X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=gst%2Fgstmessage.c;h=f72bd62c61fd2dc335ba097d30665f4a6c5ab852;hb=cc6342d853f4252c5d5cf09fff9d3379ad467fbc;hp=33cf22042f527daa1e0ed45a41159a56825b5958;hpb=adf304d5af0ec43b9d3ec891c96c81da449bfc9d;p=platform%2Fupstream%2Fgstreamer.git

diff --git a/gst/gstmessage.c b/gst/gstmessage.c
index 33cf220..f72bd62c61 100644
--- 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},
@@ -217,6 +218,9 @@ _gst_message_free (GstMessage * message)
     gst_structure_set_parent_refcount (structure, NULL);
     gst_structure_free (structure);
   }
+#ifdef USE_POISONING
+  memset (message, 0xff, sizeof (GstMessageImpl));
+#endif
 
   g_slice_free1 (sizeof (GstMessageImpl), message);
 }
@@ -284,7 +288,7 @@ gst_message_init (GstMessageImpl * message, GstMessageType type,
  * handled by other message-specific functions to pass a message to the
  * app. The structure field can be %NULL.
  *
- * Returns: (transfer full): The new message.
+ * Returns: (transfer full) (nullable): The new message.
  *
  * MT safe.
  */
@@ -367,6 +371,7 @@ void
 gst_message_set_seqnum (GstMessage * message, guint32 seqnum)
 {
   g_return_if_fail (GST_IS_MESSAGE (message));
+  g_return_if_fail (seqnum != GST_SEQNUM_INVALID);
 
   GST_MESSAGE_SEQNUM (message) = seqnum;
 }
@@ -398,14 +403,14 @@ 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
  * occurred. The pipeline will probably (partially) stop. The application
  * receiving this message should stop the pipeline.
  *
- * Returns: (transfer full): the new error message.
+ * Returns: (transfer full) (nullable): the new error message.
  *
  * Since: 1.10
  */
@@ -462,7 +467,7 @@ gst_message_new_error (GstObject * src, GError * error, const gchar * debug)
 /**
  * gst_message_parse_error_details:
  * @message: The message object
- * @structure: (out): A pointer to the returned details
+ * @structure: (transfer none) (out): A pointer to the returned details
  *
  * Returns the optional details structure, may be NULL if none.
  * The returned structure must not be freed.
@@ -492,12 +497,12 @@ 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.
  *
- * Returns: (transfer full): the new warning message.
+ * Returns: (transfer full) (nullable): the new warning message.
  *
  * Since: 1.10
  */
@@ -552,7 +557,7 @@ gst_message_new_warning (GstObject * src, GError * error, const gchar * debug)
 /**
  * gst_message_parse_warning_details:
  * @message: The message object
- * @structure: (out): A pointer to the returned details structure
+ * @structure: (transfer none) (out): A pointer to the returned details structure
  *
  * Returns the optional details structure, may be NULL if none
  * The returned structure must not be freed.
@@ -582,12 +587,12 @@ 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.
  *
- * Returns: (transfer full): the new warning message.
+ * Returns: (transfer full) (nullable): the new warning message.
  *
  * Since: 1.10
  */
@@ -642,7 +647,7 @@ gst_message_new_info (GstObject * src, GError * error, const gchar * debug)
 /**
  * gst_message_parse_info_details:
  * @message: The message object
- * @structure: (out): A pointer to the returned details structure
+ * @structure: (transfer none) (out): A pointer to the returned details structure
  *
  * Returns the optional details structure, may be NULL if none
  * The returned structure must not be freed.
@@ -714,7 +719,7 @@ gst_message_new_tag (GstObject * src, GstTagList * tag_list)
  *
  * MT safe.
  *
- * Returns: (transfer full): The new buffering message.
+ * Returns: (transfer full) (nullable): The new buffering message.
  */
 GstMessage *
 gst_message_new_buffering (GstObject * src, gint percent)
@@ -984,7 +989,7 @@ gst_message_new_segment_done (GstObject * src, GstFormat format,
  * Create a new application-typed message. GStreamer will never create these
  * messages; they are a gift from us to you. Enjoy.
  *
- * Returns: (transfer full): The new application message.
+ * Returns: (transfer full) (nullable): The new application message.
  *
  * MT safe.
  */
@@ -1007,7 +1012,7 @@ gst_message_new_application (GstObject * src, GstStructure * structure)
  * "the firewire cable was unplugged". The format of the message should be
  * documented in the element's documentation. The structure field can be %NULL.
  *
- * Returns: (transfer full): The new element message.
+ * Returns: (transfer full) (nullable): The new element message.
  *
  * MT safe.
  */
@@ -1159,6 +1164,43 @@ gst_message_get_structure (GstMessage * message)
 }
 
 /**
+ * gst_message_writable_structure:
+ * @message: The #GstMessage.
+ *
+ * Get a writable version of the structure.
+ *
+ * Returns: (transfer none): The structure of the message. The structure
+ * is still owned by the message, which means that you should not free
+ * it and that the pointer becomes invalid when you free the message.
+ * This function checks if @message is writable and will never return
+ * %NULL.
+ *
+ * MT safe.
+ *
+ * Since: 1.14
+ */
+GstStructure *
+gst_message_writable_structure (GstMessage * message)
+{
+  GstStructure *structure;
+
+  g_return_val_if_fail (GST_IS_MESSAGE (message), NULL);
+  g_return_val_if_fail (gst_message_is_writable (message), NULL);
+
+  structure = GST_MESSAGE_STRUCTURE (message);
+
+  if (structure == NULL) {
+    structure =
+        gst_structure_new_id_empty (gst_message_type_to_quark (GST_MESSAGE_TYPE
+            (message)));
+    gst_structure_set_parent_refcount (structure,
+        &message->mini_object.refcount);
+    GST_MESSAGE_STRUCTURE (message) = structure;
+  }
+  return structure;
+}
+
+/**
  * gst_message_has_name:
  * @message: The #GstMessage.
  * @name: name to check
@@ -1778,9 +1820,10 @@ gst_message_set_stream_status_object (GstMessage * message,
  *
  * Extracts the object managing the streaming thread from @message.
  *
- * Returns: a GValue containing the object that manages the streaming thread.
- * This object is usually of type GstTask but other types can be added in the
- * future. The object remains valid as long as @message is valid.
+ * Returns: (nullable): a GValue containing the object that manages the
+ * streaming thread. This object is usually of type GstTask but other types can
+ * be added in the future. The object remains valid as long as @message is
+ * valid.
  */
 const GValue *
 gst_message_get_stream_status_object (GstMessage * message)
@@ -2189,7 +2232,7 @@ gst_message_parse_qos_stats (GstMessage * message, GstFormat * format,
  * @code contains a well defined string describing the action.
  * @text should contain a user visible string detailing the current action.
  *
- * Returns: (transfer full): The new qos message.
+ * Returns: (transfer full) (nullable): The new qos message.
  */
 GstMessage *
 gst_message_new_progress (GstObject * src, GstProgressType type,
@@ -2466,7 +2509,7 @@ gst_message_new_need_context (GstObject * src, const gchar * context_type)
 /**
  * gst_message_parse_context_type:
  * @message: a GST_MESSAGE_NEED_CONTEXT type message
- * @context_type: (out) (allow-none): the context type, or %NULL
+ * @context_type: (out) (transfer none) (allow-none): the context type, or %NULL
  *
  * Parse a context type from an existing GST_MESSAGE_NEED_CONTEXT message.
  *
@@ -2649,6 +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
@@ -2683,11 +2789,12 @@ gst_message_new_property_notify (GstObject * src, const gchar * property_name,
  * @message: a #GstMessage of type %GST_MESSAGE_PROPERTY_NOTIFY
  * @object: (out) (allow-none) (transfer none): location where to store a
  *     pointer to the object whose property got changed, or %NULL
- * @property_name: (out) (allow-none): return location for the name of the
- *     property that got changed, or %NULL
- * @property_value: (out) (allow-none): return location for the new value of
- *     the property that got changed, or %NULL. This will only be set if the
- *     property notify watch was told to include the value when it was set up
+ * @property_name: (out) (transfer none) (allow-none): return location for
+ *     the name of the property that got changed, or %NULL
+ * @property_value: (out) (transfer none) (allow-none): return location for
+ *     the new value of the property that got changed, or %NULL. This will
+ *     only be set if the property notify watch was told to include the value
+ *     when it was set up
  *
  * Parses a property-notify message. These will be posted on the bus only
  * when set up with gst_element_add_property_notify_watch() or
@@ -2874,7 +2981,7 @@ gst_message_streams_selected_add (GstMessage * msg, GstStream * stream)
  *
  * Retrieves the #GstStream with index @index from the @message.
  *
- * Returns: (transfer full): A #GstStream
+ * Returns: (transfer full) (nullable): A #GstStream
  *
  * Since: 1.10
  */