mirror of
https://github.com/heygen-com/hyperframes.git
synced 2026-09-03 04:38:33 +00:00
Miguel Ángel
1a7002f208
* perf(engine): superset extraction for overlapping trims of one source Cache-missing trims of the same source that are frame-aligned and overlapping decode their union window in ONE ffmpeg pass; each trim's frames are materialized by hardlinking the superset frames with renumbered names (copy fallback on EXDEV). Byte-identical to per-trim extraction on CFR sources (verified by content hash in the A/B run), ~2x less decode+encode work for typical overlapping trims, and sparse-keyframe sources pay the keyframe seek once instead of once per trim. Disjoint or misaligned trims keep the direct path; any union failure falls back to per-trim extraction. Also: warm renders (zero cache misses) skip the extraction-cache GC sweep instead of paying a full cache size scan. * fix(engine): superset review hardening - clustering, abort, cache-fs temp, gc staleness - Partition each source's trims into overlap-connected components before the union check, so one disjoint outlier no longer collapses the whole bucket to direct extraction (pinned by a 3-of-4-overlap test). - On abort, the superset fallback no longer re-runs every member through direct extraction (N doomed ffmpeg spawns); the cancellation surfaces per member instead. - The superset temp dir moves onto the cache filesystem when the cache is active so member hardlinks into partial dirs cannot EXDEV-copy and silently multiply disk usage; its .partial- name puts crashed leftovers under the GC's aged-partial sweep. - GC staleness fallback: a .hf-last-gc marker is stamped per sweep and all-hit renders sweep anyway once it is older than 24h, so 100%-warm workloads still reclaim space (pinned by a stale-marker test).