Struct PlaybackClock 

pub struct PlaybackClock { /* private fields */ }

Audio-anchored song clock: GetlocP anchor + tick interpolation.

Feed it your per-display-frame tick counter (the same one you pass to PlaybackStarter); construct with that counter’s rate (60 for NTSC, 50 for PAL). Output is milliseconds into the playing track, smooth every tick, monotonic (never steps backwards), and immune to single-sample GetlocP jitter while still following a genuine seek or track loop.

Implementations

impl PlaybackClock

pub const fn new(ticks_hz: u32) -> Self

A stopped clock counting ticks_hz ticks per second (60 NTSC, 50 PAL).

pub fn start(&mut self, now_tick: u32)

Call once CD-DA playback has actually started (e.g. on the tick PlaybackStarter::tick returns true).

pub fn is_playing(&self) -> bool

Whether PlaybackClock::start has been called.

pub fn tick_on(&mut self, cd: &mut Cd, now_tick: u32) -> u32

Advance and return the current song time in ms. Polls the drive through cd at most once per [RESYNC_TICKS]; interpolates otherwise.