Class SystemClock
- All Implemented Interfaces:
Proxy
- Direct Known Subclasses:
AudioClock
The GStreamer core provides a GstSystemClock based on the system time. Asynchronous callbacks are scheduled from an internal thread.
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.
-
Nested Class Summary
Nested ClassesModifier and TypeClassDescriptionstatic classSystemClock.Builder<B extends SystemClock.Builder<B>>Inner class implementing a builder pattern to construct a GObject with properties.static classNested classes/interfaces inherited from class Clock
Clock.Clock$Impl, Clock.ClockClass, Clock.SyncedCallbackNested classes/interfaces inherited from class GstObject
GstObject.DeepNotifyCallback, GstObject.Object$Impl, GstObject.ObjectClassNested classes/interfaces inherited from class InitiallyUnowned
InitiallyUnowned.InitiallyUnownedClassNested classes/interfaces inherited from class GObject
GObject.NotifyCallback -
Constructor Summary
ConstructorsConstructorDescriptionCreate a new SystemClock.SystemClock(MemorySegment address) Create a SystemClock instance for the provided memory address. -
Method Summary
Modifier and TypeMethodDescriptionprotected SystemClockasParent()Return this instance as if it were its parent type.static SystemClock.Builder<? extends SystemClock.Builder> builder()ASystemClock.Builderobject constructs aSystemClockwith the specified properties.static MemoryLayoutThe memory layout of the native struct.static @Nullable TypegetType()Get the GType of the SystemClock class.static Clockobtain()Get a handle to the default system clock.static voidsetDefault(@Nullable Clock newClock) Sets the default system clock that can be obtained with gst_system_clock_obtain().Methods inherited from class Clock
addObservation, addObservationUnapplied, adjustUnlocked, adjustWithCalibration, changeResolution, emitSynced, getCalibration, getInternalTime, getMaster, getResolution, getTime, getTimeout, idCompareFunc, idGetClock, idGetTime, idRef, idUnref, idUnschedule, idUsesClock, idWait, idWaitAsync, isSynced, newPeriodicId, newSingleShotId, onSynced, periodicIdReinit, setCalibration, setMaster, setResolution, setSynced, setTimeout, singleShotIdReinit, unadjustUnlocked, unadjustWithCalibration, unschedule, wait_, waitAsync, waitForSyncMethods inherited from class GstObject
addControlBinding, checkUniqueness, deepNotify, defaultDeepNotify, defaultError, emitDeepNotify, getControlBinding, getControlRate, getGValueArray, getName, getParent, getPathString, getValue, getValueArray, hasActiveControlBindings, hasAncestor, hasAsAncestor, hasAsParent, onDeepNotify, ref, refSink, removeControlBinding, replace, setControlBindingDisabled, setControlBindingsDisabled, setControlRate, setName, setParent, suggestNextSync, syncValues, unparent, unrefMethods inherited from class GObject
addToggleRef, addWeakPointer, bindProperty, bindProperty, bindProperty, bindPropertyFull, bindPropertyFull, bindPropertyWithClosures, bindPropertyWithClosures, compatControl, connect, connect, connect, constructed, disconnect, dispatchPropertiesChanged, dispose, dupData, dupQdata, emit, emitNotify, finalize_, forceFloating, freezeNotify, get, getData, getProperty, getProperty, getProperty, getQdata, getv, interfaceFindProperty, interfaceInstallProperty, interfaceListProperties, isFloating, newInstance, newInstance, newv, notify, notify, notifyByPspec, onNotify, refSink, removeToggleRef, removeWeakPointer, replaceData, replaceQdata, runDispose, set, setData, setDataFull, setProperty, setProperty, setProperty, setQdata, setQdataFull, setv, stealData, stealQdata, takeRef, thawNotify, watchClosure, weakRef, weakUnref, withPropertiesMethods inherited from class TypeInstance
callParent, callParent, cast, getPrivate, readGClass, writeGClassMethods inherited from class ProxyInstance
equals, handle, hashCode
-
Constructor Details
-
SystemClock
Create a SystemClock instance for the provided memory address.- Parameters:
address- the memory address of the native object
-
SystemClock
public SystemClock()Create a new SystemClock.
-
-
Method Details
-
getType
-
getMemoryLayout
The memory layout of the native struct.- Returns:
- the memory layout
-
asParent
Return this instance as if it were its parent type. Comparable to the Javasuperkeyword, but ensures the parent typeclass is also used in native code. -
obtain
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.
-
setDefault
Sets the default system clock that can be obtained with gst_system_clock_obtain().
This is mostly used for testing and debugging purposes when you want to have control over the time reported by the default system clock.
MT safe.
- Parameters:
newClock- aGstClock- Since:
- 1.4
-
builder
ASystemClock.Builderobject constructs aSystemClockwith the specified properties. Use the variousset...()methods to set properties, and finish construction withSystemClock.Builder.build().- Returns:
- the builder object
-