A new scheduling query object. More...

#include <gstreamermm/query.h>

Inheritance diagram for Gst::QueryScheduling:

[legend]

Public Member Functions
void	parse (Gst::SchedulingFlags& flags, gint& minsize, gint& maxsize, gint&align) const
	Set the scheduling properties.
void	set (Gst::SchedulingFlags flags, gint minsize, gint maxsize, gint align)
	Set the scheduling properties.
void	add_scheduling_mode (Gst::PadMode mode)
	Add mode as aone of the supported scheduling modes to query.
guint	get_n_scheduling_modes () const
	Retrieve the number of values currently stored in the scheduling mode array of the query's structure.
Gst::PadMode	parse_nth_scheduling_mode (guint index) const
	Parse an available query and get the scheduling mode at index of the scheduling modes array.
bool	has_scheduling_mode (Gst::PadMode mode) const
	Check if query has scheduling mode set.
bool	has_scheduling_mode_with_flags (Gst::PadMode mode, Gst::SchedulingFlags flags) const
	Check if query has scheduling mode set and flags is set in query scheduling flags.
Public Member Functions inherited from Gst::Query
void	reference () const
	Increment the reference count for this object.
void	unreference () const
	Decrement the reference count for this object.
GstQuery*	gobj ()
	Provides access to the underlying C instance.
const GstQuery*	gobj () const
	Provides access to the underlying C instance.
GstQuery*	gobj_copy () const
	Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.
	Query ()=delete
	Query (const Query&)=delete
Query&	operator= (const Query&)=delete
Glib::RefPtr< Gst::Query >	create_writable ()
	Makes a writable query from the given query.
Gst::Structure	get_structure () const
	Get the structure of a query.
QueryType	get_query_type () const
	Get the Gst::QueryType of the query.
Glib::RefPtr< Gst::Query >	copy ()
	Copies the given query using the copy function of the parent Gst::Structure.
Public Member Functions inherited from Gst::MiniObject
void	reference () const
	Increment the reference count for this object.
void	unreference () const
	Decrement the reference count for this object.
GstMiniObject*	gobj ()
	Provides access to the underlying C instance.
const GstMiniObject*	gobj () const
	Provides access to the underlying C instance.
GstMiniObject*	gobj_copy () const
	Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.
	MiniObject ()=delete
	MiniObject (const MiniObject&)=delete
MiniObject&	operator= (const MiniObject&)=delete
	~MiniObject ()
guint	get_flags () const
void	set_flags (const guint& value)
gint	get_refcount () const
gint	get_lockstate () const
bool	lock (LockFlags flags)
	Lock the mini-object with the specified access mode in flags.
void	unlock (LockFlags flags)
	Unlock the mini-object with the specified access mode in flags.
bool	is_writable () const
	If mini_object has the LOCKABLE flag set, check if the current EXCLUSIVE lock on object is the only one, this means that changes to the object will not be visible to any other object.
Glib::RefPtr< MiniObject >	create_writable ()
	Checks if a mini-object is writable.
void	set_qdata (GQuark quark, QuarkData*data)
	This sets an opaque, named pointer on a miniobject.
QuarkData*	get_qdata (GQuark quark) const
	This function gets back user data pointers stored via set_qdata().
QuarkData*	steal_qdata (GQuark quark)
	This function gets back user data pointers stored via set_qdata() and removes the data from object without invoking its destroy() function (if any was set).
void	add_finalize_notifier (const SlotFinalizer& slot)
	Adds notifier when mini object is finalized.
void	remove_finalize_notifier ()
	Remove finalize notifier.

Static Public Member Functions
static Glib::RefPtr< Gst::QueryScheduling >	create ()
	Constructs a new query object for querying the scheduling properties.
Static Public Member Functions inherited from Gst::Query
static Glib::RefPtr< Gst::Query >	create_buffering (Gst::Format format)
	Constructs a new query object for querying the buffering status of a stream.
static Glib::RefPtr< Gst::Query >	create_allocation (Glib::RefPtr< Gst::Caps > caps, bool need_pool)
	Constructs a new query object for querying the allocation properties.
static Glib::RefPtr< Gst::Query >	create_uri ()
	Constructs a new query URI query object.
static Glib::RefPtr< Gst::Query >	create_scheduling ()
	Constructs a new query object for querying the scheduling properties.
static Glib::RefPtr< Gst::Query >	create_drain ()
	Constructs a new query object for querying the drain state.
static Glib::RefPtr< Gst::Query >	create_custom (Gst::QueryType type, const Gst::Structure& structure)
	Constructs a new custom query object.
static Glib::RefPtr< Gst::Query >	create_convert (Gst::Format format, gint64 value, Gst::Format dest_format)
	Constructs a new convert query object.
static Glib::RefPtr< Gst::Query >	create_position (Gst::Format format)
	Constructs a new query stream position query object.
static Glib::RefPtr< Gst::Query >	create_duration (Gst::Format format)
	Constructs a new stream duration query object to query in the given format.
static Glib::RefPtr< Gst::Query >	create_latency ()
	Constructs a new latency query object.
static Glib::RefPtr< Gst::Query >	create_seeking (Gst::Format format)
	Constructs a new query object for querying seeking properties of the stream.
static Glib::RefPtr< Gst::Query >	create_formats ()
	Constructs a new query object for querying formats of the stream.
static Glib::RefPtr< Gst::Query >	create_segment (Gst::Format format)
	Constructs a new segment query object.
static Glib::RefPtr< Gst::Query >	create_caps (Glib::RefPtr< Gst::Caps > filter)
	Constructs a new query object for querying the caps.
static Glib::RefPtr< Gst::Query >	create_accept_caps (Glib::RefPtr< Gst::Caps > filter)
	Constructs a new query object for querying if filter are accepted.

Additional Inherited Members
Public Types inherited from Gst::MiniObject
typedef sigc::slot< void >	SlotFinalizer
Protected Member Functions inherited from Gst::Query
void	operator delete (void*, std::size_t)
Protected Member Functions inherited from Gst::MiniObject
void	operator delete (void*, std::size_t)
Static Protected Member Functions inherited from Gst::Query
template <class QueryType>
static Glib::RefPtr< QueryType >	wrap (GstQuery* query, bool take_copy=false)
Related Symbols inherited from Gst::Query
Glib::RefPtr< Gst::Query >	wrap (GstQuery* object, bool take_copy=false)
	A Glib::wrap() method for this object.
Related Symbols inherited from Gst::MiniObject
Glib::RefPtr< Gst::MiniObject >	wrap (GstMiniObject* object, bool take_copy=false)
	A Glib::wrap() method for this object.

Detailed Description

A new scheduling query object.

See create() for more details.

Member Function Documentation

◆ add_scheduling_mode()

void Gst::QueryScheduling::add_scheduling_mode ( Gst::PadMode mode )

Add mode as aone of the supported scheduling modes to query.

Parameters

mode	A Gst::PadMode.

◆ create()

Glib::RefPtr< Gst::QueryScheduling > Gst::QueryScheduling::create ( )

static

Constructs a new query object for querying the scheduling properties.

Returns: A new Gst::QueryScheduling.

◆ get_n_scheduling_modes()

guint Gst::QueryScheduling::get_n_scheduling_modes ( ) const

Retrieve the number of values currently stored in the scheduling mode array of the query's structure.

Returns: the scheduling mode array size as a guint.

◆ has_scheduling_mode()

bool Gst::QueryScheduling::has_scheduling_mode ( Gst::PadMode mode ) const

Check if query has scheduling mode set.

Parameters

mode	the scheduling mode.

Returns: true when mode is in the list of scheduling modes.

◆ has_scheduling_mode_with_flags()

bool Gst::QueryScheduling::has_scheduling_mode_with_flags	(	Gst::PadMode	mode,
		Gst::SchedulingFlags	flags ) const

Check if query has scheduling mode set and flags is set in query scheduling flags.

Parameters

mode	the scheduling mode.
flags	Gst::SchedulingFlags.

◆ parse()

void Gst::QueryScheduling::parse	(	Gst::SchedulingFlags&	flags,
		gint &	minsize,
		gint &	maxsize,
		gint &	align ) const

Set the scheduling properties.

Parameters

flags	Gst::SchedulingFlags.
minsize	the suggested minimum size of pull requests.
maxsize	the suggested maximum size of pull requests.
align	the suggested alignment of pull requests.

◆ parse_nth_scheduling_mode()

Gst::PadMode Gst::QueryScheduling::parse_nth_scheduling_mode ( guint index ) const

Parse an available query and get the scheduling mode at index of the scheduling modes array.

Parameters

index position in the scheduling modes array to read

Returns: a Gst::PadMode of the scheduling mode at index.

◆ set()

void Gst::QueryScheduling::set	(	Gst::SchedulingFlags	flags,
		gint	minsize,
		gint	maxsize,
		gint	align )

Set the scheduling properties.

Parameters

flags	Gst::SchedulingFlags.
minsize	the suggested minimum size of pull requests.
maxsize	the suggested maximum size of pull requests.
align	the suggested alignment of pull requests.

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ add_scheduling_mode()

◆ create()

◆ get_n_scheduling_modes()

◆ has_scheduling_mode()

◆ has_scheduling_mode_with_flags()

◆ parse()

◆ parse_nth_scheduling_mode()

◆ set()