Struct Follower 

pub struct Follower { /* private fields */ }

One clip’s position, measured on a shared master.

Play, pause, and seek are the clip’s own; the time between them is the master’s. Following a stopped master — an audio device that is paused or gone — freezes the clip where it is, which is the only thing a picture following a sound can sensibly do.

Implementations

impl Follower

pub fn new(master: SharedClock) -> Self

Paused, at zero.

pub fn starting_at(master: SharedClock, master_position: Duration) -> Self

Running, with the clip’s zero at master_position on the master — in the past, so the clip is already some way in, or in the future, so it waits. See is_due.

pub fn master(&self) -> &SharedClock

The master this follows.

pub fn play(&mut self)

Starts, or resumes, from wherever the clip is.

pub fn pause(&mut self)

Stops, keeping the position.

pub fn seek(&mut self, position: Duration)

Moves to a position. Keeps running if it was running.

pub fn is_playing(&self) -> bool

Whether the clip itself is playing, whatever the master is doing.

pub fn is_due(&self) -> bool

Whether the clip has reached its start: false only for a clip made with starting_at a point the master has not got to yet.

Trait Implementations

impl Clone for Follower

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Follower

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

Formats the value using the given formatter.

impl MasterClock for Follower

fn position(&self) -> Duration

How far into the stream playback currently is.

fn is_running(&self) -> bool

Whether it is running. A paused master freezes video too.