Enum ClockPriority 

pub enum ClockPriority {
    SystemFallback,
    Provider,
    AudioProvider,
    LiveSource,
    PtpGrandmaster,
}

Election priority of a clock candidate (M12 live clock distribution).

A pipeline runs against a single clock. When a live element provides one (a camera or RTSP source pacing to a hardware capture clock, an audio sink pacing to its DAC), the pipeline should adopt it over the default system clock so synchronisation follows real capture/playout cadence rather than wall time — GStreamer’s clock selection. Higher variants win.

Variants

SystemFallback

The default system / wall clock: the fallback when nothing else provides a clock.

Provider

A non-live element that can drive timing from a monotonic clock (eg a video display sink pacing to its presentation timeline).

AudioProvider

An audio sink pacing to its DAC’s real playout rate (M590). Preferred over a plain Provider so audio becomes the master and video slaves to it (GStreamer’s model), but still below a live capture source, whose hardware clock leads a live pipeline.

LiveSource

A live capture source whose hardware clock should pace the pipeline.

PtpGrandmaster

A PTP grandmaster-disciplined clock (M593). The shared network reference every device in a synchronised system (Pro AV / SMPTE ST 2110) slaves to, so it outranks even a local live-capture clock: when a grandmaster is present the whole facility, capture included, follows it.

Trait Implementations

impl Clone for ClockPriority

fn clone(&self) -> ClockPriority

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ClockPriority

impl Debug for ClockPriority

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

Formats the value using the given formatter.

impl Default for ClockPriority

fn default() -> ClockPriority

Returns the “default value” for a type.

impl Eq for ClockPriority

impl Hash for ClockPriority

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

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 Ord for ClockPriority

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

This method returns an Ordering between self and other.

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

where Self: Sized,

Compares and returns the maximum of two values.

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

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for ClockPriority

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for ClockPriority

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl StructuralPartialEq for ClockPriority