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introspection: add missing (nullable) annotations to return values

Browse source 
Support for (nullable) was added to G-I at the same time as nullable
return values.  Previous versions of G-I will not mark return values as
nullable, even when an (allow-none) annotation is present, so it is
not necessary to add (allow-none) annotations for compatibility with
older versions of G-I.

https://bugzilla.gnome.org/show_bug.cgi?id=730957
This commit is contained in:
Evan Nemerson 2014-06-11 15:21:34 -07:00 committed by Sebastian Dröge
parent eebff7b048
commit 2759882379
41 changed files with 274 additions and 210 deletions
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5
gst/gstallocator.c
View file

@ -221,8 +221,9 @@ gst_allocator_register (const gchar * name, GstAllocator * allocator)
* Find a previously registered allocator with @name. When @name is %NULL, the
* default allocator will be returned.
*
* Returns: (transfer full): a #GstAllocator or %NULL when the allocator with @name was not
* registered. Use gst_object_unref() to release the allocator after usage.
* Returns: (transfer full) (nullable): a #GstAllocator or %NULL when
* the allocator with @name was not registered. Use gst_object_unref()
* to release the allocator after usage.
*/
GstAllocator *
gst_allocator_find (const gchar * name)

4
gst/gstatomicqueue.c
View file

@ -214,8 +214,8 @@ gst_atomic_queue_unref (GstAtomicQueue * queue)
*
* Peek the head element of the queue without removing it from the queue.
*
* Returns: (transfer none): the head element of @queue or %NULL when
* the queue is empty.
* Returns: (transfer none) (nullable): the head element of @queue or
* %NULL when the queue is empty.
*/
gpointer
gst_atomic_queue_peek (GstAtomicQueue * queue)

26
gst/gstbin.c
View file

@ -1633,7 +1633,8 @@ no_function:
*
* MT safe. Caller owns returned value.
*
* Returns: (transfer full): a #GstIterator of #GstElement, or %NULL
* Returns: (transfer full) (nullable): a #GstIterator of #GstElement,
* or %NULL
*/
GstIterator *
gst_bin_iterate_elements (GstBin * bin)
@ -1673,7 +1674,8 @@ iterate_child_recurse (GstIterator * it, const GValue * item)
*
* MT safe. Caller owns returned value.
*
* Returns: (transfer full): a #GstIterator of #GstElement, or %NULL
* Returns: (transfer full) (nullable): a #GstIterator of #GstElement,
* or %NULL
*/
GstIterator *
gst_bin_iterate_recurse (GstBin * bin)
@ -1730,7 +1732,8 @@ sink_iterator_filter (const GValue * vchild, GValue * vbin)
*
* MT safe. Caller owns returned value.
*
* Returns: (transfer full): a #GstIterator of #GstElement, or %NULL
* Returns: (transfer full) (nullable): a #GstIterator of #GstElement,
* or %NULL
*/
GstIterator *
gst_bin_iterate_sinks (GstBin * bin)
@ -1790,7 +1793,8 @@ src_iterator_filter (const GValue * vchild, GValue * vbin)
*
* MT safe. Caller owns returned value.
*
* Returns: (transfer full): a #GstIterator of #GstElement, or %NULL
* Returns: (transfer full) (nullable): a #GstIterator of #GstElement,
* or %NULL
*/
GstIterator *
gst_bin_iterate_sources (GstBin * bin)
@ -2166,7 +2170,8 @@ gst_bin_sort_iterator_new (GstBin * bin)
*
* MT safe. Caller owns returned value.
*
* Returns: (transfer full): a #GstIterator of #GstElement, or %NULL
* Returns: (transfer full) (nullable): a #GstIterator of #GstElement,
* or %NULL
*/
GstIterator *
gst_bin_iterate_sorted (GstBin * bin)
@ -4126,7 +4131,8 @@ compare_name (const GValue * velement, const gchar * name)
*
* MT safe. Caller owns returned reference.
*
* Returns: (transfer full): the #GstElement with the given name, or %NULL
* Returns: (transfer full) (nullable): the #GstElement with the given
* name, or %NULL
*/
GstElement *
gst_bin_get_by_name (GstBin * bin, const gchar * name)
@ -4169,7 +4175,8 @@ gst_bin_get_by_name (GstBin * bin, const gchar * name)
*
* MT safe. Caller owns returned reference.
*
* Returns: (transfer full): the #GstElement with the given name, or %NULL
* Returns: (transfer full) (nullable): the #GstElement with the given
* name, or %NULL
*/
GstElement *
gst_bin_get_by_name_recurse_up (GstBin * bin, const gchar * name)
@ -4269,8 +4276,9 @@ gst_bin_get_by_interface (GstBin * bin, GType iface)
*
* MT safe. Caller owns returned value.
*
* Returns: (transfer full): a #GstIterator of #GstElement for all elements
* in the bin implementing the given interface, or %NULL
* Returns: (transfer full) (nullable): a #GstIterator of #GstElement
* for all elements in the bin implementing the given interface,
* or %NULL
*/
GstIterator *
gst_bin_iterate_all_by_interface (GstBin * bin, GType iface)

11
gst/gstbuffer.c
View file

@ -650,8 +650,8 @@ gst_buffer_new (void)
*
* MT safe.
*
* Returns: (transfer full): a new #GstBuffer, or %NULL if the memory couldn't
* be allocated.
* Returns: (transfer full) (nullable): a new #GstBuffer, or %NULL if
* the memory couldn't be allocated.
*/
GstBuffer *
gst_buffer_new_allocate (GstAllocator * allocator, gsize size,
@ -1934,7 +1934,8 @@ gst_buffer_append_region (GstBuffer * buf1, GstBuffer * buf2, gssize offset,
* Get the metadata for @api on buffer. When there is no such
* metadata, %NULL is returned.
*
* Returns: (transfer none): the metadata for @api on @buffer.
* Returns: (transfer none) (nullable): the metadata for @api on
* @buffer.
*/
GstMeta *
gst_buffer_get_meta (GstBuffer * buffer, GType api)
@ -2063,8 +2064,8 @@ gst_buffer_remove_meta (GstBuffer * buffer, GstMeta * meta)
*
* @state will be updated with an opaque state pointer
*
* Returns: (transfer none): The next #GstMeta or %NULL when there are
* no more items.
* Returns: (transfer none) (nullable): The next #GstMeta or %NULL
* when there are no more items.
*/
GstMeta *
gst_buffer_iterate_meta (GstBuffer * buffer, gpointer * state)

5
gst/gstbufferlist.c
View file

@ -227,8 +227,9 @@ gst_buffer_list_foreach (GstBufferList * list, GstBufferListFunc func,
*
* Get the buffer at @idx.
*
* Returns: (transfer none): the buffer at @idx in @group or %NULL when there
* is no buffer. The buffer remains valid as long as @list is valid.
* Returns: (transfer none) (nullable): the buffer at @idx in @group
* or %NULL when there is no buffer. The buffer remains valid as
* long as @list is valid.
*/
GstBuffer *
gst_buffer_list_get (GstBufferList * list, guint idx)

43
gst/gstbus.c
View file

@ -467,10 +467,11 @@ gst_bus_set_flushing (GstBus * bus, gboolean flushing)
* @timeout is #GST_CLOCK_TIME_NONE, this function will block forever until a
* matching message was posted on the bus.
*
* Returns: (transfer full): a #GstMessage matching the filter in @types,
* or %NULL if no matching message was found on the bus until the timeout
* expired. The message is taken from the bus and needs to be unreffed
* with gst_message_unref() after usage.
* Returns: (transfer full) (nullable): a #GstMessage matching the
* filter in @types, or %NULL if no matching message was found on
* the bus until the timeout expired. The message is taken from
* the bus and needs to be unreffed with gst_message_unref() after
* usage.
*
* MT safe.
*/
@ -568,10 +569,10 @@ beach:
* #GST_CLOCK_TIME_NONE, this function will block forever until a message was
* posted on the bus.
*
* Returns: (transfer full): the #GstMessage that is on the bus after the
* specified timeout or %NULL if the bus is empty after the timeout expired.
* The message is taken from the bus and needs to be unreffed with
* gst_message_unref() after usage.
* Returns: (transfer full) (nullable): the #GstMessage that is on the
* bus after the specified timeout or %NULL if the bus is empty
* after the timeout expired. The message is taken from the bus
* and needs to be unreffed with gst_message_unref() after usage.
*
* MT safe.
*/
@ -594,10 +595,10 @@ gst_bus_timed_pop (GstBus * bus, GstClockTime timeout)
* the bus, all messages will be discarded. It is not possible to use message
* enums beyond #GST_MESSAGE_EXTENDED in the @events mask.
*
* Returns: (transfer full): the next #GstMessage matching @type that is on
* the bus, or %NULL if the bus is empty or there is no message matching
* @type. The message is taken from the bus and needs to be unreffed with
* gst_message_unref() after usage.
* Returns: (transfer full) (nullable): the next #GstMessage matching
* @type that is on the bus, or %NULL if the bus is empty or there
* is no message matching @type. The message is taken from the bus
* and needs to be unreffed with gst_message_unref() after usage.
*
* MT safe.
*/
@ -616,9 +617,10 @@ gst_bus_pop_filtered (GstBus * bus, GstMessageType types)
*
* Get a message from the bus.
*
* Returns: (transfer full): the #GstMessage that is on the bus, or %NULL if the
* bus is empty. The message is taken from the bus and needs to be unreffed
* with gst_message_unref() after usage.
* Returns: (transfer full) (nullable): the #GstMessage that is on the
* bus, or %NULL if the bus is empty. The message is taken from
* the bus and needs to be unreffed with gst_message_unref() after
* usage.
*
* MT safe.
*/
@ -638,8 +640,8 @@ gst_bus_pop (GstBus * bus)
* on the bus' message queue. A reference is returned, and needs to be unreffed
* by the caller.
*
* Returns: (transfer full): the #GstMessage that is on the bus, or %NULL if the
* bus is empty.
* Returns: (transfer full) (nullable): the #GstMessage that is on the
* bus, or %NULL if the bus is empty.
*
* MT safe.
*/
@ -1054,9 +1056,10 @@ poll_destroy_timeout (GstBusPollData * poll_data)
* better handled by setting up an asynchronous bus watch and doing things
* from there.
*
* Returns: (transfer full): the message that was received, or %NULL if the
* poll timed out. The message is taken from the bus and needs to be
* unreffed with gst_message_unref() after usage.
* Returns: (transfer full) (nullable): the message that was received,
* or %NULL if the poll timed out. The message is taken from the
* bus and needs to be unreffed with gst_message_unref() after
* usage.
*/
GstMessage *
gst_bus_poll (GstBus * bus, GstMessageType events, GstClockTime timeout)

5
gst/gstcapsfeatures.c
View file

@ -471,8 +471,9 @@ priv_gst_caps_features_append_to_gstring (const GstCapsFeatures * features,
*
* Free-function: gst_caps_features_free
*
* Returns: (transfer full): a new #GstCapsFeatures or %NULL when the string could
* not be parsed. Free with gst_caps_features_free() after use.
* Returns: (transfer full) (nullable): a new #GstCapsFeatures or
* %NULL when the string could not be parsed. Free with
* gst_caps_features_free() after use.
*
* Since: 1.2
*/

8
gst/gstchildproxy.c
View file

@ -108,8 +108,8 @@ gst_child_proxy_default_get_child_by_name (GstChildProxy * parent,
* together with gst_object_get_name(). If the interface is to be used with
* #GObjects, this methods needs to be overridden.
*
* Returns: (transfer full): the child object or %NULL if not found. Unref
* after usage.
* Returns: (transfer full) (nullable): the child object or %NULL if
* not found. Unref after usage.
*
* MT safe.
*/
@ -129,8 +129,8 @@ gst_child_proxy_get_child_by_name (GstChildProxy * parent, const gchar * name)
*
* Fetches a child by its number.
*
* Returns: (transfer full): the child object or %NULL if not found (index
* too high). Unref after usage.
* Returns: (transfer full) (nullable): the child object or %NULL if
* not found (index too high). Unref after usage.
*
* MT safe.
*/

5
gst/gstclock.c
View file

@ -1204,8 +1204,9 @@ not_supported:
* Get the master clock that @clock is slaved to or %NULL when the clock is
* not slaved to any master clock.
*
* Returns: (transfer full): a master #GstClock or %NULL when this clock is
* not slaved to a master clock. Unref after usage.
* Returns: (transfer full) (nullable): a master #GstClock or %NULL
* when this clock is not slaved to a master clock. Unref after
* usage.
*
* MT safe.
*/

4
gst/gstcontrolbinding.c
View file

@ -259,8 +259,8 @@ gst_control_binding_sync_values (GstControlBinding * binding,
*
* Gets the value for the given controlled property at the requested time.
*
* Returns: the GValue of the property at the given time, or %NULL if the
* property isn't controlled.
* Returns: (nullable): the GValue of the property at the given time,
* or %NULL if the property isn't controlled.
*/
GValue *
gst_control_binding_get_value (GstControlBinding * binding,

16
gst/gstdatetime.c
View file

@ -76,7 +76,8 @@ static void gst_date_time_free (GstDateTime * datetime);
*
* Free-function: gst_date_time_unref
*
* Returns: (transfer full): a newly created #GstDateTime, or %NULL on error
* Returns: (transfer full) (nullable): a newly created #GstDateTime,
* or %NULL on error
*/
GstDateTime *
gst_date_time_new_from_g_date_time (GDateTime * dt)
@ -104,7 +105,8 @@ gst_date_time_new_from_g_date_time (GDateTime * dt)
*
* Free-function: g_date_time_unref
*
* Returns: (transfer full): a newly created #GDateTime, or %NULL on error
* Returns: (transfer full) (nullable): a newly created #GDateTime, or
* %NULL on error
*/
GDateTime *
gst_date_time_to_g_date_time (GstDateTime * datetime)
@ -725,9 +727,10 @@ done:
* are (for example): 2012, 2012-06, 2012-06-23, 2012-06-23T23:30Z,
* 2012-06-23T23:30+0100, 2012-06-23T23:30:59Z, 2012-06-23T23:30:59+0100
*
* Returns: a newly allocated string formatted according to ISO 8601 and
* only including the datetime fields that are valid, or %NULL in case
* there was an error. The string should be freed with g_free().
* Returns: (nullable): a newly allocated string formatted according
* to ISO 8601 and only including the datetime fields that are
* valid, or %NULL in case there was an error. The string should
* be freed with g_free().
*/
gchar *
gst_date_time_to_iso8601_string (GstDateTime * datetime)
@ -749,7 +752,8 @@ gst_date_time_to_iso8601_string (GstDateTime * datetime)
*
* Free-function: gst_date_time_unref
*
* Returns: (transfer full): a newly created #GstDateTime, or %NULL on error
* Returns: (transfer full) (nullable): a newly created #GstDateTime,
* or %NULL on error
*/
GstDateTime *
gst_date_time_new_from_iso8601_string (const gchar * string)

17
gst/gstdevicemonitorfactory.c
View file

@ -105,7 +105,8 @@ gst_device_monitor_factory_finalize (GObject * object)
* Search for an device monitor factory of the given name. Refs the returned
* device monitor factory; caller is responsible for unreffing.
*
* Returns: (transfer full): #GstDeviceMonitorFactory if found, %NULL otherwise
* Returns: (transfer full) (nullable): #GstDeviceMonitorFactory if
* found, %NULL otherwise
*
* Since: 1.4
*/
@ -244,8 +245,8 @@ detailserror:
* Returns the device monitor of the type defined by the given device
* monitorfactory.
*
* Returns: (transfer full): the #GstDeviceMonitor or %NULL if the
* device monitor couldn't be created
* Returns: (transfer full) (nullable): the #GstDeviceMonitor or %NULL
* if the device monitor couldn't be created
*
* Since: 1.4
*/
@ -336,8 +337,8 @@ no_device_monitor:
* Returns the device monitor of the type defined by the given device
* monitor factory.
*
* Returns: (transfer full): a #GstDeviceMonitor or %NULL if unable to
* create device monitor
* Returns: (transfer full) (nullable): a #GstDeviceMonitor or %NULL
* if unable to create device monitor
*
* Since: 1.4
*/
@ -407,8 +408,8 @@ gst_device_monitor_factory_get_device_monitor_type (GstDeviceMonitorFactory *
*
* Get the metadata on @factory with @key.
*
* Returns: the metadata with @key on @factory or %NULL when there was no
* metadata with the given @key.
* Returns: (nullable): the metadata with @key on @factory or %NULL
* when there was no metadata with the given @key.
*
* Since: 1.4
*/
@ -425,7 +426,7 @@ gst_device_monitor_factory_get_metadata (GstDeviceMonitorFactory * factory,
*
* Get the available keys for the metadata on @factory.
*
* Returns: (transfer full) (element-type utf8) (array zero-terminated=1):
* Returns: (transfer full) (element-type utf8) (array zero-terminated=1) (nullable):
* a %NULL-terminated array of key strings, or %NULL when there is no
* metadata. Free with g_strfreev() when no longer needed.
*

29
gst/gstelement.c
View file

@ -342,8 +342,8 @@ gst_element_release_request_pad (GstElement * element, GstPad * pad)
* <note>An element is only required to provide a clock in the PAUSED
* state. Some elements can provide a clock in other states.</note>
*
* Returns: (transfer full): the GstClock provided by the element or %NULL
* if no clock could be provided. Unref after usage.
* Returns: (transfer full) (nullable): the GstClock provided by the
* element or %NULL if no clock could be provided. Unref after usage.
*
* MT safe.
*/
@ -583,8 +583,8 @@ gst_element_set_index (GstElement * element, GstIndex * index)
*
* Gets the index from the element.
*
* Returns: (transfer full): a #GstIndex or %NULL when no index was set on the
* element. unref after usage.
* Returns: (transfer full) (nullable): a #GstIndex or %NULL when no
* index was set on the element. unref after usage.
*
* MT safe.
*/
@ -865,8 +865,8 @@ pad_compare_name (GstPad * pad1, const gchar * name)
* Retrieves a pad from @element by name. This version only retrieves
* already-existing (i.e. 'static') pads.
*
* Returns: (transfer full): the requested #GstPad if found, otherwise %NULL.
* unref after usage.
* Returns: (transfer full) (nullable): the requested #GstPad if
* found, otherwise %NULL. unref after usage.
*
* MT safe.
*/
@ -978,8 +978,8 @@ _gst_element_request_pad (GstElement * element, GstPadTemplate * templ,
* This method is slow and will be deprecated in the future. New code should
* use gst_element_request_pad() with the requested template.
*
* Returns: (transfer full): requested #GstPad if found, otherwise %NULL.
* Release after usage.
* Returns: (transfer full) (nullable): requested #GstPad if found,
* otherwise %NULL. Release after usage.
*/
GstPad *
gst_element_get_request_pad (GstElement * element, const gchar * name)
@ -1083,8 +1083,8 @@ gst_element_get_request_pad (GstElement * element, const gchar * name)
*
* The pad should be released with gst_element_release_request_pad().
*
* Returns: (transfer full): requested #GstPad if found, otherwise %NULL.
* Release after usage.
* Returns: (transfer full) (nullable): requested #GstPad if found,
* otherwise %NULL. Release after usage.
*/
GstPad *
gst_element_request_pad (GstElement * element,
@ -1396,8 +1396,9 @@ gst_element_class_get_pad_template_list (GstElementClass * element_class)
* that has subclasses, make sure to pass the g_class parameter of the
* #GInstanceInitFunc here.</note>
*
* Returns: (transfer none): the #GstPadTemplate with the given name, or %NULL
* if none was found. No unreferencing is necessary.
* Returns: (transfer none) (nullable): the #GstPadTemplate with the
* given name, or %NULL if none was found. No unreferencing is
* necessary.
*/
GstPadTemplate *
gst_element_class_get_pad_template (GstElementClass *
@ -1734,8 +1735,8 @@ gst_element_post_message (GstElement * element, GstMessage * message)
*
* This function is only used internally by the gst_element_error() macro.
*
* Returns: (transfer full): a newly allocated string, or %NULL if the format
* was %NULL or ""
* Returns: (transfer full) (nullable): a newly allocated string, or
* %NULL if the format was %NULL or ""
*
* MT safe.
*/

3
gst/gstelement.h
View file

@ -694,7 +694,8 @@ GType gst_element_get_type (void);
* For a nameless element, this returns %NULL, which you can safely g_free()
* as well.
*
* Returns: (transfer full): the name of @elem. g_free() after usage. MT safe.
* Returns: (transfer full) (nullable): the name of @elem. g_free()
* after usage. MT safe.
*
*/
#define gst_element_get_name(elem) gst_object_get_name(GST_OBJECT_CAST(elem))

16
gst/gstelementfactory.c
View file

@ -123,7 +123,8 @@ gst_element_factory_finalize (GObject * object)
* Search for an element factory of the given name. Refs the returned
* element factory; caller is responsible for unreffing.
*
* Returns: (transfer full): #GstElementFactory if found, %NULL otherwise
* Returns: (transfer full) (nullable): #GstElementFactory if found,
* %NULL otherwise
*/
GstElementFactory *
gst_element_factory_find (const gchar * name)
@ -335,8 +336,8 @@ detailserror:
* It will be given the name supplied, since all elements require a name as
* their first argument.
*
* Returns: (transfer floating): new #GstElement or %NULL if the element couldn't
* be created
* Returns: (transfer floating) (nullable): new #GstElement or %NULL
* if the element couldn't be created
*/
GstElement *
gst_element_factory_create (GstElementFactory * factory, const gchar * name)
@ -422,7 +423,8 @@ no_element:
* consisting of the element factory name and a number.
* If name is given, it will be given the name supplied.
*
* Returns: (transfer floating): new #GstElement or %NULL if unable to create element
* Returns: (transfer floating) (nullable): new #GstElement or %NULL
* if unable to create element
*/
GstElement *
gst_element_factory_make (const gchar * factoryname, const gchar * name)
@ -500,8 +502,8 @@ gst_element_factory_get_element_type (GstElementFactory * factory)
*
* Get the metadata on @factory with @key.
*
* Returns: the metadata with @key on @factory or %NULL when there was no
* metadata with the given @key.
* Returns: (nullable): the metadata with @key on @factory or %NULL
* when there was no metadata with the given @key.
*/
const gchar *
gst_element_factory_get_metadata (GstElementFactory * factory,
@ -516,7 +518,7 @@ gst_element_factory_get_metadata (GstElementFactory * factory,
*
* Get the available keys for the metadata on @factory.
*
* Returns: (transfer full) (element-type utf8) (array zero-terminated=1):
* Returns: (transfer full) (element-type utf8) (array zero-terminated=1) (nullable):
* a %NULL-terminated array of key strings, or %NULL when there is no
* metadata. Free with g_strfreev() when no longer needed.
*/

7
gst/gstformat.c
View file

@ -85,8 +85,8 @@ _priv_gst_format_initialize (void)
*
* Get a printable name for the given format. Do not modify or free.
*
* Returns: a reference to the static name of the format or %NULL if
* the format is unknown.
* Returns: (nullable): a reference to the static name of the format
* or %NULL if the format is unknown.
*/
const gchar *
gst_format_get_name (GstFormat format)
@ -225,7 +225,8 @@ gst_formats_contains (const GstFormat * formats, GstFormat format)
*
* Get details about the given format.
*
* Returns: The #GstFormatDefinition for @format or %NULL on failure.
* Returns: (nullable): The #GstFormatDefinition for @format or %NULL
* on failure.
*
* MT safe.
*/

25
gst/gstghostpad.c
View file

@ -79,8 +79,8 @@ static GstPad *gst_proxy_pad_get_target (GstPad * pad);
*
* Invoke the default iterate internal links function of the proxy pad.
*
* Returns: a #GstIterator of #GstPad, or %NULL if @pad has no parent. Unref each
* returned pad with gst_object_unref().
* Returns: (nullable): a #GstIterator of #GstPad, or %NULL if @pad
* has no parent. Unref each returned pad with gst_object_unref().
*/
GstIterator *
gst_proxy_pad_iterate_internal_links_default (GstPad * pad, GstObject * parent)
@ -208,8 +208,8 @@ gst_proxy_pad_get_target (GstPad * pad)
* The internal pad of a #GstGhostPad is the internally used
* pad of opposite direction, which is used to link to the target.
*
* Returns: (transfer full): the target #GstProxyPad, can be %NULL.
* Unref target pad after usage.
* Returns: (transfer full) (nullable): the target #GstProxyPad, can
* be %NULL. Unref target pad after usage.
*/
GstProxyPad *
gst_proxy_pad_get_internal (GstProxyPad * pad)
@ -653,7 +653,8 @@ construct_failed:
*
* The created ghostpad will not have a padtemplate.
*
* Returns: (transfer full): a new #GstPad, or %NULL in case of an error.
* Returns: (transfer full) (nullable): a new #GstPad, or %NULL in
* case of an error.
*/
GstPad *
gst_ghost_pad_new_no_target (const gchar * name, GstPadDirection dir)
@ -679,7 +680,8 @@ gst_ghost_pad_new_no_target (const gchar * name, GstPadDirection dir)
*
* Will ref the target.
*
* Returns: (transfer floating): a new #GstPad, or %NULL in case of an error.
* Returns: (transfer floating) (nullable): a new #GstPad, or %NULL in
* case of an error.
*/
GstPad *
gst_ghost_pad_new (const gchar * name, GstPad * target)
@ -719,7 +721,8 @@ set_target_failed:
*
* Will ref the target.
*
* Returns: (transfer full): a new #GstPad, or %NULL in case of an error.
* Returns: (transfer full) (nullable): a new #GstPad, or %NULL in
* case of an error.
*/
GstPad *
@ -761,7 +764,8 @@ set_target_failed:
* Create a new ghostpad based on @templ, without setting a target. The
* direction will be taken from the @templ.
*
* Returns: (transfer full): a new #GstPad, or %NULL in case of an error.
* Returns: (transfer full) (nullable): a new #GstPad, or %NULL in
* case of an error.
*/
GstPad *
gst_ghost_pad_new_no_target_from_template (const gchar * name,
@ -783,8 +787,9 @@ gst_ghost_pad_new_no_target_from_template (const gchar * name,
*
* Get the target pad of @gpad. Unref target pad after usage.
*
* Returns: (transfer full): the target #GstPad, can be %NULL if the ghostpad
* has no target set. Unref target pad after usage.
* Returns: (transfer full) (nullable): the target #GstPad, can be
* %NULL if the ghostpad has no target set. Unref target pad after
* usage.
*/
GstPad *
gst_ghost_pad_get_target (GstGhostPad * gpad)

4
gst/gstmemory.c
View file

@ -225,8 +225,8 @@ gst_memory_resize (GstMemory * mem, gssize offset, gsize size)
* This function takes ownership of old @mem and returns a reference to a new
* #GstMemory.
*
* Returns: (transfer full): a #GstMemory object mapped with @flags or %NULL when
* a mapping is not possible.
* Returns: (transfer full) (nullable): a #GstMemory object mapped
* with @flags or %NULL when a mapping is not possible.
*/
GstMemory *
gst_memory_make_mapped (GstMemory * mem, GstMapInfo * info, GstMapFlags flags)

4
gst/gstmeta.c
View file

@ -205,8 +205,8 @@ gst_meta_register (GType api, const gchar * impl, gsize size,
* Lookup a previously registered meta info structure by its implementation name
* @impl.
*
* Returns: (transfer none): a #GstMetaInfo with @impl, or %NULL when no such
* metainfo exists.
* Returns: (transfer none) (nullable): a #GstMetaInfo with @impl, or
* %NULL when no such metainfo exists.
*/
const GstMetaInfo *
gst_meta_get_info (const gchar * impl)

6
gst/gstminiobject.c
View file

@ -691,7 +691,8 @@ gst_mini_object_set_qdata (GstMiniObject * object, GQuark quark,
* This function gets back user data pointers stored via
* gst_mini_object_set_qdata().
*
* Returns: (transfer none): The user data pointer set, or %NULL
* Returns: (transfer none) (nullable): The user data pointer set, or
* %NULL
*/
gpointer
gst_mini_object_get_qdata (GstMiniObject * object, GQuark quark)
@ -721,7 +722,8 @@ gst_mini_object_get_qdata (GstMiniObject * object, GQuark quark)
* and removes the data from @object without invoking its destroy() function (if
* any was set).
*
* Returns: (transfer full): The user data pointer set, or %NULL
* Returns: (transfer full) (nullable): The user data pointer set, or
* %NULL
*/
gpointer
gst_mini_object_steal_qdata (GstMiniObject * object, GQuark quark)

19
gst/gstobject.c
View file

@ -649,7 +649,8 @@ had_parent:
*
* Free-function: g_free
*
* Returns: (transfer full): the name of @object. g_free() after usage.
* Returns: (transfer full) (nullable): the name of @object. g_free()
* after usage.
*
* MT safe. This function grabs and releases @object's LOCK.
*/
@ -724,8 +725,8 @@ had_parent:
* Returns the parent of @object. This function increases the refcount
* of the parent object so you should gst_object_unref() it after usage.
*
* Returns: (transfer full): parent of @object, this can be %NULL if @object
* has no parent. unref after usage.
* Returns: (transfer full) (nullable): parent of @object, this can be
* %NULL if @object has no parent. unref after usage.
*
* MT safe. Grabs and releases @object's LOCK.
*/
@ -992,8 +993,8 @@ gst_object_get_path_string (GstObject * object)
*
* Searches the list of properties under control.
*
* Returns: a #GstControlBinding or %NULL if the property is not being
* controlled.
* Returns: (nullable): a #GstControlBinding or %NULL if the property
* is not being controlled.
*/
static GstControlBinding *
gst_object_find_control_binding (GstObject * self, const gchar * name)
@ -1210,8 +1211,8 @@ gst_object_add_control_binding (GstObject * object, GstControlBinding * binding)
* Gets the corresponding #GstControlBinding for the property. This should be
* unreferenced again after use.
*
* Returns: (transfer full): the #GstControlBinding for @property_name or %NULL if
* the property is not controlled.
* Returns: (transfer full) (nullable): the #GstControlBinding for
* @property_name or %NULL if the property is not controlled.
*/
GstControlBinding *
gst_object_get_control_binding (GstObject * object, const gchar * property_name)
@ -1271,8 +1272,8 @@ gst_object_remove_control_binding (GstObject * object,
*
* Gets the value for the given controlled property at the requested time.
*
* Returns: the GValue of the property at the given time, or %NULL if the
* property isn't controlled.
* Returns: (nullable): the GValue of the property at the given time,
* or %NULL if the property isn't controlled.
*/
GValue *
gst_object_get_value (GstObject * object, const gchar * property_name,

36
gst/gstpad.c
View file

@ -774,7 +774,8 @@ gst_pad_get_property (GObject * object, guint prop_id,
* will be assigned.
* This function makes a copy of the name so you can safely free the name.
*
* Returns: (transfer floating): a new #GstPad, or %NULL in case of an error.
* Returns: (transfer floating) (nullable): a new #GstPad, or %NULL in
* case of an error.
*
* MT safe.
*/
@ -795,7 +796,8 @@ gst_pad_new (const gchar * name, GstPadDirection direction)
* will be assigned.
* This function makes a copy of the name so you can safely free the name.
*
* Returns: (transfer floating): a new #GstPad, or %NULL in case of an error.
* Returns: (transfer floating) (nullable): a new #GstPad, or %NULL in
* case of an error.
*/
GstPad *
gst_pad_new_from_template (GstPadTemplate * templ, const gchar * name)
@ -816,7 +818,8 @@ gst_pad_new_from_template (GstPadTemplate * templ, const gchar * name)
* will be assigned.
* This function makes a copy of the name so you can safely free the name.
*
* Returns: (transfer floating): a new #GstPad, or %NULL in case of an error.
* Returns: (transfer floating) (nullable): a new #GstPad, or %NULL in
* case of an error.
*/
GstPad *
gst_pad_new_from_static_template (GstStaticPadTemplate * templ,
@ -2458,9 +2461,9 @@ gst_pad_set_pad_template (GstPad * pad, GstPadTemplate * templ)
*
* Gets the template for @pad.
*
* Returns: (transfer full): the #GstPadTemplate from which this pad was
* instantiated, or %NULL if this pad has no template. Unref after
* usage.
* Returns: (transfer full) (nullable): the #GstPadTemplate from which
* this pad was instantiated, or %NULL if this pad has no
* template. Unref after usage.
*/
GstPadTemplate *
gst_pad_get_pad_template (GstPad * pad)
@ -2584,9 +2587,9 @@ gst_pad_get_peer (GstPad * pad)
* calling gst_pad_query_caps() on @pad and its peer. The caller owns a reference
* on the resulting caps.
*
* Returns: (transfer full): the allowed #GstCaps of the pad link. Unref the
* caps when you no longer need it. This function returns %NULL when @pad
* has no peer.
* Returns: (transfer full) (nullable): the allowed #GstCaps of the
* pad link. Unref the caps when you no longer need it. This
* function returns %NULL when @pad has no peer.
*
* MT safe.
*/
@ -2641,8 +2644,8 @@ no_peer:
*
* The caller must free this iterator after use with gst_iterator_free().
*
* Returns: a #GstIterator of #GstPad, or %NULL if @pad has no parent. Unref each
* returned pad with gst_object_unref().
* Returns: (nullable): a #GstIterator of #GstPad, or %NULL if @pad
* has no parent. Unref each returned pad with gst_object_unref().
*/
GstIterator *
gst_pad_iterate_internal_links_default (GstPad * pad, GstObject * parent)
@ -2707,9 +2710,9 @@ no_parent:
*
* Free-function: gst_iterator_free
*
* Returns: (transfer full): a new #GstIterator of #GstPad or %NULL when the
* pad does not have an iterator function configured. Use
* gst_iterator_free() after usage.
* Returns: (transfer full) (nullable): a new #GstIterator of #GstPad
* or %NULL when the pad does not have an iterator function
* configured. Use gst_iterator_free() after usage.
*/
GstIterator *
gst_pad_iterate_internal_links (GstPad * pad)
@ -5348,8 +5351,9 @@ gst_pad_get_element_private (GstPad * pad)
* Returns a new reference of the sticky event of type @event_type
* from the event.
*
* Returns: (transfer full): a #GstEvent of type @event_type or %NULL when no
* event of @event_type was on @pad. Unref after usage.
* Returns: (transfer full) (nullable): a #GstEvent of type
* @event_type or %NULL when no event of @event_type was on
* @pad. Unref after usage.
*/
GstEvent *
gst_pad_get_sticky_event (GstPad * pad, GstEventType event_type, guint idx)

2
gst/gstpad.h
View file

@ -1186,6 +1186,8 @@ GstPad* gst_pad_new_from_static_template (GstStaticPadTemplate *templ, const g
* Can return %NULL if the pad did not have a parent.
*
* MT safe.
*
* Returns: (nullable): the parent
*/
#define gst_pad_get_parent(pad) gst_object_get_parent (GST_OBJECT_CAST (pad))

6
gst/gstplugin.c
View file

@ -1006,7 +1006,8 @@ gst_plugin_get_origin (GstPlugin * plugin)
*
* There may be plugins that do not have a valid release date set on them.
*
* Returns: the date string of the plugin, or %NULL if not available.
* Returns: (nullable): the date string of the plugin, or %NULL if not
* available.
*/
const gchar *
gst_plugin_get_release_date_string (GstPlugin * plugin)
@ -1039,7 +1040,8 @@ gst_plugin_is_loaded (GstPlugin * plugin)
* Gets the plugin specific data cache. If it is %NULL there is no cached data
* stored. This is the case when the registry is getting rebuilt.
*
* Returns: (transfer none): The cached data as a #GstStructure or %NULL.
* Returns: (transfer none) (nullable): The cached data as a
* #GstStructure or %NULL.
*/
const GstStructure *
gst_plugin_get_cache_data (GstPlugin * plugin)

13
gst/gstpluginfeature.c
View file

@ -90,7 +90,8 @@ gst_plugin_feature_finalize (GObject * object)
* feature = loaded_feature;
* ]|
*
* Returns: (transfer full): a reference to the loaded feature, or %NULL on error
* Returns: (transfer full) (nullable): a reference to the loaded
* feature, or %NULL on error
*/
GstPluginFeature *
gst_plugin_feature_load (GstPluginFeature * feature)
@ -185,8 +186,9 @@ gst_plugin_feature_get_rank (GstPluginFeature * feature)
*
* Get the plugin that provides this feature.
*
* Returns: (transfer full): the plugin that provides this feature, or %NULL.
* Unref with gst_object_unref() when no longer needed.
* Returns: (transfer full) (nullable): the plugin that provides this
* feature, or %NULL. Unref with gst_object_unref() when no
* longer needed.
*/
GstPlugin *
gst_plugin_feature_get_plugin (GstPluginFeature * feature)
@ -205,8 +207,9 @@ gst_plugin_feature_get_plugin (GstPluginFeature * feature)
*
* Get the name of the plugin that provides this feature.
*
* Returns: the name of the plugin that provides this feature, or %NULL if
* the feature is not associated with a plugin.
* Returns: (nullable): the name of the plugin that provides this
* feature, or %NULL if the feature is not associated with a
* plugin.
*
* Since: 1.2
*/

2
gst/gstpluginfeature.h
View file

@ -75,7 +75,7 @@ typedef enum {
* Returns the name of @feature.
* For a nameless plugin feature, this returns %NULL.
*
* Returns: (transfer none): the name of @feature. MT safe.
* Returns: (transfer none) (nullable): the name of @feature. MT safe.
*
*/
#define gst_plugin_feature_get_name(feature) GST_OBJECT_NAME(feature)

8
gst/gstpoll.c
View file

@ -545,8 +545,8 @@ gst_poll_collect_winsock_events (GstPoll * set)
*
* Free-function: gst_poll_free
*
* Returns: (transfer full): a new #GstPoll, or %NULL in case of an error.
* Free with gst_poll_free().
* Returns: (transfer full) (nullable): a new #GstPoll, or %NULL in
* case of an error. Free with gst_poll_free().
*/
GstPoll *
gst_poll_new (gboolean controllable)
@ -617,8 +617,8 @@ no_socket_pair:
*
* Free-function: gst_poll_free
*
* Returns: (transfer full): a new #GstPoll, or %NULL in case of an error.
* Free with gst_poll_free().
* Returns: (transfer full) (nullable): a new #GstPoll, or %NULL in
* case of an error. Free with gst_poll_free().
*/
GstPoll *
gst_poll_new_timer (void)

3
gst/gstpreset.c
View file

@ -1141,7 +1141,8 @@ gst_preset_set_app_dir (const gchar * app_dir)
* Gets the directory for application specific presets if set by the
* application.
*
* Returns: the directory or %NULL, don't free or modify the string
* Returns: (nullable): the directory or %NULL, don't free or modify
* the string
*/
const gchar *
gst_preset_get_app_dir (void)

14
gst/gstregistry.c
View file

@ -868,8 +868,9 @@ gst_registry_plugin_name_filter (GstPlugin * plugin, const gchar * name)
* Find the plugin with the given name in the registry.
* The plugin will be reffed; caller is responsible for unreffing.
*
* Returns: (transfer full): the plugin with the given name or %NULL if the
* plugin was not found. gst_object_unref() after usage.
* Returns: (transfer full) (nullable): the plugin with the given name
* or %NULL if the plugin was not found. gst_object_unref() after
* usage.
*
* MT safe.
*/
@ -902,8 +903,9 @@ gst_registry_find_plugin (GstRegistry * registry, const gchar * name)
*
* Find the pluginfeature with the given name and type in the registry.
*
* Returns: (transfer full): the pluginfeature with the given name and type
* or %NULL if the plugin was not found. gst_object_unref() after usage.
* Returns: (transfer full) (nullable): the pluginfeature with the
* given name and type or %NULL if the plugin was not
* found. gst_object_unref() after usage.
*
* MT safe.
*/
@ -1055,8 +1057,8 @@ gst_registry_lookup_bn (GstRegistry * registry, const char *basename)
* Look up a plugin in the given registry with the given filename.
* If found, plugin is reffed.
*
* Returns: (transfer full): the #GstPlugin if found, or %NULL if not.
* gst_object_unref() after usage.
* Returns: (transfer full) (nullable): the #GstPlugin if found, or
* %NULL if not. gst_object_unref() after usage.
*/
GstPlugin *
gst_registry_lookup (GstRegistry * registry, const char *filename)

16
gst/gstsample.c
View file

@ -143,10 +143,10 @@ had_parent:
*
* Get the buffer associated with @sample
*
* Returns: (transfer none): the buffer of @sample or %NULL when there
* is no buffer. The buffer remains valid as long as @sample is valid.
* If you need to hold on to it for longer than that, take a ref to
* the buffer with gst_buffer_ref().
* Returns: (transfer none) (nullable): the buffer of @sample or %NULL
* when there is no buffer. The buffer remains valid as long as
* @sample is valid. If you need to hold on to it for longer than
* that, take a ref to the buffer with gst_buffer_ref().
*/
GstBuffer *
gst_sample_get_buffer (GstSample * sample)
@ -162,10 +162,10 @@ gst_sample_get_buffer (GstSample * sample)
*
* Get the caps associated with @sample
*
* Returns: (transfer none): the caps of @sample or %NULL when there
* is no caps. The caps remain valid as long as @sample is valid.
* If you need to hold on to the caps for longer than that, take a ref to
* the caps with gst_caps_ref().
* Returns: (transfer none) (nullable): the caps of @sample or %NULL
* when there is no caps. The caps remain valid as long as @sample is
* valid. If you need to hold on to the caps for longer than that,
* take a ref to the caps with gst_caps_ref().
*/
GstCaps *
gst_sample_get_caps (GstSample * sample)

14
gst/gststructure.c
View file

@ -1585,8 +1585,8 @@ gst_structure_get_double (const GstStructure * structure,
* The string should not be modified, and remains valid until the next
* call to a gst_structure_*() function with the given structure.
*
* Returns: a pointer to the string or %NULL when the field did not exist
* or did not contain a string.
* Returns: (nullable): a pointer to the string or %NULL when the
* field did not exist or did not contain a string.
*/
const gchar *
gst_structure_get_string (const GstStructure * structure,
@ -2374,8 +2374,9 @@ priv_gst_structure_parse_fields (gchar * str, gchar ** end,
*
* Free-function: gst_structure_free
*
* Returns: (transfer full): a new #GstStructure or %NULL when the string could
* not be parsed. Free with gst_structure_free() after use.
* Returns: (transfer full) (nullable): a new #GstStructure or %NULL
* when the string could not be parsed. Free with
* gst_structure_free() after use.
*
* Since: 1.2
*/
@ -2396,8 +2397,9 @@ gst_structure_new_from_string (const gchar * string)
*
* Free-function: gst_structure_free
*
* Returns: (transfer full): a new #GstStructure or %NULL when the string could
* not be parsed. Free with gst_structure_free() after use.
* Returns: (transfer full) (nullable): a new #GstStructure or %NULL
* when the string could not be parsed. Free with
* gst_structure_free() after use.
*/
GstStructure *
gst_structure_from_string (const gchar * string, gchar ** end)

15
gst/gsttaglist.c
View file

@ -844,8 +844,9 @@ gst_tag_list_get_scope (const GstTagList * list)
*
* Serializes a tag list to a string.
*
* Returns: a newly-allocated string, or %NULL in case of an error. The
* string must be freed with g_free() when no longer needed.
* Returns: (nullable): a newly-allocated string, or %NULL in case of
* an error. The string must be freed with g_free() when no longer
* needed.
*/
gchar *
gst_tag_list_to_string (const GstTagList * list)
@ -861,7 +862,8 @@ gst_tag_list_to_string (const GstTagList * list)
*
* Deserializes a tag list.
*
* Returns: a new #GstTagList, or %NULL in case of an error.
* Returns: (nullable): a new #GstTagList, or %NULL in case of an
* error.
*/
GstTagList *
gst_tag_list_new_from_string (const gchar * str)
@ -1140,7 +1142,7 @@ gst_tag_list_insert (GstTagList * into, const GstTagList * from,
*
* Free-function: gst_tag_list_unref
*
* Returns: (transfer full): the new list
* Returns: (transfer full) (nullable): the new list
*/
GstTagList *
gst_tag_list_merge (const GstTagList * list1, const GstTagList * list2,
@ -1424,8 +1426,9 @@ gst_tag_list_foreach (const GstTagList * list, GstTagForeachFunc func,
* Gets the value that is at the given index for the given tag in the given
* list.
*
* Returns: (transfer none): The GValue for the specified entry or %NULL if the
* tag wasn't available or the tag doesn't have as many entries
* Returns: (transfer none) (nullable): The GValue for the specified
* entry or %NULL if the tag wasn't available or the tag
* doesn't have as many entries
*/
const GValue *
gst_tag_list_get_value_index (const GstTagList * list, const gchar * tag,

4
gst/gsttagsetter.c
View file

@ -340,8 +340,8 @@ gst_tag_setter_add_tag_value (GstTagSetter * setter,
*
* This function is not thread-safe.
*
* Returns: (transfer none): a current snapshot of the taglist used in the
* setter or %NULL if none is used.
* Returns: (transfer none) (nullable): a current snapshot of the
* taglist used in the setter or %NULL if none is used.
*/
const GstTagList *
gst_tag_setter_get_tag_list (GstTagSetter * setter)

6
gst/gsttaskpool.c
View file

@ -223,9 +223,9 @@ gst_task_pool_cleanup (GstTaskPool * pool)
*
* Start the execution of a new thread from @pool.
*
* Returns: (transfer none): a pointer that should be used for the
* gst_task_pool_join function. This pointer can be %NULL, you must
* check @error to detect errors.
* Returns: (transfer none) (nullable): a pointer that should be used
* for the gst_task_pool_join function. This pointer can be %NULL, you
* must check @error to detect errors.
*/
gpointer
gst_task_pool_push (GstTaskPool * pool, GstTaskPoolFunction func,

12
gst/gsttoc.c
View file

@ -360,7 +360,8 @@ gst_toc_entry_find_sub_entry (const GstTocEntry * entry, const gchar * uid)
*
* Find #GstTocEntry with given @uid in the @toc.
*
* Returns: (transfer none): #GstTocEntry with specified @uid from the @toc, or %NULL if not found.
* Returns: (transfer none) (nullable): #GstTocEntry with specified
* @uid from the @toc, or %NULL if not found.
*/
GstTocEntry *
gst_toc_find_entry (const GstToc * toc, const gchar * uid)
@ -393,8 +394,9 @@ gst_toc_find_entry (const GstToc * toc, const gchar * uid)
*
* Copy #GstTocEntry with all subentries (deep copy).
*
* Returns: newly allocated #GstTocEntry in case of success, %NULL otherwise;
* free it when done with gst_toc_entry_unref().
* Returns: (nullable): newly allocated #GstTocEntry in case of
* success, %NULL otherwise; free it when done with
* gst_toc_entry_unref().
*/
static GstTocEntry *
gst_toc_entry_copy (const GstTocEntry * entry)
@ -437,8 +439,8 @@ gst_toc_entry_copy (const GstTocEntry * entry)
*
* Copy #GstToc with all subentries (deep copy).
*
* Returns: newly allocated #GstToc in case of success, %NULL otherwise;
* free it when done with gst_toc_unref().
* Returns: (nullable): newly allocated #GstToc in case of success,
* %NULL otherwise; free it when done with gst_toc_unref().
*/
static GstToc *
gst_toc_copy (const GstToc * toc)

4
gst/gsttocsetter.c
View file

@ -128,8 +128,8 @@ gst_toc_setter_reset (GstTocSetter * setter)
* modified without making it writable first.
*
*
* Returns: (transfer full): TOC set, or %NULL. Unref with gst_toc_unref()
* when no longer needed
* Returns: (transfer full) (nullable): TOC set, or %NULL. Unref with
* gst_toc_unref() when no longer needed
*/
GstToc *
gst_toc_setter_get_toc (GstTocSetter * setter)

4
gst/gsttypefind.c
View file

@ -119,8 +119,8 @@ gst_type_find_register (GstPlugin * plugin, const gchar * name, guint rank,
* the stream. The returned memory is valid until the typefinding function
* returns and must not be freed.
*
* Returns: (transfer none) (array length=size): the requested data, or %NULL
* if that data is not available.
* Returns: (transfer none) (array length=size) (nullable): the
* requested data, or %NULL if that data is not available.
*/
const guint8 *
gst_type_find_peek (GstTypeFind * find, gint64 offset, guint size)

4
gst/gsttypefindfactory.c
View file

@ -177,8 +177,8 @@ gst_type_find_factory_get_caps (GstTypeFindFactory * factory)
* copy it using g_strdupv(). This function may return %NULL to indicate
* a 0-length list.
*
* Returns: (transfer none) (array zero-terminated=1) (element-type utf8): a
* %NULL-terminated array of extensions associated with this factory
* Returns: (transfer none) (array zero-terminated=1) (element-type utf8) (nullable):
* a %NULL-terminated array of extensions associated with this factory
*/
const gchar *const *
gst_type_find_factory_get_extensions (GstTypeFindFactory * factory)

20
gst/gsturi.c
View file

@ -233,9 +233,9 @@ unescape_character (const char *scanner)
* Characters are encoded in PERCENTxy form, where xy is the ASCII hex code
* for character 16x+y.
*
* Return value: a newly allocated string with the unescaped equivalents,
* or %NULL if @escaped_string contained one of the characters
* in @illegal_characters.
* Return value: (nullable): a newly allocated string with the
* unescaped equivalents, or %NULL if @escaped_string contained one of
* the characters in @illegal_characters.
**/
static char *
unescape_string (const gchar * escaped_string, const gchar * illegal_characters)
@ -664,9 +664,10 @@ gst_uri_handler_get_uri_type (GstURIHandler * handler)
* Gets the list of protocols supported by @handler. This list may not be
* modified.
*
* Returns: (transfer none) (element-type utf8): the supported protocols.
* Returns %NULL if the @handler isn't implemented properly, or the @handler
* doesn't support any protocols.
* Returns: (transfer none) (element-type utf8) (nullable): the
* supported protocols. Returns %NULL if the @handler isn't
* implemented properly, or the @handler doesn't support any
* protocols.
*/
const gchar *const *
gst_uri_handler_get_protocols (GstURIHandler * handler)
@ -692,9 +693,10 @@ gst_uri_handler_get_protocols (GstURIHandler * handler)
*
* Gets the currently handled URI.
*
* Returns: (transfer full): the URI currently handled by the @handler.
* Returns %NULL if there are no URI currently handled. The
* returned string must be freed with g_free() when no longer needed.
* Returns: (transfer full) (nullable): the URI currently handled by
* the @handler. Returns %NULL if there are no URI currently
* handled. The returned string must be freed with g_free() when no
* longer needed.
*/
gchar *
gst_uri_handler_get_uri (GstURIHandler * handler)

36
gst/gstutils.c
View file

@ -773,8 +773,8 @@ gst_element_create_all_pads (GstElement * element)
* Retrieves a pad template from @element that is compatible with @compattempl.
* Pads from compatible templates can be linked together.
*
* Returns: (transfer none): a compatible #GstPadTemplate, or %NULL if none
* was found. No unreferencing is necessary.
* Returns: (transfer none) (nullable): a compatible #GstPadTemplate,
* or %NULL if none was found. No unreferencing is necessary.
*/
GstPadTemplate *
gst_element_get_compatible_pad_template (GstElement * element,
@ -850,8 +850,8 @@ gst_element_get_compatible_pad_template (GstElement * element,
* #GST_PAD_REQUEST, requests a new pad. Can return %NULL for #GST_PAD_SOMETIMES
* templates.
*
* Returns: (transfer full): the #GstPad, or NULL if one could not be found
* or created.
* Returns: (transfer full) (nullable): the #GstPad, or %NULL if one
* could not be found or created.
*/
static GstPad *
gst_element_get_pad_from_template (GstElement * element, GstPadTemplate * templ)
@ -891,7 +891,8 @@ gst_element_get_pad_from_template (GstElement * element, GstPadTemplate * templ)
* Requests a pad from @element. The returned pad should be unlinked and
* compatible with @templ. Might return an existing pad, or request a new one.
*
* Returns: a #GstPad, or %NULL if one could not be found or created.
* Returns: (nullable): a #GstPad, or %NULL if one could not be found
* or created.
*/
static GstPad *
gst_element_request_compatible_pad (GstElement * element,
@ -984,8 +985,9 @@ gst_pad_check_link (GstPad * srcpad, GstPad * sinkpad)
* and if none can be found, it will request a compatible REQUEST pad by looking
* at the templates of @element.
*
* Returns: (transfer full): the #GstPad to which a link can be made, or %NULL
* if one cannot be found. gst_object_unref() after usage.
* Returns: (transfer full) (nullable): the #GstPad to which a link
* can be made, or %NULL if one cannot be found. gst_object_unref()
* after usage.
*/
GstPad *
gst_element_get_compatible_pad (GstElement * element, GstPad * pad,
@ -2311,8 +2313,9 @@ gst_pad_use_fixed_caps (GstPad * pad)
* Gets the parent of @pad, cast to a #GstElement. If a @pad has no parent or
* its parent is not an element, return %NULL.
*
* Returns: (transfer full): the parent of the pad. The caller has a
* reference on the parent, so unref when you're finished with it.
* Returns: (transfer full) (nullable): the parent of the pad. The
* caller has a reference on the parent, so unref when you're finished
* with it.
*
* MT safe.
*/
@ -2957,7 +2960,8 @@ element_find_unlinked_pad (GstElement * element, GstPadDirection direction)
* owns a reference to it and should use gst_object_unref() on the
* pad when it is not needed any longer.
*
* Returns: (transfer full): unlinked pad of the given direction, %NULL.
* Returns: (transfer full) (nullable): unlinked pad of the given
* direction, %NULL.
*/
GstPad *
gst_bin_find_unlinked_pad (GstBin * bin, GstPadDirection direction)
@ -3017,8 +3021,8 @@ gst_bin_find_unlinked_pad (GstBin * bin, GstPadDirection direction)
* and want them all ghosted, you will have to create the ghost pads
* yourself).
*
* Returns: (transfer floating) (type Gst.Bin): a newly-created bin,
* or %NULL if an error occurred.
* Returns: (transfer floating) (type Gst.Bin) (nullable): a
* newly-created bin, or %NULL if an error occurred.
*/
GstElement *
gst_parse_bin_from_description (const gchar * bin_description,
@ -3159,7 +3163,8 @@ gst_util_get_timestamp (void)
*
* The complexity of this search function is O(log (num_elements)).
*
* Returns: (transfer none): The address of the found element or %NULL if nothing was found
* Returns: (transfer none) (nullable): The address of the found
* element or %NULL if nothing was found
*/
gpointer
gst_util_array_binary_search (gpointer array, guint num_elements,
@ -3778,8 +3783,9 @@ gst_pad_create_stream_id (GstPad * pad, GstElement * parent,
* The returned stream-id string should be treated as an opaque string, its
* contents should not be interpreted.
*
* Returns: a newly-allocated copy of the stream-id for @pad, or %NULL.
* g_free() the returned string when no longer needed.
* Returns: (nullable): a newly-allocated copy of the stream-id for
* @pad, or %NULL. g_free() the returned string when no longer
* needed.
*
* Since: 1.2
*/

3
gst/gstvalue.c
View file

@ -5059,7 +5059,8 @@ gst_value_move (GValue * dest, GValue * src)
*
* Free-function: g_free
*
* Returns: (transfer full): the serialization for @value or %NULL if none exists
* Returns: (transfer full) (nullable): the serialization for @value
* or %NULL if none exists
*/
gchar *
gst_value_serialize (const GValue * value)