Scene Video Pipeline

Produce modular scene-based videos from slide deck source and per-scene narration audio (text manifest + Kokoro). Includes Playwright slide rendering, per-scene clip generation, and final stitch via editable order file for easy reordering/splicing without full rerender.

Use this skill when you need movie-style modular production:

• per-scene narration
• per-scene rendered clips
• final assembly from an order file

This allows quick cut/splice/reorder/insert changes without regenerating the whole video.

Directory Contract

<module_dir>/
  slides/deck.html
  slides/01.png ...
  tts/
    manifest.csv
    audio/01.mp3 ...
  dist/
    scenes/01.mp4 ...
    scene-order.txt
    module-first-cut.mp4

Commands

1) Render slides from deck source (Playwright)

# project helper wrapper (solana-academy)
projects/solana-academy/content-production/scripts/render-slides.sh <module_dir>

2) Generate narration audio (Kokoro local)

scripts/generate_tts_kokoro.sh <module_dir> [voice] [speed]

3) Build per-scene clips

scripts/build_scenes.sh <module_dir>

4) Stitch final from ordered scene list

scripts/stitch_scenes.sh <module_dir> [order_file]

Workflow

1. Draft deck source (slides/deck.html) and scripts.
2. Render slide PNGs via Playwright.
3. Generate audio from manifest.
4. Build scene clips.
5. QA scene-by-scene.
6. Adjust scene-order.txt for narrative edits.
7. Stitch final cut.

Notes

• Keep scene filenames zero-padded (01.mp4, 02.mp4) to preserve stable sorting.
• For reorder-only edits, rerun stitch only.
• For a single content fix, rerender only the affected scene clip and restitch.

Files

• scripts/generate_tts_kokoro.sh
• scripts/build_scenes.sh
• scripts/stitch_scenes.sh