diff --git a/src/client/introspect.c b/src/client/introspect.c
index af61564ce..ab723f890 100644
--- a/src/client/introspect.c
+++ b/src/client/introspect.c
@@ -339,6 +339,20 @@ source_output_fill_info (PinosSourceOutputInfo *info, GDBusProxy *proxy)
   } else {
     info->possible_formats = NULL;
   }
+  if ((variant = g_dbus_proxy_get_cached_property (G_DBUS_PROXY (proxy), "State"))) {
+    info->state = g_variant_get_uint32 (variant);
+    g_variant_unref (variant);
+  } else {
+    info->state = PINOS_SOURCE_OUTPUT_STATE_ERROR;
+  }
+  if ((variant = g_dbus_proxy_get_cached_property (G_DBUS_PROXY (proxy), "Format"))) {
+    gsize len;
+    gchar *format = g_variant_dup_string (variant, &len);
+    info->format = g_bytes_new_take (format, len + 1);
+    g_variant_unref (variant);
+  } else {
+    info->format = NULL;
+  }
   info->properties = pinos_properties_from_variant (
       g_dbus_proxy_get_cached_property (G_DBUS_PROXY (proxy), "Properties"));
 
diff --git a/src/client/introspect.h b/src/client/introspect.h
index 3409d5cf3..bec90201f 100644
--- a/src/client/introspect.h
+++ b/src/client/introspect.h
@@ -164,12 +164,30 @@ void            pinos_context_get_source_info_by_id (PinosContext *context,
                                                      GCancellable *cancellable,
                                                      gpointer user_data);
 
+/**
+ * PinosSourceState:
+ * @PINOS_SOURCE_OUTPUT_STATE_ERROR: the source output is in error
+ * @PINOS_SOURCE_OUTPUT_STATE_IDLE: the source output is idle
+ * @PINOS_SOURCE_OUTPUT_STATE_STARTING: the source output is starting
+ * @PINOS_SOURCE_OUTPUT_STATE_STREAMING: the source output is streaming
+ *
+ * The different source output states
+ */
+typedef enum {
+  PINOS_SOURCE_OUTPUT_STATE_ERROR = -1,
+  PINOS_SOURCE_OUTPUT_STATE_IDLE = 0,
+  PINOS_SOURCE_OUTPUT_STATE_STARTING = 1,
+  PINOS_SOURCE_OUTPUT_STATE_STREAMING = 2,
+} PinosSourceOutputState;
+
 /**
  * PinosSourceOutputInfo:
  * @id: generic id of the output
  * @client_path: the owner client
  * @source_path: the source path
  * @possible_formats: the possible formats
+ * @state: the state
+ * @format: when streaming, the current format
  * @properties: the properties of the source
  *
  * The source information. Extra information can be added in later
@@ -180,6 +198,8 @@ typedef struct {
   const char *client_path;
   const char *source_path;
   GBytes *possible_formats;
+  PinosSourceOutputState state;
+  GBytes *format;
   PinosProperties *properties;
 } PinosSourceOutputInfo;
 
diff --git a/src/dbus/org.pinos.xml b/src/dbus/org.pinos.xml
index f6b4d4db8..783341760 100644
--- a/src/dbus/org.pinos.xml
+++ b/src/dbus/org.pinos.xml
@@ -93,12 +93,12 @@
     <!-- Properties: extra source properties -->
     <property name='Properties' type='a{sv}' access='read' />
     <!-- state: state of the source
-          0 = the source is in error
+          -1 = the source is in error
+          0 = the source is suspended, this means the device is closed
           1 = the source is initializing
-          2 = the source is suspended, this means the device is closed
-          3 = the source is idle, this means the device is opened but
+          2 = the source is idle, this means the device is opened but
               no source-output is consuming the data
-          4 = the source is running
+          3 = the source is running
     -->
     <property name='State' type='u' access='read' />
     <!-- PossibleFormats:
@@ -128,6 +128,17 @@
 
     <!-- Properties: extra source output properties -->
     <property name='Properties' type='a{sv}' access='read' />
+
+    <!-- state: state of the source output
+          -1 = the source output is in error
+          0 = the source output is idle
+          1 = the source output is starting
+          2 = the source output is streaming
+    -->
+    <property name='State' type='u' access='read' />
+    <!-- Format: the current streaming format -->
+    <property name='Format' type='s' access='read' />
+
     <!-- Start:
          @requested_format: requested formats
          @fd: output file descriptor
diff --git a/src/server/source-output.c b/src/server/source-output.c
index 7ebcfde57..e4b67aa8b 100644
--- a/src/server/source-output.c
+++ b/src/server/source-output.c
@@ -41,6 +41,7 @@ struct _PinosSourceOutputPrivate
   GBytes *possible_formats;
   PinosProperties *properties;
   GBytes *requested_format;
+  PinosSourceOutputState state;
   GBytes *format;
 
   GSocket *socket;
@@ -63,6 +64,7 @@ enum
   PROP_REQUESTED_FORMAT,
   PROP_FORMAT,
   PROP_SOCKET,
+  PROP_STATE,
 };
 
 enum
@@ -119,6 +121,10 @@ pinos_source_output_get_property (GObject    *_object,
       g_value_set_object (value, priv->socket);
       break;
 
+    case PROP_STATE:
+      g_value_set_uint (value, priv->state);
+      break;
+
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (output, prop_id, pspec);
       break;
@@ -192,6 +198,8 @@ handle_start (PinosSourceOutput1     *interface,
   GUnixFDList *fdlist;
   gint fd[2];
 
+  priv->state = PINOS_SOURCE_OUTPUT_STATE_STARTING;
+
   priv->requested_format = g_bytes_new (arg_requested_format, strlen (arg_requested_format) + 1);
 
   socketpair (AF_UNIX, SOCK_STREAM, 0, fd);
@@ -201,6 +209,8 @@ handle_start (PinosSourceOutput1     *interface,
   if (priv->format == NULL)
     goto no_format;
 
+  priv->state = PINOS_SOURCE_OUTPUT_STATE_STREAMING;
+
   fdlist = g_unix_fd_list_new ();
   g_unix_fd_list_append (fdlist, fd[1], NULL);
 
@@ -210,6 +220,11 @@ handle_start (PinosSourceOutput1     *interface,
                           g_bytes_get_data (priv->format, NULL)),
            fdlist);
 
+  g_object_set (priv->iface,
+               "format", g_bytes_get_data (priv->format, NULL),
+               "state", priv->state,
+                NULL);
+
   return TRUE;
 
   /* error */
@@ -245,6 +260,10 @@ stop_transfer (PinosSourceOutput *output)
     clear_socket (output);
     g_object_notify (G_OBJECT (output), "socket");
   }
+  priv->state = PINOS_SOURCE_OUTPUT_STATE_IDLE;
+  g_object_set (priv->iface,
+               "state", priv->state,
+                NULL);
 }
 
 static gboolean
@@ -461,6 +480,9 @@ pinos_source_output_init (PinosSourceOutput * output)
   g_signal_connect (priv->iface, "handle-start", (GCallback) handle_start, output);
   g_signal_connect (priv->iface, "handle-stop", (GCallback) handle_stop, output);
   g_signal_connect (priv->iface, "handle-remove", (GCallback) handle_remove, output);
+
+  priv->state = PINOS_SOURCE_OUTPUT_STATE_IDLE;
+  g_object_set (priv->iface, "state", priv->state, NULL);
 }
 
 void
diff --git a/src/tests/test-subscribe.c b/src/tests/test-subscribe.c
index 7e915dd43..0f6721f80 100644
--- a/src/tests/test-subscribe.c
+++ b/src/tests/test-subscribe.c
@@ -34,12 +34,12 @@ print_field (GQuark field, const GValue * value, gpointer user_data)
 }
 
 static void
-print_formats (GBytes *formats)
+print_formats (const gchar *name, GBytes *formats)
 {
   GstCaps *caps = gst_caps_from_string (g_bytes_get_data (formats, NULL));
   guint i;
 
-  g_print ("\tformats:\n");
+  g_print ("\t%s:\n", name);
 
   if (gst_caps_is_any (caps)) {
     g_print ("\t\tANY\n");
@@ -120,7 +120,7 @@ dump_source_info (PinosContext *c, const PinosSourceInfo *info, gpointer userdat
   g_print ("\tsource-path: \"%s\"\n", info->source_path);
   g_print ("\tname: \"%s\"\n", info->name);
   g_print ("\tstate: %d\n", info->state);
-  print_formats (info->formats);
+  print_formats ("formats", info->formats);
   print_properties (info->properties);
 
   return TRUE;
@@ -135,7 +135,9 @@ dump_source_output_info (PinosContext *c, const PinosSourceOutputInfo *info, gpo
   g_print ("\tid: %p\n", info->id);
   g_print ("\tclient-path: \"%s\"\n", info->client_path);
   g_print ("\tsource-path: \"%s\"\n", info->source_path);
-  print_formats (info->possible_formats);
+  print_formats ("possible-formats", info->possible_formats);
+  g_print ("\tstate: \"%d\"\n", info->state);
+  print_formats ("format", info->format);
   print_properties (info->properties);
 
   return TRUE;