feat(agent): store ffmpeg's actual failure reason in the job's error field

sample_frames_from_url now returns (frames, reason) — reason carries the SPECIFIC cause on failure (ffmpeg's stderr tail, e.g. "moov atom not found", or the timeout) instead of only logging it agent-side. The worker folds it into the failure it reports, so curator's GpuJob.error reads e.g. no frames sampled from video — ffmpeg exit 183: moov atom not found ... instead of the bare "(unprocessable)". The errored-jobs list becomes self-describing: after a retry sweep, surviving errors name their real defect without needing the agent log. Return-value plumbing (not shared state) so concurrent downloaders stay isolated. Agent VERSION → 2026-07-02.2. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-01 22:01:20 -04:00
parent 686808d3f3
commit 1b1d3732dc
3 changed files with 27 additions and 17 deletions
@@ -21,7 +21,7 @@ log = logging.getLogger("fc_agent.app")
 # Bump on every agent change. The page embeds this and /status reports it; the UI
 # warns to reload when they differ — so a stale browser-cached page can't be
 # mistaken for "the new image didn't deploy". (Belt-and-braces with no-store.)
-VERSION = "2026-07-02.1 · short videos sample again (select, not fps) + ffmpeg errors logged"
+VERSION = "2026-07-02.2 · job.error now carries ffmpeg's actual failure reason"

 logbuf.install()
 cfg = Config.from_env()