Struct ProgressHandle 

pub struct ProgressHandle { /* private fields */ }

A cheap, cloneable, thread-safe, read-only view of a scheduled FFmpeg job’s progress, obtained from FfmpegScheduler::progress_handle in the Running or Paused state.

The handle holds only reference-counted std synchronization state — no FFmpeg pointers, no callbacks — so it is Send + Sync, can be cloned freely across threads, and remains safe to use after the scheduler has been consumed (by wait()/stop()/abort()) or dropped: from then on snapshot keeps returning the job’s final frozen values with ProgressState::Ended.

Observing progress is pull-based: call snapshot() whenever a fresh value is wanted. Each call is a handful of atomic loads; no locks are taken and no FFmpeg call is made.

Implementations

impl ProgressHandle

pub fn snapshot(&self) -> Progress

Takes a point-in-time snapshot of the job’s progress.

pub fn is_ended(&self) -> bool

Whether every tracked worker of the job has torn down — the same edge wait()/stop() unblock on, and the point at which snapshot values (elapsed included) freeze.

Note this is stricter than FfmpegScheduler::is_ended, which reports the terminal status signal (a stopping job answers true there while workers may still be flushing).

Trait Implementations

impl Clone for ProgressHandle

fn clone(&self) -> ProgressHandle

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ProgressHandle

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

Formats the value using the given formatter.