Struct gstreamer::SystemClock

#[repr(transparent)]
pub struct SystemClock { /* private fields */ }

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.

Properties

clock-type

Readable | Writeable

Clock

timeout

Readable | Writeable

window-size

Readable | Writeable

window-threshold

Readable | Writeable

Object

name

Readable | Writeable | Construct

parent

The parent of the object. Please note, that when changing the ‘parent’ property, we don’t emit notify and deep-notify signals due to locking issues. In some cases one can use element-added or element-removed signals on the parent to achieve a similar effect.

Readable | Writeable

Implements

SystemClockExt, ClockExt, GstObjectExt, glib::ObjectExt, ClockExtManual

Implementations

impl SystemClock

pub const NONE: Option<&'static SystemClock> = None

pub fn obtain() -> Clock

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.

pub fn set_default(new_clock: Option<&impl IsA<Clock>>)

Sets the default system clock that can be obtained with 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.

new_clock

a Clock

Trait Implementations

impl Clone for SystemClock

fn clone(&self) -> Self

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SystemClock

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl HasParamSpec for SystemClock

type ParamSpec = ParamSpecObject

type SetValue = SystemClock

Preferred value to be used as setter for the associated ParamSpec.

type BuilderFn = fn(_: &str) -> ParamSpecObjectBuilder<'_, SystemClock>

fn param_spec_builder() -> Self::BuilderFn

impl Hash for SystemClock

fn hash<H>(&self, state: &mut H)where
    H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where
    H: Hasher,
    Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<T: SystemClockImpl> IsSubclassable<T> for SystemClock

fn class_init(class: &mut Class<Self>)

Override the virtual methods of this class for the given subclass and do other class initialization.

fn instance_init(instance: &mut InitializingObject<T>)

Instance specific initialization.

impl Ord for SystemClock

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Selfwhere
    Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Selfwhere
    Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere
    Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval.

impl ParentClassIs for SystemClock

type Parent = Clock

impl<OT: ObjectType> PartialEq<OT> for SystemClock

fn eq(&self, other: &OT) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<OT: ObjectType> PartialOrd<OT> for SystemClock

fn partial_cmp(&self, other: &OT) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl StaticType for SystemClock

fn static_type() -> Type

Returns the type identifier of Self.

impl Eq for SystemClock

impl IsA<Clock> for SystemClock

impl IsA<Object> for SystemClock

impl Send for SystemClock

impl Sync for SystemClock