gstreamermm  1.4.3
Public Member Functions | Static Public Member Functions | Protected Member Functions | Related Functions | List of all members
Gst::SystemClock Class Reference

A default clock that uses the current system time. More...

Inheritance diagram for Gst::SystemClock:
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Collaboration diagram for Gst::SystemClock:
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Public Member Functions

virtual ~SystemClock ()
 
GstSystemClock* gobj ()
 Provides access to the underlying C GObject. More...
 
const GstSystemClock* gobj () const
 Provides access to the underlying C GObject. More...
 
GstSystemClock* gobj_copy ()
 Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs. More...
 
- Public Member Functions inherited from Gst::Clock
virtual ~Clock ()
 
GstClock* gobj ()
 Provides access to the underlying C GObject. More...
 
const GstClock* gobj () const
 Provides access to the underlying C GObject. More...
 
GstClock* gobj_copy ()
 Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs. More...
 
bool add_observation (ClockTime slave_time, ClockTime master_time, gdouble* result)
 The time master of the master clock and the time slave of the slave clock are added to the list of observations. More...
 
bool set_master (const Clock& master_clock)
 Set master as the master clock for clock. More...
 
Glib::RefPtr< Gst::Clockget_master ()
 Get the master clock that clock is slaved to or 0 when the clock is not slaved to any master clock. More...
 
Glib::RefPtr< const Gst::Clockget_master () const
 Get the master clock that clock is slaved to or 0 when the clock is not slaved to any master clock. More...
 
ClockTime set_resolution (ClockTime resolution)
 Set the accuracy of the clock. More...
 
ClockTime get_resolution () const
 Get the accuracy of the clock. More...
 
ClockTime get_time () const
 Gets the current time of the given clock. More...
 
Glib::RefPtr< Gst::ClockIDcreate_single_shot_id (ClockTime time)
 Get a Gst::ClockID from clock to trigger a single shot notification at the requested time. More...
 
Glib::RefPtr< Gst::ClockIDcreate_periodic_id (ClockTime start_time, ClockTime intervals)
 Get an ID from clock to trigger a periodic notification. More...
 
ClockTime get_internal_time () const
 Gets the current internal time of the given clock. More...
 
ClockTime adjust_unlocked (ClockTime internal_time)
 Converts the given internal clock time to the external time, adjusting for the rate and reference time set with set_calibration() and making sure that the returned time is increasing. More...
 
ClockTime unadjust_unlocked (ClockTime external_time)
 Converts the given external clock time to the internal time of clock, using the rate and reference time set with set_calibration(). More...
 
void get_calibration (ClockTime&internal, ClockTime& external, ClockTime& rate_num, ClockTime& rate_denom) const
 Gets the internal rate and reference time of clock. More...
 
void set_calibration (ClockTime internal, ClockTime external, ClockTime rate_num, ClockTime rate_denom)
 Adjusts the rate and time of clock. More...
 
Glib::PropertyProxy< guint64 > property_timeout ()
 The amount of time, in nanoseconds, to sample master and slave clocks. More...
 
Glib::PropertyProxy_ReadOnly
< guint64 > 
property_timeout () const
 The amount of time, in nanoseconds, to sample master and slave clocks. More...
 
Glib::PropertyProxy< int > property_window_size ()
 The size of the window used to calculate rate and offset. More...
 
Glib::PropertyProxy_ReadOnly< int > property_window_size () const
 The size of the window used to calculate rate and offset. More...
 
Glib::PropertyProxy< int > property_window_threshold ()
 The threshold to start calculating rate and offset. More...
 
Glib::PropertyProxy_ReadOnly< int > property_window_threshold () const
 The threshold to start calculating rate and offset. More...
 
virtual ClockTime change_resolution_vfunc (ClockTime old_resolution, ClockTime new_resolution)
 Change the resolution of the clock. More...
 
virtual ClockTime get_resolution_vfunc () const
 Get the resolution of the clock. More...
 
virtual ClockTime get_internal_time_vfunc () const
 Get the internal unadjusted time of the clock. More...
 
virtual ClockReturn wait_vfunc (const Glib::RefPtr< Gst::ClockID >& id, ClockTimeDiff& jitter)
 Perform a blocking wait for the given Gst::ClockID. More...
 
virtual ClockReturn wait_async_vfunc (const Glib::RefPtr< Gst::ClockID >& id)
 Perform an asynchronous wait for the given Gst::ClockID. More...
 
virtual void unschedule_vfunc (const Glib::RefPtr< Gst::ClockID >& id)
 Unblock a blocking or async wait operation. More...
 
- Public Member Functions inherited from Gst::Object
virtual ~Object ()
 
GstObject* gobj ()
 Provides access to the underlying C GObject. More...
 
const GstObject* gobj () const
 Provides access to the underlying C GObject. More...
 
GstObject* gobj_copy ()
 Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs. More...
 
bool is_element () const
 
bool is_element_factory () const
 
bool is_pad () const
 
bool is_pad_template () const
 
bool is_bin () const
 
guint32 get_flags () const
 Returns the entire set of flags for the object. More...
 
bool set_name (const Glib::ustring& name)
 Sets the name of object, or gives object a guaranteed unique name (if name is 0). More...
 
Glib::ustring get_name () const
 Returns a copy of the name of object. More...
 
bool set_parent (const Glib::RefPtr< Gst::Object >& parent)
 Sets the parent of object to parent. More...
 
Glib::RefPtr< Gst::Objectget_parent ()
 Returns the parent of object. More...
 
Glib::RefPtr< const Gst::Objectget_parent () const
 Returns the parent of object. More...
 
void unparent ()
 Clear the parent of object, removing the associated reference. More...
 
bool has_ancestor (const Glib::RefPtr< const Gst::Object >& ancestor) const
 Check if object has an ancestor ancestor somewhere up in the hierarchy. More...
 
Glib::ustring get_path_string ()
 Generates a string describing the path of object in the object hierarchy. More...
 
Glib::PropertyProxy
< Glib::ustring
property_name ()
 The name of the object. More...
 
Glib::PropertyProxy_ReadOnly
< Glib::ustring
property_name () const
 The name of the object. More...
 
Glib::SignalProxy2< void,
const Glib::RefPtr< Object >
&, GParamSpec* > 
signal_deep_notify ()
 
int get_refcount () const
 

Static Public Member Functions

static GType get_type ()
 Get the GType for this class, for use with the underlying GObject type system. More...
 
static Glib::RefPtr< Gst::Clockobtain ()
 Get a handle to the default system clock. More...
 
- Static Public Member Functions inherited from Gst::Clock
static GType get_type ()
 Get the GType for this class, for use with the underlying GObject type system. More...
 
- Static Public Member Functions inherited from Gst::Object
static GType get_type ()
 Get the GType for this class, for use with the underlying GObject type system. More...
 
static bool check_uniqueness (const Glib::ListHandle< const Gst::Object >& list, const Glib::ustring& name)
 Checks to see if there is any object named name in list. More...
 

Protected Member Functions

 SystemClock ()
 
- Protected Member Functions inherited from Gst::Object
virtual void on_deep_notify (const Glib::RefPtr< Object >& prop_object, GParamSpec* prop)
 This is a default handler for the signal signal_deep_notify(). More...
 

Related Functions

(Note that these are not member functions.)

Glib::RefPtr< Gst::SystemClockwrap (GstSystemClock* object, bool take_copy=false)
 A Glib::wrap() method for this object. More...
 

Detailed Description

A default clock that uses the current system time.

The GStreamer core provides a Gst::SystemClock based on the system time. Asynchronous callbacks are scheduled from an internal thread.

Gst::Clock implementors are encouraged to subclass this systemclock as it implements the async notification.

Subclasses can however override all of the important methods for sync and async notifications to implement their own callback methods or blocking wait operations.

Last reviewed on 2006-03-08 (0.10.4)

Constructor & Destructor Documentation

virtual Gst::SystemClock::~SystemClock ( )
virtual
Gst::SystemClock::SystemClock ( )
protected

Member Function Documentation

static GType Gst::SystemClock::get_type ( )
static

Get the GType for this class, for use with the underlying GObject type system.

GstSystemClock* Gst::SystemClock::gobj ( )
inline

Provides access to the underlying C GObject.

const GstSystemClock* Gst::SystemClock::gobj ( ) const
inline

Provides access to the underlying C GObject.

GstSystemClock* Gst::SystemClock::gobj_copy ( )

Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.

static Glib::RefPtr<Gst::Clock> Gst::SystemClock::obtain ( )
static

Get a handle to the default system clock.

The refcount of the clock will be increased so you need to unref the clock after usage.

Returns
The default clock.

MT safe.

Friends And Related Function Documentation

Glib::RefPtr< Gst::SystemClock > wrap ( GstSystemClock *  object,
bool  take_copy = false 
)
related

A Glib::wrap() method for this object.

Parameters
objectThe C instance.
take_copyFalse if the result should take ownership of the C instance. True if it should take a new copy or ref.
Returns
A C++ instance that wraps this C instance.

The documentation for this class was generated from the following file: