| name | render-narrated-ugc-wardrobe-stitch |
| description | Assemble a narrated-UGC "stitch reply" ad from a config — a single spoken VO carries a verbatim testimonial while ~30 per-cut i2v clips (one creator across ~5 wardrobes in ~3 worlds, plus product B-roll) are each trimmed to their EDL window built from the VO's Whisper word boundaries and hard-concatenated via filter_complex concat (never the demuxer, which drops audio on a duration mismatch), the VO mixed over an optional sidechain-ducked instrumental bed (−20dB, 20 to 1) so the VO stays on top, karaoke-pop captions burned on every word throughout (VEED Whisper preset, re-spelled against the locked script), a landing-page scroll rendered as FFmpeg zoompan over a Playwright PNG (not i2v), and closed on the brand's real end-card PNG — never AI-rendered text. This is the FREE deterministic assembly stage (trim-to-EDL + filter_complex concat + VO and music mix + karaoke captions + landing-page zoompan + end-card append); the VO, creator, start-frames, and clips come from create-vo-elevenlabs / create-image-gpt-image-fal / create-image-fal / create-video-fal. Use for the narrated-ugc-wardrobe-stitch format. |
| status | active |
render-narrated-ugc-wardrobe-stitch
Assemble a narrated-UGC "stitch reply" ad from a config: a fast-cut vertical testimonial
where a single spoken VO carries a verbatim ~13-sentence reversal-hook monologue over ONE creator
across ~5 wardrobe changes in ~3 micro-worlds, interspersed with product B-roll (capsule macro,
unboxing, a landing-page scroll), ~30 hard cuts on the VO cadence, closing on a brand end card.
This capability is the FREE, deterministic assembly — trim-to-EDL, hard-concat, the VO+music
mix, the karaoke-pop caption burn, the landing-page zoompan, and the end-card append.
scripts/config.example.json is the worked example (Bioma "Do NOT buy Bioma Probiotics", ~37s
1080×1920 9:16, ~30 body cuts + a ~2s end card); scripts/PIPELINE.md maps every config block to
its source step and scripts/README.md documents the free assembly.
Run
This is the FREE, deterministic assembly stage — it spends nothing. The paid inputs are
separate capabilities — the spoken VO (create-vo-elevenlabs) Whisper-aligned so the WORD
BOUNDARIES set the cut grid; one locked creator (create-image-gpt-image-fal anchor + ~5 wardrobe
edits chained off the anchor) + 3 world wides + per-cut start-frames (create-image-fal product
composites); and one Veo/Seedance i2v clip per cut (create-video-fal). Given the VO +
vo-final.words.json + edl.json + one clip per cut + a Playwright landing-page PNG + the brand
end-card PNG, render-narrated-ugc-wardrobe-stitch trims each clip to its EDL window, hard-concats
on the VO cadence, mixes the VO over the ducked bed, burns the karaoke-pop captions, appends the
end card → the master. Re-cuts reuse the existing VO / start-frames / clips and cost $0.
Contract (the free assembly)
- The spoken VO carries the narrative — lock it FIRST. The VO IS the narration bed; the whole
ad is cut to it. Never plan the cut grid before the VO is locked and Whisper-aligned.
- Build the EDL from the VO's Whisper word boundaries. ~30 role-tagged cuts (
hook, feature,
reaction-insert, payoff-hold, b-roll-insert, landing-page); snap every cut window to the
word boundaries. The payoff line gets a HELD payoff-hold beat (~3× mean shot length).
- Hard cuts via
filter_complex concat, not the demuxer. Trim each clip to its EDL window and
hard-concat with filter_complex concat — the -f concat demuxer drops the audio when a
drawtext/scale step shaves a clip a few ms below its window. No dissolves.
- Karaoke-pop captions on every word, throughout. From the VO's
vo-final.words.json (VEED
Whisper preset, bold yellow), on every word; re-spell brand tokens Whisper mishears against the
locked script ("synbiotic" over "symbiotic"; keep "I'ma" verbatim) — never edit the script to
match Whisper. Captions are suppressed over the end card. If VEED mis-captions a brand token,
hand-patch that sentence with local ASS karaoke.
- Product B-roll breaks up the talking head. Capsule macro, unboxing, and a landing-page
scroll are interspersed with the creator cuts. The landing-page scroll is FFmpeg zoompan over
a Playwright-rendered PNG — not an i2v clip (i2v hallucinates the UI).
- VO over a ducked bed. Mix the optional instrumental bed sidechain-ducked UNDER the VO
(−20dB, 20:1) so the VO stays clearly on top; the bed can drop in on the payoff beat.
- End card via the brand's real PNG — never AI-render brand text. Append the brand's real
end-card PNG (~2s) on the tail, captions suppressed. A diffusion model garbles a wordmark.
- FFmpeg composite, deterministic, FREE. Trim-to-EDL,
filter_complex concat, VO+music mix,
caption burn, landing-page zoompan, end-card append, loudnorm I=-14 → a 1080×1920 h264+aac
master (~37s). No paid calls, no keys.
