Jabber: initial version of Jingle support

1 files changed, 842 insertions, 0 deletions

diff --git a/include/gst/gstmessage.h b/include/gst/gstmessage.h
new file mode 100644
index 0000000000..ea3f49fea6
--- /dev/null
+++ b/include/gst/gstmessage.h
@@ -0,0 +1,842 @@
+/* GStreamer
+ * Copyright (C) 2004 Wim Taymans <wim@fluendo.com>
+ *
+ * gstmessage.h: Header for GstMessage subsystem
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __GST_MESSAGE_H__
+#define __GST_MESSAGE_H__
+
+#include <glib.h>
+
+G_BEGIN_DECLS
+
+typedef struct _GstMessage GstMessage;
+
+/**
+ * GstMessageType:
+ * @GST_MESSAGE_UNKNOWN: an undefined message
+ * @GST_MESSAGE_EOS: end-of-stream reached in a pipeline. The application will
+ * only receive this message in the PLAYING state and every time it sets a
+ * pipeline to PLAYING that is in the EOS state. The application can perform a
+ * flushing seek in the pipeline, which will undo the EOS state again.
+ * @GST_MESSAGE_ERROR: an error occurred. When the application receives an error
+ * message it should stop playback of the pipeline and not assume that more
+ * data will be played. It is possible to specify a redirection url to the error
+ * messages by setting a `redirect-location` field into the error message, application
+ * or high level bins might use the information as required.
+ * @GST_MESSAGE_WARNING: a warning occurred.
+ * @GST_MESSAGE_INFO: an info message occurred
+ * @GST_MESSAGE_TAG: a tag was found.
+ * @GST_MESSAGE_BUFFERING: the pipeline is buffering. When the application
+ * receives a buffering message in the PLAYING state for a non-live pipeline it
+ * must PAUSE the pipeline until the buffering completes, when the percentage
+ * field in the message is 100%. For live pipelines, no action must be
+ * performed and the buffering percentage can be used to inform the user about
+ * the progress.
+ * @GST_MESSAGE_STATE_CHANGED: a state change happened
+ * @GST_MESSAGE_STATE_DIRTY: an element changed state in a streaming thread.
+ * This message is deprecated.
+ * @GST_MESSAGE_STEP_DONE: a stepping operation finished.
+ * @GST_MESSAGE_CLOCK_PROVIDE: an element notifies its capability of providing
+ *                             a clock. This message is used internally and
+ *                             never forwarded to the application.
+ * @GST_MESSAGE_CLOCK_LOST: The current clock as selected by the pipeline became
+ *                          unusable. The pipeline will select a new clock on
+ *                          the next PLAYING state change. The application
+ *                          should set the pipeline to PAUSED and back to
+ *                          PLAYING when this message is received.
+ * @GST_MESSAGE_NEW_CLOCK: a new clock was selected in the pipeline.
+ * @GST_MESSAGE_STRUCTURE_CHANGE: the structure of the pipeline changed. This
+ * message is used internally and never forwarded to the application.
+ * @GST_MESSAGE_STREAM_STATUS: status about a stream, emitted when it starts,
+ *                             stops, errors, etc..
+ * @GST_MESSAGE_APPLICATION: message posted by the application, possibly
+ *                           via an application-specific element.
+ * @GST_MESSAGE_ELEMENT: element-specific message, see the specific element's
+ *                       documentation
+ * @GST_MESSAGE_SEGMENT_START: pipeline started playback of a segment. This
+ * message is used internally and never forwarded to the application.
+ * @GST_MESSAGE_SEGMENT_DONE: pipeline completed playback of a segment. This
+ * message is forwarded to the application after all elements that posted
+ * @GST_MESSAGE_SEGMENT_START posted a GST_MESSAGE_SEGMENT_DONE message.
+ * @GST_MESSAGE_DURATION_CHANGED: The duration of a pipeline changed. The
+ * application can get the new duration with a duration query.
+ * @GST_MESSAGE_ASYNC_START: Posted by elements when they start an ASYNC
+ * #GstStateChange. This message is not forwarded to the application but is used
+ * internally.
+ * @GST_MESSAGE_ASYNC_DONE: Posted by elements when they complete an ASYNC
+ * #GstStateChange. The application will only receive this message from the toplevel
+ * pipeline.
+ * @GST_MESSAGE_LATENCY: Posted by elements when their latency changes. The
+ * application should recalculate and distribute a new latency.
+ * @GST_MESSAGE_REQUEST_STATE: Posted by elements when they want the pipeline to
+ * change state. This message is a suggestion to the application which can
+ * decide to perform the state change on (part of) the pipeline.
+ * @GST_MESSAGE_STEP_START: A stepping operation was started.
+ * @GST_MESSAGE_QOS: A buffer was dropped or an element changed its processing
+ * strategy for Quality of Service reasons.
+ * @GST_MESSAGE_PROGRESS: A progress message.
+ * @GST_MESSAGE_TOC: A new table of contents (TOC) was found or previously found TOC
+ * was updated.
+ * @GST_MESSAGE_RESET_TIME: Message to request resetting the pipeline's
+ *     running time from the pipeline. This is an internal message which
+ *     applications will likely never receive.
+ * @GST_MESSAGE_STREAM_START: Message indicating start of a new stream. Useful
+ *     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_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)
+ * @GST_MESSAGE_DEVICE_ADDED: Message indicating a #GstDevice was added to
+ *     a #GstDeviceProvider (Since: 1.4)
+ * @GST_MESSAGE_DEVICE_REMOVED: Message indicating a #GstDevice was removed
+ *     from a #GstDeviceProvider (Since: 1.4)
+ * @GST_MESSAGE_PROPERTY_NOTIFY: Message indicating a #GObject property has
+ *     changed (Since: 1.10)
+ * @GST_MESSAGE_STREAM_COLLECTION: Message indicating a new #GstStreamCollection
+ *     is available (Since: 1.10)
+ * @GST_MESSAGE_STREAMS_SELECTED: Message indicating the active selection of
+ *     #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)
+ * @GST_MESSAGE_DEVICE_CHANGED: Message indicating a #GstDevice was changed
+ *     a #GstDeviceProvider (Since: 1.16)
+ * @GST_MESSAGE_INSTANT_RATE_REQUEST: Message sent by elements to request the
+ *     running time from the pipeline when an instant rate change should
+ *     be applied (which may be in the past when the answer arrives). (Since: 1.18)
+ * @GST_MESSAGE_ANY: mask for all of the above messages.
+ *
+ * The different message types that are available.
+ */
+/* NOTE: keep in sync with quark registration in gstmessage.c
+ * NOTE: keep GST_MESSAGE_ANY a valid gint to avoid compiler warnings.
+ */
+/* FIXME: 2.0: Make it NOT flags, just a regular 1,2,3,4.. enumeration */
+/* FIXME: For GST_MESSAGE_ANY ~0 -> 0xffffffff see
+ *        https://bugzilla.gnome.org/show_bug.cgi?id=732633
+ */
+typedef enum
+{
+  GST_MESSAGE_UNKNOWN           = 0,
+  GST_MESSAGE_EOS               = (1 << 0),
+  GST_MESSAGE_ERROR             = (1 << 1),
+  GST_MESSAGE_WARNING           = (1 << 2),
+  GST_MESSAGE_INFO              = (1 << 3),
+  GST_MESSAGE_TAG               = (1 << 4),
+  GST_MESSAGE_BUFFERING         = (1 << 5),
+  GST_MESSAGE_STATE_CHANGED     = (1 << 6),
+  GST_MESSAGE_STATE_DIRTY       = (1 << 7),
+  GST_MESSAGE_STEP_DONE         = (1 << 8),
+  GST_MESSAGE_CLOCK_PROVIDE     = (1 << 9),
+  GST_MESSAGE_CLOCK_LOST        = (1 << 10),
+  GST_MESSAGE_NEW_CLOCK         = (1 << 11),
+  GST_MESSAGE_STRUCTURE_CHANGE  = (1 << 12),
+  GST_MESSAGE_STREAM_STATUS     = (1 << 13),
+  GST_MESSAGE_APPLICATION       = (1 << 14),
+  GST_MESSAGE_ELEMENT           = (1 << 15),
+  GST_MESSAGE_SEGMENT_START     = (1 << 16),
+  GST_MESSAGE_SEGMENT_DONE      = (1 << 17),
+  GST_MESSAGE_DURATION_CHANGED  = (1 << 18),
+  GST_MESSAGE_LATENCY           = (1 << 19),
+  GST_MESSAGE_ASYNC_START       = (1 << 20),
+  GST_MESSAGE_ASYNC_DONE        = (1 << 21),
+  GST_MESSAGE_REQUEST_STATE     = (1 << 22),
+  GST_MESSAGE_STEP_START        = (1 << 23),
+  GST_MESSAGE_QOS               = (1 << 24),
+  GST_MESSAGE_PROGRESS          = (1 << 25),
+  GST_MESSAGE_TOC               = (1 << 26),
+  GST_MESSAGE_RESET_TIME        = (1 << 27),
+  GST_MESSAGE_STREAM_START      = (1 << 28),
+  GST_MESSAGE_NEED_CONTEXT      = (1 << 29),
+  GST_MESSAGE_HAVE_CONTEXT      = (1 << 30),
+  GST_MESSAGE_EXTENDED          = (gint) (1u << 31),
+  GST_MESSAGE_DEVICE_ADDED      = GST_MESSAGE_EXTENDED + 1,
+  GST_MESSAGE_DEVICE_REMOVED    = GST_MESSAGE_EXTENDED + 2,
+  GST_MESSAGE_PROPERTY_NOTIFY   = GST_MESSAGE_EXTENDED + 3,
+  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_INSTANT_RATE_REQUEST = GST_MESSAGE_EXTENDED + 8,
+  GST_MESSAGE_ANY               = (gint) (0xffffffff)
+} GstMessageType;
+
+#include <gst/gstminiobject.h>
+#include <gst/gstobject.h>
+#include <gst/gstelement.h>
+#include <gst/gsttaglist.h>
+#include <gst/gststructure.h>
+#include <gst/gstquery.h>
+#include <gst/gsttoc.h>
+#include <gst/gstdevice.h>
+#include <gst/gststreams.h>
+#include <gst/gststreamcollection.h>
+
+GST_API GType _gst_message_type;
+
+#define GST_TYPE_MESSAGE                         (_gst_message_type)
+#define GST_IS_MESSAGE(obj)                      (GST_IS_MINI_OBJECT_TYPE (obj, GST_TYPE_MESSAGE))
+#define GST_MESSAGE_CAST(obj)                    ((GstMessage*)(obj))
+#define GST_MESSAGE(obj)                         (GST_MESSAGE_CAST(obj))
+
+/* the lock is used to handle the synchronous handling of messages,
+ * 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))
+#define GST_MESSAGE_UNLOCK(message)     g_mutex_unlock(GST_MESSAGE_GET_LOCK(message))
+#define GST_MESSAGE_GET_COND(message)   (&GST_MESSAGE_CAST(message)->cond)
+#define GST_MESSAGE_WAIT(message)       g_cond_wait(GST_MESSAGE_GET_COND(message),GST_MESSAGE_GET_LOCK(message))
+#define GST_MESSAGE_SIGNAL(message)     g_cond_signal(GST_MESSAGE_GET_COND(message))
+
+/**
+ * GST_MESSAGE_TYPE:
+ * @message: a #GstMessage
+ *
+ * Get the #GstMessageType of @message.
+ */
+#define GST_MESSAGE_TYPE(message)       (GST_MESSAGE_CAST(message)->type)
+/**
+ * GST_MESSAGE_TYPE_IS_EXTENDED:
+ * @message: a #GstMessage
+ *
+ * Check if the message is in the extended message group
+ * Since: 1.4
+ */
+#define GST_MESSAGE_TYPE_IS_EXTENDED(message)       (!!(GST_MESSAGE_CAST(message)->type & GST_MESSAGE_EXTENDED))
+
+/**
+ * GST_MESSAGE_TYPE_NAME:
+ * @message: a #GstMessage
+ *
+ * Get a constant string representation of the #GstMessageType of @message.
+ */
+#define GST_MESSAGE_TYPE_NAME(message)  gst_message_type_get_name(GST_MESSAGE_TYPE(message))
+/**
+ * GST_MESSAGE_TIMESTAMP:
+ * @message: a #GstMessage
+ *
+ * Get the timestamp of @message. This is the timestamp when the message
+ * was created.
+ */
+#define GST_MESSAGE_TIMESTAMP(message)  (GST_MESSAGE_CAST(message)->timestamp)
+/**
+ * GST_MESSAGE_SRC:
+ * @message: a #GstMessage
+ *
+ * Get the object that posted @message.
+ */
+#define GST_MESSAGE_SRC(message)        (GST_MESSAGE_CAST(message)->src)
+
+/**
+ * GST_MESSAGE_SEQNUM:
+ * @message: a #GstMessage
+ *
+ * Get the sequence number of @message.
+ */
+#define GST_MESSAGE_SEQNUM(message)     (GST_MESSAGE_CAST(message)->seqnum)
+
+/**
+ * GST_MESSAGE_SRC_NAME:
+ * @message: a #GstMessage
+ *
+ * Get the name of the object that posted @message. Returns "(NULL)" if
+ * the message has no source object set.
+ */
+#define GST_MESSAGE_SRC_NAME(message)   (GST_MESSAGE_SRC(message) ? \
+    GST_OBJECT_NAME (GST_MESSAGE_SRC(message)) : "(NULL)")
+
+/**
+ * GstStructureChangeType:
+ * @GST_STRUCTURE_CHANGE_TYPE_PAD_LINK: Pad linking is starting or done.
+ * @GST_STRUCTURE_CHANGE_TYPE_PAD_UNLINK: Pad unlinking is starting or done.
+ *
+ * The type of a %GST_MESSAGE_STRUCTURE_CHANGE.
+ */
+typedef enum {
+  GST_STRUCTURE_CHANGE_TYPE_PAD_LINK   = 0,
+  GST_STRUCTURE_CHANGE_TYPE_PAD_UNLINK = 1
+} GstStructureChangeType;
+
+/**
+ * GstStreamStatusType:
+ * @GST_STREAM_STATUS_TYPE_CREATE: A new thread need to be created.
+ * @GST_STREAM_STATUS_TYPE_ENTER: a thread entered its loop function
+ * @GST_STREAM_STATUS_TYPE_LEAVE: a thread left its loop function
+ * @GST_STREAM_STATUS_TYPE_DESTROY: a thread is destroyed
+ * @GST_STREAM_STATUS_TYPE_START: a thread is started
+ * @GST_STREAM_STATUS_TYPE_PAUSE: a thread is paused
+ * @GST_STREAM_STATUS_TYPE_STOP: a thread is stopped
+ *
+ * The type of a %GST_MESSAGE_STREAM_STATUS. The stream status messages inform the
+ * application of new streaming threads and their status.
+ */
+typedef enum {
+  GST_STREAM_STATUS_TYPE_CREATE   = 0,
+  GST_STREAM_STATUS_TYPE_ENTER    = 1,
+  GST_STREAM_STATUS_TYPE_LEAVE    = 2,
+  GST_STREAM_STATUS_TYPE_DESTROY  = 3,
+
+  GST_STREAM_STATUS_TYPE_START    = 8,
+  GST_STREAM_STATUS_TYPE_PAUSE    = 9,
+  GST_STREAM_STATUS_TYPE_STOP     = 10
+} GstStreamStatusType;
+
+/**
+ * GstProgressType:
+ * @GST_PROGRESS_TYPE_START: A new task started.
+ * @GST_PROGRESS_TYPE_CONTINUE: A task completed and a new one continues.
+ * @GST_PROGRESS_TYPE_COMPLETE: A task completed.
+ * @GST_PROGRESS_TYPE_CANCELED: A task was canceled.
+ * @GST_PROGRESS_TYPE_ERROR: A task caused an error. An error message is also
+ *          posted on the bus.
+ *
+ * The type of a %GST_MESSAGE_PROGRESS. The progress messages inform the
+ * application of the status of asynchronous tasks.
+ */
+typedef enum {
+  GST_PROGRESS_TYPE_START    = 0,
+  GST_PROGRESS_TYPE_CONTINUE = 1,
+  GST_PROGRESS_TYPE_COMPLETE = 2,
+  GST_PROGRESS_TYPE_CANCELED = 3,
+  GST_PROGRESS_TYPE_ERROR    = 4
+} GstProgressType;
+
+/**
+ * GstMessage:
+ * @mini_object: the parent structure
+ * @type: the #GstMessageType of the message
+ * @timestamp: the timestamp of the message
+ * @src: the src of the message
+ * @seqnum: the sequence number of the message
+ *
+ * A #GstMessage.
+ */
+struct _GstMessage
+{
+  GstMiniObject   mini_object;
+
+  /*< public > *//* with COW */
+  GstMessageType  type;
+  guint64         timestamp;
+  GstObject      *src;
+  guint32         seqnum;
+
+  /*< private >*//* with MESSAGE_LOCK */
+  GMutex          lock;                 /* lock and cond for async delivery */
+  GCond           cond;
+};
+
+#include <gst/gstquery.h>
+
+GST_API
+GType           gst_message_get_type            (void);
+
+GST_API
+const gchar*    gst_message_type_get_name       (GstMessageType type);
+
+GST_API
+GQuark          gst_message_type_to_quark       (GstMessageType type);
+
+#ifndef GST_DISABLE_MINIOBJECT_INLINE_FUNCTIONS
+/* refcounting */
+static inline GstMessage *
+gst_message_ref (GstMessage * msg)
+{
+  return (GstMessage *) gst_mini_object_ref (GST_MINI_OBJECT_CAST (msg));
+}
+
+static inline void
+gst_message_unref (GstMessage * msg)
+{
+  gst_mini_object_unref (GST_MINI_OBJECT_CAST (msg));
+}
+
+static inline void
+gst_clear_message (GstMessage ** msg_ptr)
+{
+  gst_clear_mini_object ((GstMiniObject **) msg_ptr);
+}
+
+/* copy message */
+static inline GstMessage * gst_message_copy (const GstMessage * msg);
+static inline GstMessage *
+gst_message_copy (const GstMessage * msg)
+{
+  return GST_MESSAGE_CAST (gst_mini_object_copy (GST_MINI_OBJECT_CONST_CAST (msg)));
+}
+#else /* GST_DISABLE_MINIOBJECT_INLINE_FUNCTIONS */
+GST_API
+GstMessage *  gst_message_ref   (GstMessage * msg);
+
+GST_API
+void          gst_message_unref (GstMessage * msg);
+
+GST_API
+void          gst_clear_message (GstMessage ** msg_ptr);
+
+GST_API
+GstMessage *  gst_message_copy  (const GstMessage * msg);
+#endif /* GST_DISABLE_MINIOBJECT_INLINE_FUNCTIONS */
+
+/**
+ * gst_message_is_writable:
+ * @msg: a #GstMessage
+ *
+ * Tests if you can safely write into a message's structure or validly
+ * modify the seqnum and timestamp fields.
+ */
+#define         gst_message_is_writable(msg)     gst_mini_object_is_writable (GST_MINI_OBJECT_CAST (msg))
+/**
+ * gst_message_make_writable:
+ * @msg: (transfer full): the message to make writable
+ *
+ * Checks if a message is writable. If not, a writable copy is made and
+ * returned.
+ *
+ * Returns: (transfer full): a message (possibly a duplicate) that is writable.
+ *
+ * MT safe
+ */
+#define         gst_message_make_writable(msg)  GST_MESSAGE_CAST (gst_mini_object_make_writable (GST_MINI_OBJECT_CAST (msg)))
+
+#ifndef GST_DISABLE_MINIOBJECT_INLINE_FUNCTIONS
+static inline gboolean gst_message_replace (GstMessage **old_message, GstMessage *new_message);
+static inline gboolean
+gst_message_replace (GstMessage **old_message, GstMessage *new_message)
+{
+  return gst_mini_object_replace ((GstMiniObject **) old_message, (GstMiniObject *) new_message);
+}
+
+static inline gboolean
+gst_message_take (GstMessage **old_message, GstMessage *new_message)
+{
+  return gst_mini_object_take ((GstMiniObject **) old_message,
+      (GstMiniObject *) new_message);
+}
+#else /* GST_DISABLE_MINIOBJECT_INLINE_FUNCTIONS */
+GST_API
+gboolean  gst_message_replace                   (GstMessage ** old_message,
+                                                 GstMessage * new_message);
+
+GST_API
+gboolean  gst_message_take                      (GstMessage ** old_message,
+                                                 GstMessage * new_message);
+#endif /* GST_DISABLE_MINIOBJECT_INLINE_FUNCTIONS */
+
+/* custom messages */
+
+GST_API
+GstMessage *    gst_message_new_custom          (GstMessageType type,
+                                                 GstObject    * src,
+                                                 GstStructure * structure) G_GNUC_MALLOC;
+GST_API
+const GstStructure *
+                gst_message_get_structure       (GstMessage *message);
+
+GST_API
+GstStructure *  gst_message_writable_structure  (GstMessage *message);
+
+GST_API
+gboolean        gst_message_has_name            (GstMessage *message, const gchar *name);
+
+/* identifiers for events and messages */
+
+GST_API
+guint32         gst_message_get_seqnum          (GstMessage *message);
+
+GST_API
+void            gst_message_set_seqnum          (GstMessage *message, guint32 seqnum);
+
+/* EOS */
+
+GST_API
+GstMessage *    gst_message_new_eos             (GstObject * src) G_GNUC_MALLOC;
+
+/* ERROR */
+
+GST_API
+GstMessage *    gst_message_new_error           (GstObject * src, GError * error, const gchar * debug) G_GNUC_MALLOC;
+
+GST_API
+GstMessage *    gst_message_new_error_with_details (GstObject * src, GError * error, const gchar * debug, GstStructure * details) G_GNUC_MALLOC;
+
+GST_API
+void            gst_message_parse_error         (GstMessage *message, GError **gerror, gchar **debug);
+
+GST_API
+void            gst_message_parse_error_details (GstMessage *message, const GstStructure **structure);
+
+/* WARNING */
+
+GST_API
+GstMessage *    gst_message_new_warning         (GstObject * src, GError * error, const gchar * debug) G_GNUC_MALLOC;
+
+GST_API
+GstMessage *    gst_message_new_warning_with_details (GstObject * src, GError * error, const gchar * debug, GstStructure * details) G_GNUC_MALLOC;
+
+GST_API
+void            gst_message_parse_warning       (GstMessage *message, GError **gerror, gchar **debug);
+
+GST_API
+void            gst_message_parse_warning_details (GstMessage *message, const GstStructure **structure);
+
+/* INFO */
+
+GST_API
+GstMessage *    gst_message_new_info            (GstObject * src, GError * error, const gchar * debug) G_GNUC_MALLOC;
+
+GST_API
+GstMessage *    gst_message_new_info_with_details (GstObject * src, GError * error, const gchar * debug, GstStructure * details) G_GNUC_MALLOC;
+
+GST_API
+void            gst_message_parse_info          (GstMessage *message, GError **gerror, gchar **debug);
+
+GST_API
+void            gst_message_parse_info_details  (GstMessage *message, const GstStructure **structure);
+
+/* TAG */
+
+GST_API
+GstMessage *    gst_message_new_tag             (GstObject * src, GstTagList * tag_list) G_GNUC_MALLOC;
+
+GST_API
+void            gst_message_parse_tag           (GstMessage *message, GstTagList **tag_list);
+
+/* BUFFERING */
+
+GST_API
+GstMessage *    gst_message_new_buffering         (GstObject * src, gint percent) G_GNUC_MALLOC;
+
+GST_API
+void            gst_message_parse_buffering       (GstMessage *message, gint *percent);
+
+GST_API
+void            gst_message_set_buffering_stats   (GstMessage *message, GstBufferingMode mode,
+                                                   gint avg_in, gint avg_out,
+                                                   gint64 buffering_left);
+GST_API
+void            gst_message_parse_buffering_stats (GstMessage *message, GstBufferingMode *mode,
+                                                   gint *avg_in, gint *avg_out,
+                                                   gint64 *buffering_left);
+
+/* STATE_CHANGED */
+
+GST_API
+GstMessage *    gst_message_new_state_changed   (GstObject * src, GstState oldstate,
+                                                 GstState newstate, GstState pending) G_GNUC_MALLOC;
+GST_API
+void            gst_message_parse_state_changed (GstMessage *message, GstState *oldstate,
+                                                 GstState *newstate, GstState *pending);
+
+/* STATE_DIRTY */
+
+GST_API
+GstMessage *    gst_message_new_state_dirty     (GstObject * src) G_GNUC_MALLOC;
+
+/* STEP_DONE */
+
+GST_API
+GstMessage *    gst_message_new_step_done       (GstObject * src, GstFormat format, guint64 amount,
+                                                 gdouble rate, gboolean flush, gboolean intermediate,
+                                                 guint64 duration, gboolean eos) G_GNUC_MALLOC;
+GST_API
+void            gst_message_parse_step_done     (GstMessage * message, GstFormat *format, guint64 *amount,
+                                                 gdouble *rate, gboolean *flush, gboolean *intermediate,
+                                                 guint64 *duration, gboolean *eos);
+/* CLOCK_PROVIDE */
+
+GST_API
+GstMessage *    gst_message_new_clock_provide   (GstObject * src, GstClock *clock, gboolean ready) G_GNUC_MALLOC;
+
+GST_API
+void            gst_message_parse_clock_provide (GstMessage *message, GstClock **clock,
+                                                 gboolean *ready);
+
+/* CLOCK_LOST */
+
+GST_API
+GstMessage *    gst_message_new_clock_lost      (GstObject * src, GstClock *clock) G_GNUC_MALLOC;
+
+GST_API
+void            gst_message_parse_clock_lost    (GstMessage *message, GstClock **clock);
+
+/* NEW_CLOCK */
+
+GST_API
+GstMessage *    gst_message_new_new_clock       (GstObject * src, GstClock *clock) G_GNUC_MALLOC;
+
+GST_API
+void            gst_message_parse_new_clock     (GstMessage *message, GstClock **clock);
+
+/* APPLICATION */
+
+GST_API
+GstMessage *    gst_message_new_application     (GstObject * src, GstStructure * structure) G_GNUC_MALLOC;
+
+/* ELEMENT */
+
+GST_API
+GstMessage *    gst_message_new_element         (GstObject * src, GstStructure * structure) G_GNUC_MALLOC;
+
+/* SEGMENT_START */
+
+GST_API
+GstMessage *    gst_message_new_segment_start   (GstObject * src, GstFormat format, gint64 position) G_GNUC_MALLOC;
+
+GST_API
+void            gst_message_parse_segment_start (GstMessage *message, GstFormat *format,
+                                                 gint64 *position);
+
+/* SEGMENT_DONE */
+
+GST_API
+GstMessage *    gst_message_new_segment_done    (GstObject * src, GstFormat format, gint64 position) G_GNUC_MALLOC;
+
+GST_API
+void            gst_message_parse_segment_done  (GstMessage *message, GstFormat *format,
+                                                 gint64 *position);
+
+/* DURATION_CHANGED */
+
+GST_API
+GstMessage *    gst_message_new_duration_changed (GstObject * src) G_GNUC_MALLOC;
+
+/* LATENCY */
+
+GST_API
+GstMessage *    gst_message_new_latency         (GstObject * src) G_GNUC_MALLOC;
+
+/* ASYNC_START */
+
+GST_API
+GstMessage *    gst_message_new_async_start     (GstObject * src) G_GNUC_MALLOC;
+
+/* ASYNC_DONE */
+
+GST_API
+GstMessage *    gst_message_new_async_done      (GstObject * src, GstClockTime running_time) G_GNUC_MALLOC;
+
+GST_API
+void            gst_message_parse_async_done    (GstMessage *message, GstClockTime *running_time);
+
+/* STRUCTURE CHANGE */
+
+GST_API
+GstMessage *    gst_message_new_structure_change   (GstObject * src, GstStructureChangeType type,
+                                                    GstElement *owner, gboolean busy) G_GNUC_MALLOC;
+GST_API
+void            gst_message_parse_structure_change (GstMessage *message, GstStructureChangeType *type,
+                                                    GstElement **owner, gboolean *busy);
+
+/* STREAM STATUS */
+
+GST_API
+GstMessage *    gst_message_new_stream_status        (GstObject * src, GstStreamStatusType type,
+                                                      GstElement *owner) G_GNUC_MALLOC;
+GST_API
+void            gst_message_parse_stream_status      (GstMessage *message, GstStreamStatusType *type,
+                                                      GstElement **owner);
+GST_API
+void            gst_message_set_stream_status_object (GstMessage *message, const GValue *object);
+
+GST_API
+const GValue *  gst_message_get_stream_status_object (GstMessage *message);
+
+/* REQUEST_STATE */
+
+GST_API
+GstMessage *    gst_message_new_request_state   (GstObject * src, GstState state) G_GNUC_MALLOC;
+
+GST_API
+void            gst_message_parse_request_state (GstMessage * message, GstState *state);
+
+/* STEP_START */
+
+GST_API
+GstMessage *    gst_message_new_step_start      (GstObject * src, gboolean active, GstFormat format,
+                                                 guint64 amount, gdouble rate, gboolean flush,
+                                                 gboolean intermediate) G_GNUC_MALLOC;
+GST_API
+void            gst_message_parse_step_start    (GstMessage * message, gboolean *active, GstFormat *format,
+                                                 guint64 *amount, gdouble *rate, gboolean *flush,
+                                                 gboolean *intermediate);
+
+/* QOS */
+
+GST_API
+GstMessage *    gst_message_new_qos             (GstObject * src, gboolean live, guint64 running_time,
+                                                 guint64 stream_time, guint64 timestamp, guint64 duration) G_GNUC_MALLOC;
+GST_API
+void            gst_message_set_qos_values      (GstMessage * message, gint64 jitter, gdouble proportion,
+                                                 gint quality);
+GST_API
+void            gst_message_set_qos_stats       (GstMessage * message, GstFormat format, guint64 processed,
+                                                 guint64 dropped);
+GST_API
+void            gst_message_parse_qos           (GstMessage * message, gboolean * live, guint64 * running_time,
+                                                 guint64 * stream_time, guint64 * timestamp, guint64 * duration);
+GST_API
+void            gst_message_parse_qos_values    (GstMessage * message, gint64 * jitter, gdouble * proportion,
+                                                 gint * quality);
+GST_API
+void            gst_message_parse_qos_stats     (GstMessage * message, GstFormat * format, guint64 * processed,
+                                                 guint64 * dropped);
+/* PROGRESS */
+
+GST_API
+GstMessage *    gst_message_new_progress           (GstObject * src, GstProgressType type, const gchar *code,
+                                                    const gchar *text) G_GNUC_MALLOC;
+GST_API
+void            gst_message_parse_progress         (GstMessage * message, GstProgressType * type, gchar ** code,
+                                                    gchar ** text);
+
+/* TOC */
+
+GST_API
+GstMessage *    gst_message_new_toc             (GstObject *src, GstToc *toc, gboolean updated);
+
+GST_API
+void            gst_message_parse_toc           (GstMessage *message, GstToc **toc, gboolean *updated);
+
+/* RESET_TIME */
+
+GST_API
+GstMessage *    gst_message_new_reset_time      (GstObject * src, GstClockTime running_time) G_GNUC_MALLOC;
+
+GST_API
+void            gst_message_parse_reset_time    (GstMessage *message, GstClockTime *running_time);
+
+/* STREAM_START */
+
+GST_API
+GstMessage *    gst_message_new_stream_start    (GstObject * src) G_GNUC_MALLOC;
+
+GST_API
+void            gst_message_set_group_id        (GstMessage *message, guint group_id);
+
+GST_API
+gboolean        gst_message_parse_group_id      (GstMessage *message, guint *group_id);
+
+/* NEED_CONTEXT */
+
+GST_API
+GstMessage *    gst_message_new_need_context    (GstObject * src, const gchar * context_type) G_GNUC_MALLOC;
+
+GST_API
+gboolean        gst_message_parse_context_type  (GstMessage * message, const gchar ** context_type);
+
+/* HAVE_CONTEXT */
+
+GST_API
+GstMessage *    gst_message_new_have_context    (GstObject * src, GstContext *context) G_GNUC_MALLOC;
+
+GST_API
+void            gst_message_parse_have_context  (GstMessage *message, GstContext **context);
+
+/* DEVICE_ADDED */
+
+GST_API
+GstMessage *    gst_message_new_device_added    (GstObject * src, GstDevice * device) G_GNUC_MALLOC;
+
+GST_API
+void            gst_message_parse_device_added  (GstMessage * message, GstDevice ** device);
+
+/* DEVICE_REMOVED */
+
+GST_API
+GstMessage *    gst_message_new_device_removed    (GstObject * src, GstDevice * device) G_GNUC_MALLOC;
+
+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
+GstMessage *    gst_message_new_property_notify   (GstObject * src, const gchar * property_name, GValue * val) G_GNUC_MALLOC;
+
+GST_API
+void            gst_message_parse_property_notify (GstMessage * message, GstObject ** object, const gchar ** property_name, const GValue ** property_value);
+
+/* STREAM_COLLECTION */
+
+GST_API
+GstMessage *    gst_message_new_stream_collection   (GstObject * src, GstStreamCollection * collection) G_GNUC_MALLOC;
+
+GST_API
+void            gst_message_parse_stream_collection (GstMessage *message, GstStreamCollection **collection);
+
+/* STREAMS_SELECTED */
+
+GST_API
+GstMessage *    gst_message_new_streams_selected (GstObject *src, GstStreamCollection *collection);
+
+GST_API
+void            gst_message_streams_selected_add (GstMessage *message, GstStream *stream);
+
+GST_API
+void            gst_message_parse_streams_selected (GstMessage * message, GstStreamCollection **collection);
+
+GST_API
+guint           gst_message_streams_selected_get_size (GstMessage * message);
+
+GST_API
+GstStream      *gst_message_streams_selected_get_stream (GstMessage *message, guint idx);
+
+/* REDIRECT */
+
+GST_API
+GstMessage *    gst_message_new_redirect             (GstObject * src, const gchar * location, GstTagList * tag_list, const GstStructure * entry_struct) G_GNUC_MALLOC;
+
+GST_API
+void            gst_message_add_redirect_entry       (GstMessage * message, const gchar * location, GstTagList * tag_list, const GstStructure * entry_struct);
+
+GST_API
+void            gst_message_parse_redirect_entry     (GstMessage * message, gsize entry_index, const gchar ** location, GstTagList ** tag_list, const GstStructure ** entry_struct);
+
+GST_API
+gsize           gst_message_get_num_redirect_entries (GstMessage * message);
+
+/* INSTANT_RATE_REQUEST */
+
+GST_API
+GstMessage *    gst_message_new_instant_rate_request   (GstObject * src, gdouble rate_multiplier) G_GNUC_MALLOC;
+GST_API
+void            gst_message_parse_instant_rate_request (GstMessage * message, gdouble * rate_multiplier);
+
+G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstMessage, gst_message_unref)
+
+G_END_DECLS
+
+#endif /* __GST_MESSAGE_H__ */