* @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_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 + 6,
GST_MESSAGE_ANY = (gint) (0xffffffff)
} GstMessageType;
#include <gst/gststreams.h>
#include <gst/gststreamcollection.h>
-GST_EXPORT GType _gst_message_type;
+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(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))
#include <gst/gstquery.h>
-GST_EXPORT
+GST_API
GType gst_message_get_type (void);
-GST_EXPORT
+GST_API
const gchar* gst_message_type_get_name (GstMessageType type);
-GST_EXPORT
+GST_API
GQuark gst_message_type_to_quark (GstMessageType type);
/* refcounting */
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_EXPORT
+GST_API
GstMessage * gst_message_new_custom (GstMessageType type,
GstObject * src,
GstStructure * structure) G_GNUC_MALLOC;
-GST_EXPORT
+GST_API
const GstStructure *
gst_message_get_structure (GstMessage *message);
-GST_EXPORT
+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_EXPORT
+GST_API
guint32 gst_message_get_seqnum (GstMessage *message);
-GST_EXPORT
+GST_API
void gst_message_set_seqnum (GstMessage *message, guint32 seqnum);
/* EOS */
-GST_EXPORT
+GST_API
GstMessage * gst_message_new_eos (GstObject * src) G_GNUC_MALLOC;
/* ERROR */
-GST_EXPORT
+GST_API
GstMessage * gst_message_new_error (GstObject * src, GError * error, const gchar * debug) G_GNUC_MALLOC;
-GST_EXPORT
+GST_API
GstMessage * gst_message_new_error_with_details (GstObject * src, GError * error, const gchar * debug, GstStructure * details) G_GNUC_MALLOC;
-GST_EXPORT
+GST_API
void gst_message_parse_error (GstMessage *message, GError **gerror, gchar **debug);
-GST_EXPORT
+GST_API
void gst_message_parse_error_details (GstMessage *message, const GstStructure **structure);
/* WARNING */
-GST_EXPORT
+GST_API
GstMessage * gst_message_new_warning (GstObject * src, GError * error, const gchar * debug) G_GNUC_MALLOC;
-GST_EXPORT
+GST_API
GstMessage * gst_message_new_warning_with_details (GstObject * src, GError * error, const gchar * debug, GstStructure * details) G_GNUC_MALLOC;
-GST_EXPORT
+GST_API
void gst_message_parse_warning (GstMessage *message, GError **gerror, gchar **debug);
-GST_EXPORT
+GST_API
void gst_message_parse_warning_details (GstMessage *message, const GstStructure **structure);
/* INFO */
-GST_EXPORT
+GST_API
GstMessage * gst_message_new_info (GstObject * src, GError * error, const gchar * debug) G_GNUC_MALLOC;
-GST_EXPORT
+GST_API
GstMessage * gst_message_new_info_with_details (GstObject * src, GError * error, const gchar * debug, GstStructure * details) G_GNUC_MALLOC;
-GST_EXPORT
+GST_API
void gst_message_parse_info (GstMessage *message, GError **gerror, gchar **debug);
-GST_EXPORT
+GST_API
void gst_message_parse_info_details (GstMessage *message, const GstStructure **structure);
/* TAG */
-GST_EXPORT
+GST_API
GstMessage * gst_message_new_tag (GstObject * src, GstTagList * tag_list) G_GNUC_MALLOC;
-GST_EXPORT
+GST_API
void gst_message_parse_tag (GstMessage *message, GstTagList **tag_list);
/* BUFFERING */
-GST_EXPORT
+GST_API
GstMessage * gst_message_new_buffering (GstObject * src, gint percent) G_GNUC_MALLOC;
-GST_EXPORT
+GST_API
void gst_message_parse_buffering (GstMessage *message, gint *percent);
-GST_EXPORT
+GST_API
void gst_message_set_buffering_stats (GstMessage *message, GstBufferingMode mode,
gint avg_in, gint avg_out,
gint64 buffering_left);
-GST_EXPORT
+GST_API
void gst_message_parse_buffering_stats (GstMessage *message, GstBufferingMode *mode,
gint *avg_in, gint *avg_out,
gint64 *buffering_left);
/* STATE_CHANGED */
-GST_EXPORT
+GST_API
GstMessage * gst_message_new_state_changed (GstObject * src, GstState oldstate,
GstState newstate, GstState pending) G_GNUC_MALLOC;
-GST_EXPORT
+GST_API
void gst_message_parse_state_changed (GstMessage *message, GstState *oldstate,
GstState *newstate, GstState *pending);
/* STATE_DIRTY */
-GST_EXPORT
+GST_API
GstMessage * gst_message_new_state_dirty (GstObject * src) G_GNUC_MALLOC;
/* STEP_DONE */
-GST_EXPORT
+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_EXPORT
+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_EXPORT
+GST_API
GstMessage * gst_message_new_clock_provide (GstObject * src, GstClock *clock, gboolean ready) G_GNUC_MALLOC;
-GST_EXPORT
+GST_API
void gst_message_parse_clock_provide (GstMessage *message, GstClock **clock,
gboolean *ready);
/* CLOCK_LOST */
-GST_EXPORT
+GST_API
GstMessage * gst_message_new_clock_lost (GstObject * src, GstClock *clock) G_GNUC_MALLOC;
-GST_EXPORT
+GST_API
void gst_message_parse_clock_lost (GstMessage *message, GstClock **clock);
/* NEW_CLOCK */
-GST_EXPORT
+GST_API
GstMessage * gst_message_new_new_clock (GstObject * src, GstClock *clock) G_GNUC_MALLOC;
-GST_EXPORT
+GST_API
void gst_message_parse_new_clock (GstMessage *message, GstClock **clock);
/* APPLICATION */
-GST_EXPORT
+GST_API
GstMessage * gst_message_new_application (GstObject * src, GstStructure * structure) G_GNUC_MALLOC;
/* ELEMENT */
-GST_EXPORT
+GST_API
GstMessage * gst_message_new_element (GstObject * src, GstStructure * structure) G_GNUC_MALLOC;
/* SEGMENT_START */
-GST_EXPORT
+GST_API
GstMessage * gst_message_new_segment_start (GstObject * src, GstFormat format, gint64 position) G_GNUC_MALLOC;
-GST_EXPORT
+GST_API
void gst_message_parse_segment_start (GstMessage *message, GstFormat *format,
gint64 *position);
/* SEGMENT_DONE */
-GST_EXPORT
+GST_API
GstMessage * gst_message_new_segment_done (GstObject * src, GstFormat format, gint64 position) G_GNUC_MALLOC;
-GST_EXPORT
+GST_API
void gst_message_parse_segment_done (GstMessage *message, GstFormat *format,
gint64 *position);
/* DURATION_CHANGED */
-GST_EXPORT
+GST_API
GstMessage * gst_message_new_duration_changed (GstObject * src) G_GNUC_MALLOC;
/* LATENCY */
-GST_EXPORT
+GST_API
GstMessage * gst_message_new_latency (GstObject * src) G_GNUC_MALLOC;
/* ASYNC_START */
-GST_EXPORT
+GST_API
GstMessage * gst_message_new_async_start (GstObject * src) G_GNUC_MALLOC;
/* ASYNC_DONE */
-GST_EXPORT
+GST_API
GstMessage * gst_message_new_async_done (GstObject * src, GstClockTime running_time) G_GNUC_MALLOC;
-GST_EXPORT
+GST_API
void gst_message_parse_async_done (GstMessage *message, GstClockTime *running_time);
/* STRUCTURE CHANGE */
-GST_EXPORT
+GST_API
GstMessage * gst_message_new_structure_change (GstObject * src, GstStructureChangeType type,
GstElement *owner, gboolean busy) G_GNUC_MALLOC;
-GST_EXPORT
+GST_API
void gst_message_parse_structure_change (GstMessage *message, GstStructureChangeType *type,
GstElement **owner, gboolean *busy);
/* STREAM STATUS */
-GST_EXPORT
+GST_API
GstMessage * gst_message_new_stream_status (GstObject * src, GstStreamStatusType type,
GstElement *owner) G_GNUC_MALLOC;
-GST_EXPORT
+GST_API
void gst_message_parse_stream_status (GstMessage *message, GstStreamStatusType *type,
GstElement **owner);
-GST_EXPORT
+GST_API
void gst_message_set_stream_status_object (GstMessage *message, const GValue *object);
-GST_EXPORT
+GST_API
const GValue * gst_message_get_stream_status_object (GstMessage *message);
/* REQUEST_STATE */
-GST_EXPORT
+GST_API
GstMessage * gst_message_new_request_state (GstObject * src, GstState state) G_GNUC_MALLOC;
-GST_EXPORT
+GST_API
void gst_message_parse_request_state (GstMessage * message, GstState *state);
/* STEP_START */
-GST_EXPORT
+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_EXPORT
+GST_API
void gst_message_parse_step_start (GstMessage * message, gboolean *active, GstFormat *format,
guint64 *amount, gdouble *rate, gboolean *flush,
gboolean *intermediate);
/* QOS */
-GST_EXPORT
+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_EXPORT
+GST_API
void gst_message_set_qos_values (GstMessage * message, gint64 jitter, gdouble proportion,
gint quality);
-GST_EXPORT
+GST_API
void gst_message_set_qos_stats (GstMessage * message, GstFormat format, guint64 processed,
guint64 dropped);
-GST_EXPORT
+GST_API
void gst_message_parse_qos (GstMessage * message, gboolean * live, guint64 * running_time,
guint64 * stream_time, guint64 * timestamp, guint64 * duration);
-GST_EXPORT
+GST_API
void gst_message_parse_qos_values (GstMessage * message, gint64 * jitter, gdouble * proportion,
gint * quality);
-GST_EXPORT
+GST_API
void gst_message_parse_qos_stats (GstMessage * message, GstFormat * format, guint64 * processed,
guint64 * dropped);
/* PROGRESS */
-GST_EXPORT
+GST_API
GstMessage * gst_message_new_progress (GstObject * src, GstProgressType type, const gchar *code,
const gchar *text) G_GNUC_MALLOC;
-GST_EXPORT
+GST_API
void gst_message_parse_progress (GstMessage * message, GstProgressType * type, gchar ** code,
gchar ** text);
/* TOC */
-GST_EXPORT
+GST_API
GstMessage * gst_message_new_toc (GstObject *src, GstToc *toc, gboolean updated);
-GST_EXPORT
+GST_API
void gst_message_parse_toc (GstMessage *message, GstToc **toc, gboolean *updated);
/* RESET_TIME */
-GST_EXPORT
+GST_API
GstMessage * gst_message_new_reset_time (GstObject * src, GstClockTime running_time) G_GNUC_MALLOC;
-GST_EXPORT
+GST_API
void gst_message_parse_reset_time (GstMessage *message, GstClockTime *running_time);
/* STREAM_START */
-GST_EXPORT
+GST_API
GstMessage * gst_message_new_stream_start (GstObject * src) G_GNUC_MALLOC;
-GST_EXPORT
+GST_API
void gst_message_set_group_id (GstMessage *message, guint group_id);
-GST_EXPORT
+GST_API
gboolean gst_message_parse_group_id (GstMessage *message, guint *group_id);
/* NEED_CONTEXT */
-GST_EXPORT
+GST_API
GstMessage * gst_message_new_need_context (GstObject * src, const gchar * context_type) G_GNUC_MALLOC;
-GST_EXPORT
+GST_API
gboolean gst_message_parse_context_type (GstMessage * message, const gchar ** context_type);
/* HAVE_CONTEXT */
-GST_EXPORT
+GST_API
GstMessage * gst_message_new_have_context (GstObject * src, GstContext *context) G_GNUC_MALLOC;
-GST_EXPORT
+GST_API
void gst_message_parse_have_context (GstMessage *message, GstContext **context);
/* DEVICE_ADDED */
-GST_EXPORT
+GST_API
GstMessage * gst_message_new_device_added (GstObject * src, GstDevice * device) G_GNUC_MALLOC;
-GST_EXPORT
+GST_API
void gst_message_parse_device_added (GstMessage * message, GstDevice ** device);
/* DEVICE_REMOVED */
-GST_EXPORT
+GST_API
GstMessage * gst_message_new_device_removed (GstObject * src, GstDevice * device) G_GNUC_MALLOC;
-GST_EXPORT
+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_EXPORT
+GST_API
GstMessage * gst_message_new_property_notify (GstObject * src, const gchar * property_name, GValue * val) G_GNUC_MALLOC;
-GST_EXPORT
+GST_API
void gst_message_parse_property_notify (GstMessage * message, GstObject ** object, const gchar ** property_name, const GValue ** property_value);
/* STREAM_COLLECTION */
-GST_EXPORT
+GST_API
GstMessage * gst_message_new_stream_collection (GstObject * src, GstStreamCollection * collection) G_GNUC_MALLOC;
-GST_EXPORT
+GST_API
void gst_message_parse_stream_collection (GstMessage *message, GstStreamCollection **collection);
/* STREAMS_SELECTED */
-GST_EXPORT
+GST_API
GstMessage * gst_message_new_streams_selected (GstObject *src, GstStreamCollection *collection);
-GST_EXPORT
+GST_API
void gst_message_streams_selected_add (GstMessage *message, GstStream *stream);
-GST_EXPORT
+GST_API
void gst_message_parse_streams_selected (GstMessage * message, GstStreamCollection **collection);
-GST_EXPORT
+GST_API
guint gst_message_streams_selected_get_size (GstMessage * message);
-GST_EXPORT
+GST_API
GstStream *gst_message_streams_selected_get_stream (GstMessage *message, guint idx);
/* REDIRECT */
-GST_EXPORT
+GST_API
GstMessage * gst_message_new_redirect (GstObject * src, const gchar * location, GstTagList * tag_list, const GstStructure * entry_struct) G_GNUC_MALLOC;
-GST_EXPORT
+GST_API
void gst_message_add_redirect_entry (GstMessage * message, const gchar * location, GstTagList * tag_list, const GstStructure * entry_struct);
-GST_EXPORT
+GST_API
void gst_message_parse_redirect_entry (GstMessage * message, gsize entry_index, const gchar ** location, GstTagList ** tag_list, const GstStructure ** entry_struct);
-GST_EXPORT
+GST_API
gsize gst_message_get_num_redirect_entries (GstMessage * message);
#ifdef G_DEFINE_AUTOPTR_CLEANUP_FUNC