element: Enforce that elements created by gst_element_factory_create/make() are floating

[platform/upstream/gstreamer.git] / gst / gstmessage.c

diff --git a/gst/gstmessage.c b/gst/gstmessage.c
index 25c47e1..f72bd62 100644 (file)
--- a/gst/gstmessage.c
+++ b/gst/gstmessage.c
@@ -107,6 +107,7 @@ static GstMessageQuarks message_quarks[] = {
   {GST_MESSAGE_HAVE_CONTEXT, "have-context", 0},
   {GST_MESSAGE_DEVICE_ADDED, "device-added", 0},
   {GST_MESSAGE_DEVICE_REMOVED, "device-removed", 0},
+  {GST_MESSAGE_DEVICE_CHANGED, "device-changed", 0},
   {GST_MESSAGE_PROPERTY_NOTIFY, "property-notify", 0},
   {GST_MESSAGE_STREAM_COLLECTION, "stream-collection", 0},
   {GST_MESSAGE_STREAMS_SELECTED, "streams-selected", 0},
@@ -402,7 +403,7 @@ gst_message_new_eos (GstObject * src)
  * @src: (transfer none) (allow-none): The object originating the message.
  * @error: (transfer none): The GError for this message.
  * @debug: A debugging string.
- * @details: (transfer full): (allow-none): A GstStructure with details
+ * @details: (transfer full) (allow-none): A GstStructure with details
  *
  * Create a new error message. The message will copy @error and
  * @debug. This message is posted by element when a fatal event
@@ -496,7 +497,7 @@ gst_message_parse_error_details (GstMessage * message,
  * @src: (transfer none) (allow-none): The object originating the message.
  * @error: (transfer none): The GError for this message.
  * @debug: A debugging string.
- * @details: (transfer full): (allow-none): A GstStructure with details
+ * @details: (transfer full) (allow-none): A GstStructure with details
  *
  * Create a new warning message. The message will make copies of @error and
  * @debug.
@@ -586,7 +587,7 @@ gst_message_parse_warning_details (GstMessage * message,
  * @src: (transfer none) (allow-none): The object originating the message.
  * @error: (transfer none): The GError for this message.
  * @debug: A debugging string.
- * @details: (transfer full): (allow-none): A GstStructure with details
+ * @details: (transfer full) (allow-none): A GstStructure with details
  *
  * Create a new info message. The message will make copies of @error and
  * @debug.
@@ -2691,6 +2692,69 @@ gst_message_parse_device_removed (GstMessage * message, GstDevice ** device)
 }
 
 /**
+ * gst_message_new_device_changed:
+ * @src: The #GstObject that created the message
+ * @device: (transfer none): The newly created device representing @replaced_device
+ *         with its new configuration.
+ *
+ * Creates a new device-changed message. The device-changed message is produced
+ * by #GstDeviceProvider or a #GstDeviceMonitor. They announce that a device
+ * properties has changed and @device represent the new modified version of @changed_device.
+ *
+ * Returns: a newly allocated #GstMessage
+ *
+ * Since: 1.16
+ */
+GstMessage *
+gst_message_new_device_changed (GstObject * src, GstDevice * device,
+    GstDevice * changed_device)
+{
+  GstMessage *message;
+  GstStructure *structure;
+
+  g_return_val_if_fail (device != NULL, NULL);
+  g_return_val_if_fail (GST_IS_DEVICE (device), NULL);
+
+  structure = gst_structure_new_id (GST_QUARK (MESSAGE_DEVICE_CHANGED),
+      GST_QUARK (DEVICE), GST_TYPE_DEVICE, device,
+      GST_QUARK (DEVICE_CHANGED), GST_TYPE_DEVICE, changed_device, NULL);
+  message = gst_message_new_custom (GST_MESSAGE_DEVICE_CHANGED, src, structure);
+
+  return message;
+}
+
+/**
+ * gst_message_parse_device_changed:
+ * @message: a #GstMessage of type %GST_MESSAGE_DEVICE_CHANGED
+ * @device: (out) (allow-none) (transfer full): A location where to store a
+ *  pointer to the updated version of the #GstDevice, or %NULL
+ * @changed_device: (out) (allow-none) (transfer full): A location where to store a
+ *  pointer to the old version of the #GstDevice, or %NULL
+ *
+ * Parses a device-changed message. The device-changed message is produced by
+ * #GstDeviceProvider or a #GstDeviceMonitor. It announces the
+ * disappearance of monitored devices. * It announce that a device properties has
+ * changed and @device represents the new modified version of @changed_device.
+ *
+ * Since: 1.16
+ */
+void
+gst_message_parse_device_changed (GstMessage * message, GstDevice ** device,
+    GstDevice ** changed_device)
+{
+  g_return_if_fail (GST_IS_MESSAGE (message));
+  g_return_if_fail (GST_MESSAGE_TYPE (message) == GST_MESSAGE_DEVICE_CHANGED);
+
+  if (device)
+    gst_structure_id_get (GST_MESSAGE_STRUCTURE (message),
+        GST_QUARK (DEVICE), GST_TYPE_DEVICE, device, NULL);
+
+  if (changed_device)
+    gst_structure_id_get (GST_MESSAGE_STRUCTURE (message),
+        GST_QUARK (DEVICE_CHANGED), GST_TYPE_DEVICE, changed_device, NULL);
+}
+
+/**
  * gst_message_new_property_notify:
  * @src: The #GstObject whose property changed (may or may not be a #GstElement)
  * @property_name: name of the property that changed