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GstMessage: Add STREAM_STATUS message methods
Add methods to handle the stream_status message types.
This commit is contained in:
Wim Taymans
Wim Taymans
parent
81c0840ab0
commit
e72efeccd1
4 changed files with 159 additions and 1 deletions
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@ -1043,7 +1043,6 @@ gst_iterator_result_get_type
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<TITLE>GstMessage</TITLE>
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GstMessage
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GstMessageType
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GstStructureChangeType
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GST_MESSAGE_SRC
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GST_MESSAGE_TIMESTAMP
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GST_MESSAGE_TYPE
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@ -1094,10 +1093,19 @@ gst_message_new_latency
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gst_message_new_async_start
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gst_message_parse_async_start
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gst_message_new_async_done
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GstStructureChangeType
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gst_message_new_structure_change
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gst_message_parse_structure_change
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gst_message_new_request_state
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gst_message_parse_request_state
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GstStreamStatusType
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gst_message_new_stream_status
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gst_message_parse_stream_status
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gst_message_set_stream_status_object
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gst_message_get_stream_status_object
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<SUBSECTION Standard>
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GstMessageClass
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GST_MESSAGE
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@ -1109,10 +1117,12 @@ GST_IS_MESSAGE_CLASS
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GST_MESSAGE_GET_CLASS
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GST_TYPE_MESSAGE_TYPE
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GST_TYPE_STRUCTURE_CHANGE_TYPE
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GST_TYPE_STREAM_STATUS_TYPE
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<SUBSECTION Private>
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gst_message_get_type
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gst_message_type_get_type
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gst_structure_change_type_get_type
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gst_stream_status_type_get_type
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GST_MESSAGE_COND
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GST_MESSAGE_GET_LOCK
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GST_MESSAGE_LOCK
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109
gst/gstmessage.c
109
gst/gstmessage.c
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@ -1458,3 +1458,112 @@ gst_message_parse_request_state (GstMessage * message, GstState * state)
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*state = g_value_get_enum (gst_structure_id_get_value (message->structure,
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GST_QUARK (NEW_STATE)));
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}
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/**
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* gst_message_new_stream_status:
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* @src: The object originating the message.
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* @type: The stream status type.
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* @owner: The owner element of @src.
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*
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* Create a new stream status message. This message is posted when a streaming
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* thread is created/destroyed or when the state changed.
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*
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* Returns: The new stream status message.
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*
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* MT safe.
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*
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* Since: 0.10.24.
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*/
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GstMessage *
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gst_message_new_stream_status (GstObject * src, GstStreamStatusType type,
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GstElement * owner)
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{
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GstMessage *message;
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GstStructure *structure;
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structure = gst_structure_empty_new ("GstMessageStreamStatus");
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gst_structure_id_set (structure,
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GST_QUARK (TYPE), GST_TYPE_STREAM_STATUS_TYPE, (gint) type,
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GST_QUARK (OWNER), GST_TYPE_ELEMENT, owner, NULL);
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message = gst_message_new_custom (GST_MESSAGE_STREAM_STATUS, src, structure);
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return message;
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}
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/**
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* gst_message_parse_stream_status:
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* @message: A valid #GstMessage of type GST_MESSAGE_STREAM_STATUS.
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* @type: A pointer to hold the status type
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* @owner: The owner element of the message source
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*
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* Extracts the stream status type and owner the GstMessage.
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*
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* Since: 0.10.24.
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*
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* MT safe.
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*/
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void
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gst_message_parse_stream_status (GstMessage * message,
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GstStreamStatusType * type, GstElement ** owner)
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{
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const GValue *owner_gvalue;
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g_return_if_fail (GST_IS_MESSAGE (message));
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g_return_if_fail (GST_MESSAGE_TYPE (message) == GST_MESSAGE_STREAM_STATUS);
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owner_gvalue =
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gst_structure_id_get_value (message->structure, GST_QUARK (OWNER));
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g_return_if_fail (owner_gvalue != NULL);
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if (type)
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*type = g_value_get_enum (gst_structure_id_get_value (message->structure,
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GST_QUARK (TYPE)));
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if (owner)
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*owner = (GstElement *) g_value_get_object (owner_gvalue);
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}
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/**
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* gst_message_set_stream_status_object:
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* @message: A valid #GstMessage of type GST_MESSAGE_STREAM_STATUS.
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* @object: the object controlling the streaming
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*
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* Configures the object handling the streaming thread. This is usually a
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* GstTask object but other objects might be added in the future.
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*
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* Since: 0.10.24
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*/
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void
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gst_message_set_stream_status_object (GstMessage * message,
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const GValue * object)
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{
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g_return_if_fail (GST_IS_MESSAGE (message));
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g_return_if_fail (GST_MESSAGE_TYPE (message) == GST_MESSAGE_STREAM_STATUS);
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gst_structure_id_set_value (message->structure, GST_QUARK (OBJECT), object);
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}
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/**
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* gst_message_get_stream_status_object:
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* @message: A valid #GstMessage of type GST_MESSAGE_STREAM_STATUS.
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*
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* Extracts the object managing the streaming thread from @message.
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*
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* Returns: a GValue containing the object that manages the streaming thread.
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* This object is usually of type GstTask but other types can be added in the
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* future. The object remains valid as long as @message is valid.
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*
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* Since: 0.10.24
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*/
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const GValue *
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gst_message_get_stream_status_object (GstMessage * message)
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{
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const GValue *result;
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g_return_val_if_fail (GST_IS_MESSAGE (message), NULL);
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g_return_val_if_fail (GST_MESSAGE_TYPE (message) == GST_MESSAGE_STREAM_STATUS,
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NULL);
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result = gst_structure_id_get_value (message->structure, GST_QUARK (OBJECT));
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return result;
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}
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@ -197,6 +197,32 @@ typedef enum {
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GST_STRUCTURE_CHANGE_TYPE_PAD_UNLINK = 1
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} GstStructureChangeType;
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/**
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* GstStreamStatusType:
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* @GST_STREAM_STATUS_TYPE_CREATE: A new thread need to be created.
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* @GST_STREAM_STATUS_TYPE_ENTER: a thread entered its loop function
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* @GST_STREAM_STATUS_TYPE_LEAVE: a thread left its loop function
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* @GST_STREAM_STATUS_TYPE_DESTROY: a thread is destroyed
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* @GST_STREAM_STATUS_TYPE_START: a thread is started
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* @GST_STREAM_STATUS_TYPE_PAUSE: a thread is paused
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* @GST_STREAM_STATUS_TYPE_STOP: a thread is stopped
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*
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* The type of a #GstMessageStreamStatus. The stream status messages inform the
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* application of new streaming threads and their status.
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*
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* Since: 0.10.24
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*/
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typedef enum {
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GST_STREAM_STATUS_TYPE_CREATE = 0,
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GST_STREAM_STATUS_TYPE_ENTER = 1,
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GST_STREAM_STATUS_TYPE_LEAVE = 2,
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GST_STREAM_STATUS_TYPE_DESTROY = 3,
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GST_STREAM_STATUS_TYPE_START = 8,
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GST_STREAM_STATUS_TYPE_PAUSE = 9,
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GST_STREAM_STATUS_TYPE_STOP = 10
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} GstStreamStatusType;
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/**
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* GstMessage:
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* @mini_object: the parent structure
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@ -405,6 +431,14 @@ GstMessage * gst_message_new_structure_change (GstObject * src, GstStructureCh
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void gst_message_parse_structure_change (GstMessage *message, GstStructureChangeType *type,
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GstElement **owner, gboolean *busy);
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/* STREAM STATUS */
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GstMessage * gst_message_new_stream_status (GstObject * src, GstStreamStatusType type,
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GstElement *owner);
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void gst_message_parse_stream_status (GstMessage *message, GstStreamStatusType *type,
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GstElement **owner);
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void gst_message_set_stream_status_object (GstMessage *message, const GValue *object);
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const GValue * gst_message_get_stream_status_object (GstMessage *message);
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/* REQUEST_STATE */
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GstMessage * gst_message_new_request_state (GstObject * src, GstState state);
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void gst_message_parse_request_state (GstMessage * message, GstState *state);
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@ -446,6 +446,7 @@ EXPORTS
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gst_marshal_VOID__POINTER_OBJECT
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gst_marshal_VOID__UINT_BOXED
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gst_message_get_seqnum
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gst_message_get_stream_status_object
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gst_message_get_structure
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gst_message_get_type
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gst_message_new_application
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@ -467,6 +468,7 @@ EXPORTS
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gst_message_new_segment_start
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gst_message_new_state_changed
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gst_message_new_state_dirty
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gst_message_new_stream_status
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gst_message_new_structure_change
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gst_message_new_tag
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gst_message_new_warning
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@ -483,11 +485,13 @@ EXPORTS
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gst_message_parse_segment_done
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gst_message_parse_segment_start
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gst_message_parse_state_changed
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gst_message_parse_stream_status
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gst_message_parse_structure_change
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gst_message_parse_tag
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gst_message_parse_warning
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gst_message_set_buffering_stats
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gst_message_set_seqnum
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gst_message_set_stream_status_object
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gst_message_type_get_name
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gst_message_type_get_type
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gst_message_type_to_quark
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@ -815,6 +819,7 @@ EXPORTS
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gst_static_pad_template_get_type
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gst_stream_error_get_type
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gst_stream_error_quark
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gst_stream_status_type_get_type
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gst_structure_change_type_get_type
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gst_structure_copy
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gst_structure_empty_new
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