Struct MediaClock 

pub struct MediaClock {
    inner: ClockInner,
}

Authoritative timeline source. Capture pipelines stamp their chunks/frames against a single shared MediaClock so audio, video, cursor, and wisp overlays all agree on “now.”

Two modes — pick at construction:

• MediaClock::wall_clock — anchored to Instant::now(). Used by live capture and playback.
• MediaClock::manual — driven by MediaClock::advance_by. Used by tests, headless examples, and the synthetic sync harness (M-MEDIA.7) so timestamps are byte-exact reproducible.

Fields

inner: ClockInner

Implementations

impl MediaClock

pub fn wall_clock() -> Self

Construct a wall-clock-backed MediaClock, anchored to now. Subsequent now() calls return MediaTime values relative to this anchor.

pub fn manual(start: MediaTime) -> Self

Construct a manual clock starting at start. The clock only advances when Self::advance_by is called — useful for deterministic tests.

pub fn now(&self) -> MediaTime

Current timeline position.

pub fn advance_by(&self, duration: MediaDuration)

Advance a manual clock by duration. No-op on a wall clock.

pub fn assign<T>(&self, value: T) -> Timestamped<T>

Attach the current timestamp to value.

pub const fn is_manual(&self) -> bool

True for a manual clock; false for a wall clock. Used by tests and examples to gate assertions on byte-exact timestamps.

Trait Implementations

impl Debug for MediaClock

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

Formats the value using the given formatter.

impl Default for MediaClock

fn default() -> Self

Returns the “default value” for a type.