Asset Poster Batch
Pre-extract + cache thumbnails for several timestamps in a SINGLE source copy.
The per-frame GET /{id}/poster?t= endpoint copies the whole source on each cache miss, so the
chapters editor (N chapters) would otherwise trigger N full-source copies on first view. This
warms them all at once: copy the source once, extract each missing frame from the local temp file
(fast input-seek), cache as posters/{id}_t{ms}.jpg. Best-effort — returns the ready ms list,
so the editor can then load each poster?t= as a cheap cache hit. RLS via tenant_tx.
Path Parameters
Body
Timestamps (seconds) to pre-extract thumbnails for — the chapters editor sends every chapter start so all frames warm in ONE source copy.
Response
Successful Response
The response is of type Response Asset Poster Batch Api V1 Assets Public Id Poster Batch Post · object.