New end-to-end pipeline for building thematic documentary montages from
a locally-indexed corpus of free stock footage (Pexels, Archive.org,
NASA). The agent builds a project-local corpus, CLIP-ranks candidates
per scene slot, edits with motion-aware arc logic, and composes via
ffmpeg. No paid APIs required for the full path.
Pipeline definition and director skills:
- pipeline_defs/documentary-montage.yaml: 5-stage manifest
(idea -> scene_plan -> assets -> edit -> compose)
- skills/pipelines/documentary-montage/: 6 director skills
(executive-producer + idea/scene/asset/edit/compose directors)
Corpus and retrieval infrastructure:
- tools/video/corpus_builder.py: multi-source stock fan-out with
resumable append-only corpus index
- tools/video/clip_search.py: CLIP ViT-B/32 retrieval —
rank_for_slot, find_similar_set, diversify, stats
- tools/video/stock_sources/: base + pexels + archive_org + nasa
adapters with a pluggable BaseStockSource contract
- lib/clip_embedder.py: CLIP wrapper
- lib/corpus.py: corpus schema, jsonl append/read, motion-score
caching
video_compose fix rolled in because any concat-based pipeline depends
on it:
- Replace ambiguous -to with -t duration (was double-trimming cuts)
- Force re-encode + normalize to 1920x1080 @ 30fps (was keyframe-
snapping with -c copy and breaking concat on mixed-source corpora)
- Add silent-audio anullsrc fallback for clips without an audio
stream
README: add Documentary Montage row to the pipeline table and bump
the pipeline count from 11 to 12.
44baede67f