* e.g. when using playbin in gapless playback mode, to get notified when
* the next title actually starts playing (which will be some time after
* the URI for the next title has been set).
- * @GST_MESSAGE_NEED_CONTEXT: Message indicating that an element wants a specific context (Since 1.2)
- * @GST_MESSAGE_HAVE_CONTEXT: Message indicating that an element created a context (Since 1.2)
+ * @GST_MESSAGE_NEED_CONTEXT: Message indicating that an element wants a specific context (Since: 1.2)
+ * @GST_MESSAGE_HAVE_CONTEXT: Message indicating that an element created a context (Since: 1.2)
* @GST_MESSAGE_EXTENDED: Message is an extended message type (see below).
* These extended message IDs can't be used directly with mask-based API
* like gst_bus_poll() or gst_bus_timed_pop_filtered(), but you can still
* filter for GST_MESSAGE_EXTENDED and then check the result for the
- * specific type. (Since 1.4)
+ * specific type. (Since: 1.4)
* @GST_MESSAGE_DEVICE_ADDED: Message indicating a #GstDevice was added to
- * a #GstDeviceProvider (Since 1.4)
+ * a #GstDeviceProvider (Since: 1.4)
* @GST_MESSAGE_DEVICE_REMOVED: Message indicating a #GstDevice was removed
- * from a #GstDeviceProvider (Since 1.4)
+ * from a #GstDeviceProvider (Since: 1.4)
* @GST_MESSAGE_PROPERTY_NOTIFY: Message indicating a #GObject property has
- * changed (Since 1.10)
+ * changed (Since: 1.10)
* @GST_MESSAGE_STREAM_COLLECTION: Message indicating a new #GstStreamCollection
- * is available (Since 1.10)
+ * is available (Since: 1.10)
* @GST_MESSAGE_STREAMS_SELECTED: Message indicating the active selection of
- * #GstStreams has changed (Since 1.10)
+ * #GstStreams has changed (Since: 1.10)
* @GST_MESSAGE_REDIRECT: Message indicating to request the application to
* try to play the given URL(s). Useful if for example a HTTP 302/303
- * response is received with a non-HTTP URL inside. (Since 1.10)
+ * response is received with a non-HTTP URL inside. (Since: 1.10)
+ * @GST_MESSAGE_DEVICE_CHANGED: Message indicating a #GstDevice was changed
+ * a #GstDeviceProvider (Since: 1.16)
* @GST_MESSAGE_ANY: mask for all of the above messages.
*
* The different message types that are available.
GST_MESSAGE_STREAM_COLLECTION = GST_MESSAGE_EXTENDED + 4,
GST_MESSAGE_STREAMS_SELECTED = GST_MESSAGE_EXTENDED + 5,
GST_MESSAGE_REDIRECT = GST_MESSAGE_EXTENDED + 6,
+ GST_MESSAGE_DEVICE_CHANGED = GST_MESSAGE_EXTENDED + 7,
GST_MESSAGE_ANY = (gint) (0xffffffff)
} GstMessageType;
#define GST_MESSAGE(obj) (GST_MESSAGE_CAST(obj))
/* the lock is used to handle the synchronous handling of messages,
- * the emiting thread is block until the handling thread processed
+ * the emitting thread is blocked until the handling thread processed
* the message using this mutex/cond pair */
#define GST_MESSAGE_GET_LOCK(message) (&GST_MESSAGE_CAST(message)->lock)
#define GST_MESSAGE_LOCK(message) g_mutex_lock(GST_MESSAGE_GET_LOCK(message))
gst_mini_object_unref (GST_MINI_OBJECT_CAST (msg));
}
+/**
+ * gst_clear_message: (skip)
+ * @msg_ptr: a pointer to a #GstMessage reference
+ *
+ * Clears a reference to a #GstMessage.
+ *
+ * @msg_ptr must not be %NULL.
+ *
+ * If the reference is %NULL then this function does nothing. Otherwise, the
+ * reference count of the message is decreased and the pointer is set to %NULL.
+ *
+ * Since: 1.16
+ */
+static inline void
+gst_clear_message (GstMessage ** msg_ptr)
+{
+ gst_clear_mini_object ((GstMiniObject **) msg_ptr);
+}
+
/* copy message */
/**
* gst_message_copy:
return gst_mini_object_replace ((GstMiniObject **) old_message, (GstMiniObject *) new_message);
}
+/**
+ * gst_message_take:
+ * @old_message: (inout) (transfer full): pointer to a pointer to a #GstMessage
+ * to be replaced.
+ * @new_message: (transfer full) (allow-none): pointer to a #GstMessage that
+ * will replace the message pointed to by @old_message.
+ *
+ * Modifies a pointer to a #GstMessage to point to a different #GstMessage. This
+ * function is similar to gst_message_replace() except that it takes ownership
+ * of @new_message.
+ *
+ * Returns: %TRUE if @new_message was different from @old_message
+ *
+ * Since: 1.16
+ */
+static inline gboolean
+gst_message_take (GstMessage **old_message, GstMessage *new_message)
+{
+ return gst_mini_object_take ((GstMiniObject **) old_message,
+ (GstMiniObject *) new_message);
+}
+
/* custom messages */
GST_API
void gst_message_parse_device_removed (GstMessage * message, GstDevice ** device);
+/* DEVICE_CHANGED */
+
+GST_API
+GstMessage * gst_message_new_device_changed (GstObject * src, GstDevice * device, GstDevice *changed_device);
+
+GST_API
+void gst_message_parse_device_changed (GstMessage * message, GstDevice ** device, GstDevice ** changed_device);
+
+
/* PROPERTY_NOTIFY */
GST_API