From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
This uses MediaTransport1 to track the Volume changes.
---
tools/mpris-player.c | 187 ++++++++++++++++++++++++++++++++++++++++++++++++---
1 file changed, 178 insertions(+), 9 deletions(-)
diff --git a/tools/mpris-player.c b/tools/mpris-player.c
index c8377ec..5903ca1 100644
--- a/tools/mpris-player.c
+++ b/tools/mpris-player.c
@@ -43,6 +43,7 @@
#define BLUEZ_ADAPTER_INTERFACE "org.bluez.Adapter1"
#define BLUEZ_MEDIA_INTERFACE "org.bluez.Media1"
#define BLUEZ_MEDIA_PLAYER_INTERFACE "org.bluez.MediaPlayer1"
+#define BLUEZ_MEDIA_TRANSPORT_INTERFACE "org.bluez.MediaTransport1"
#define MPRIS_BUS_NAME "org.mpris.MediaPlayer2."
#define MPRIS_INTERFACE "org.mpris.MediaPlayer2"
#define MPRIS_PLAYER_INTERFACE "org.mpris.MediaPlayer2.Player"
@@ -55,6 +56,7 @@ static DBusConnection *sys = NULL;
static DBusConnection *session = NULL;
static GDBusClient *client = NULL;
static GSList *players = NULL;
+static GSList *transports = NULL;
struct player {
char *name;
@@ -62,6 +64,7 @@ struct player {
DBusConnection *conn;
GDBusProxy *proxy;
GDBusProxy *device;
+ GDBusProxy *transport;
};
typedef int (* parse_metadata_func) (DBusMessageIter *iter, const char *key,
@@ -793,6 +796,9 @@ static void player_free(void *data)
g_dbus_proxy_unref(player->device);
g_dbus_proxy_unref(player->proxy);
+ if (player->transport)
+ g_dbus_proxy_unref(player->transport);
+
g_free(player->name);
g_free(player->bus_name);
g_free(player);
@@ -1277,6 +1283,30 @@ static gboolean get_enable(const GDBusPropertyTable *property,
}
+static gboolean get_volume(const GDBusPropertyTable *property,
+ DBusMessageIter *iter, void *data)
+{
+ struct player *player = data;
+ double value = 0.0;
+ uint16_t volume;
+ DBusMessageIter var;
+
+ if (player->transport == NULL)
+ goto done;
+
+ if (!g_dbus_proxy_get_property(player->transport, "Volume", &var))
+ goto done;
+
+ dbus_message_iter_get_basic(&var, &volume);
+
+ value = (double) volume / 127;
+
+done:
+ dbus_message_iter_append_basic(iter, DBUS_TYPE_DOUBLE, &value);
+
+ return TRUE;
+}
+
static const GDBusMethodTable player_methods[] = {
{ GDBUS_ASYNC_METHOD("PlayPause", NULL, NULL, player_toggle) },
{ GDBUS_ASYNC_METHOD("Play", NULL, NULL, player_play) },
@@ -1301,7 +1331,7 @@ static const GDBusPropertyTable player_properties[] = {
{ "Shuffle", "b", get_shuffle, set_shuffle, shuffle_exists },
{ "Position", "x", get_position, NULL, position_exists },
{ "Metadata", "a{sv}", get_track, NULL, track_exists },
- { "Volume", "d", get_double, NULL, NULL },
+ { "Volume", "d", get_volume, NULL, NULL },
{ "CanGoNext", "b", get_enable, NULL, NULL },
{ "CanGoPrevious", "b", get_enable, NULL, NULL },
{ "CanPlay", "b", get_enable, NULL, NULL },
@@ -1355,12 +1385,33 @@ static char *mpris_busname(char *name)
g_strcanon(name, A_Z a_z _0_9, '_'), NULL);
}
+static GDBusProxy *find_transport_by_path(const char *path)
+{
+ GSList *l;
+
+ for (l = transports; l; l = l->next) {
+ GDBusProxy *transport = l->data;
+ DBusMessageIter iter;
+ const char *value;
+
+ if (!g_dbus_proxy_get_property(transport, "Device", &iter))
+ continue;
+
+ dbus_message_iter_get_basic(&iter, &value);
+
+ if (strcmp(path, value) == 0)
+ return transport;
+ }
+
+ return NULL;
+}
+
static void register_player(GDBusProxy *proxy)
{
struct player *player;
DBusMessageIter iter;
const char *path, *name;
- GDBusProxy *device;
+ GDBusProxy *device, *transport;
if (!g_dbus_proxy_get_property(proxy, "Device", &iter))
return;
@@ -1416,6 +1467,10 @@ static void register_player(GDBusProxy *proxy)
goto fail;
}
+ transport = find_transport_by_path(path);
+ if (transport)
+ player->transport = g_dbus_proxy_ref(transport);
+
return;
fail:
@@ -1423,6 +1478,47 @@ fail:
player_free(player);
}
+static struct player *find_player_by_device(const char *device)
+{
+ GSList *l;
+
+ for (l = players; l; l = l->next) {
+ struct player *player = l->data;
+ const char *path = g_dbus_proxy_get_path(player->device);
+
+ if (g_strcmp0(device, path) == 0)
+ return player;
+ }
+
+ return NULL;
+}
+
+static void register_transport(GDBusProxy *proxy)
+{
+ struct player *player;
+ DBusMessageIter iter;
+ const char *path;
+
+ if (g_slist_find(transports, proxy) != NULL)
+ return;
+
+ if (!g_dbus_proxy_get_property(proxy, "Volume", &iter))
+ return;
+
+ if (!g_dbus_proxy_get_property(proxy, "Device", &iter))
+ return;
+
+ dbus_message_iter_get_basic(&iter, &path);
+
+ transports = g_slist_append(transports, proxy);
+
+ player = find_player_by_device(path);
+ if (player == NULL || player->transport != NULL)
+ return;
+
+ player->transport = g_dbus_proxy_ref(proxy);
+}
+
static void proxy_added(GDBusProxy *proxy, void *user_data)
{
const char *interface;
@@ -1441,6 +1537,10 @@ static void proxy_added(GDBusProxy *proxy, void *user_data)
printf("Bluetooth Player %s found\n",
g_dbus_proxy_get_path(proxy));
register_player(proxy);
+ } else if (!strcmp(interface, BLUEZ_MEDIA_TRANSPORT_INTERFACE)) {
+ printf("Bluetooth Transport %s found\n",
+ g_dbus_proxy_get_path(proxy));
+ register_transport(proxy);
}
}
@@ -1466,6 +1566,37 @@ static struct player *find_player(GDBusProxy *proxy)
return NULL;
}
+static struct player *find_player_by_transport(GDBusProxy *proxy)
+{
+ GSList *l;
+
+ for (l = players; l; l = l->next) {
+ struct player *player = l->data;
+
+ if (player->transport == proxy)
+ return player;
+ }
+
+ return NULL;
+}
+
+static void unregister_transport(GDBusProxy *proxy)
+{
+ struct player *player;
+
+ if (g_slist_find(transports, proxy) == NULL)
+ return;
+
+ transports = g_slist_remove(transports, proxy);
+
+ player = find_player_by_transport(proxy);
+ if (player == NULL)
+ return;
+
+ g_dbus_proxy_unref(player->transport);
+ player->transport = NULL;
+}
+
static void proxy_removed(GDBusProxy *proxy, void *user_data)
{
const char *interface;
@@ -1491,6 +1622,10 @@ static void proxy_removed(GDBusProxy *proxy, void *user_data)
printf("Bluetooth Player %s removed\n",
g_dbus_proxy_get_path(proxy));
unregister_player(player);
+ } else if (strcmp(interface, BLUEZ_MEDIA_TRANSPORT_INTERFACE) == 0) {
+ printf("Bluetooth Transport %s removed\n",
+ g_dbus_proxy_get_path(proxy));
+ unregister_transport(proxy);
}
}
@@ -1510,16 +1645,11 @@ static const char *property_to_mpris(const char *property)
return NULL;
}
-static void property_changed(GDBusProxy *proxy, const char *name,
+static void player_property_changed(GDBusProxy *proxy, const char *name,
DBusMessageIter *iter, void *user_data)
{
struct player *player;
- const char *interface, *property;
-
- interface = g_dbus_proxy_get_interface(proxy);
-
- if (strcmp(interface, BLUEZ_MEDIA_PLAYER_INTERFACE) != 0)
- return;
+ const char *property;
player = find_player(proxy);
if (player == NULL)
@@ -1534,6 +1664,45 @@ static void property_changed(GDBusProxy *proxy, const char *name,
property);
}
+static void transport_property_changed(GDBusProxy *proxy, const char *name,
+ DBusMessageIter *iter, void *user_data)
+{
+ struct player *player;
+ DBusMessageIter var;
+ const char *path;
+
+ if (strcasecmp(name, "Volume") != 0)
+ return;
+
+ if (!g_dbus_proxy_get_property(proxy, "Device", &var))
+ return;
+
+ dbus_message_iter_get_basic(&var, &path);
+
+ player = find_player_by_device(path);
+ if (player == NULL)
+ return;
+
+ g_dbus_emit_property_changed(player->conn, MPRIS_PLAYER_PATH,
+ MPRIS_PLAYER_INTERFACE,
+ name);
+}
+
+static void property_changed(GDBusProxy *proxy, const char *name,
+ DBusMessageIter *iter, void *user_data)
+{
+ const char *interface;
+
+ interface = g_dbus_proxy_get_interface(proxy);
+
+ if (strcmp(interface, BLUEZ_MEDIA_PLAYER_INTERFACE) == 0)
+ return player_property_changed(proxy, name, iter, user_data);
+
+ if (strcmp(interface, BLUEZ_MEDIA_TRANSPORT_INTERFACE) == 0)
+ return transport_property_changed(proxy, name, iter,
+ user_data);
+}
+
int main(int argc, char *argv[])
{
guint owner_watch, properties_watch;
--
1.8.1
--
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