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@opendj/sync

v0.1.2

Published

Song timing/synchronization primitives, normalized progress helpers, and sync adapter contracts.

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Readme

@opendj/sync

Runtime-neutral song-timing primitives. Used by @opendj/lyrics and any adapter that needs approximate playback position (lyrics, lighting, visualizers, beat grids).

Contents (planned — see docs/agent-brief.md §"Song synchronization architecture"):

  • PlaybackClockSample, PredictedPlaybackPosition
  • SongSyncAdapter<TCue> interface
  • SyncCue discriminated union (lyric / lighting / visual / custom)
  • Helpers: createPlaybackClockSample, predictPlaybackPosition, normalizeProgress, findActiveCues, findUpcomingCues

Does not promise frame-perfect or beat-perfect timing. Confidence decays with sample age; clients interpolate locally and accept correction events from the realtime room.