altrefRefreshPeriod property
int
get
altrefRefreshPeriod
Periodic ALTREF refresh schedule, mirroring goldenRefreshPeriod. When > 0, ALTREF is refreshed exactly every Nth inter frame since the last keyframe and the static refreshAltrefOnInter flag is ignored. Default 0 keeps the legacy static behaviour. ALTREF is typically refreshed less often than GOLDEN so it stays available as a much older long-term recovery anchor (e.g. burst-loss fallback that survives a stale golden). Mutable at runtime via setAltrefRefreshPeriod.
Implementation
int get altrefRefreshPeriod => _altrefRefreshPeriod;