopback source %s with args '%s'", source->name, args); + + pa_xfree(args); + + return PA_HOOK_OK; +} + +int pa__init(pa_module*m) { + struct userdata *u; + + pa_assert(m); + + m->userdata = u = pa_xnew0(struct userdata, 1); + + /* A little bit later than module-rescue-streams... */ + 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); + u->hashmap = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func); + + return 0; +} + +void pa__done(pa_module*m) { + struct userdata *u; + + pa_assert(m); + + if (!(u = m->userdata)) + return; + + if (u->sink_put_slot) + pa_hook_slot_free(u->sink_put_slot); + if (u->source_put_slot) + pa_hook_slot_free(u->source_put_slot); + + if (u->hashmap) { + struct pa_module *mi; + + while ((mi = pa_hashmap_steal_first(u->hashmap))) { + pa_module_unload_request(mi, TRUE); + } + + pa_hashmap_free(u->hashmap, NULL, NULL); + } + + pa_xfree(u); +} -- 1.7.5.4