wjs-editing-multicam
Use when the user has 2+ recordings of the same event (each with a `.sync.json` sidecar from wjs-syncing-multicam) and wants them combined into a single MP4 — auto-switching between cams second-by-second on audio energy, with optional picture-in-picture inset. Triggers — "auto-edit multicam", "做个剪辑", "切几个机位", "把这几个视频合成一个", "combine these angles", "PiP overlay".
npx skills add jianshuo/claude-skills --skill wjs-editing-multicam --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# wjs-editing-multicam Combine N synced camera angles into a single rendered MP4. Decisions are audio-energy-driven only — the cam with the loudest mic each second wins. Output is hard cuts (or hard cuts plus a corner PiP). ## Setup & commands The implementation lives in the open-source **`polysync`** pip package (<https://pypi.org/project/polysync/> · <https://github.com/jianshuo/polysync>) — this skill no longer ships its own scripts. Install it, then drive it via its CLI: ```bash python3 -m pip install -U polysync # needs ffmpeg/ffprobe on PATH polysync edit CAM_A CAM_B CAM_C --out edl.json # build the decision list polysync render-cuts edl.json --out out.mp4 # hard cuts polysync render-pip edl.json --out out.mp4 --pip bottom-right # cuts + corner inset ``` `edit` and the renderers read each input's `.sync.json` automatically. Sync first with **wjs-syncing-multicam** (`polysync sync`) if the sidecars don't exist yet. Render flags for raw camera footage (see **Preflight** below for when to use each): ```bash # Sony S-Log3 footage, shot vertical, FX6 cams turned on their side, for 小红书: polysync render-cuts edl.json --out out.mp4 \ --log slog3 \ # S-Log3/S-Gamut3.Cine -> Rec.709 gr
- Setup & commands
- Preflight — ALWAYS check raw footage before rendering (hard-won)
- Editing quality — when polysync edit isn't enough
- What this skill IS — and IS NOT
- REQUIRED INPUT
- When NOT to use
- Pipeline
- EDL schema (edl.json)
- Render
- Brainstorm before running
- File layout
- Common pitfalls
python3 -m pip install -U polysync # needs ffmpeg/ffprobe on PATH polysync edit CAM_A CAM_B CAM_C --out edl.json # build the decision list polysync render-cuts edl.json --out out.mp4 # hard cuts polysync render-pip edl.json --out out.mp4 --pip bottom-right # cuts + corner inset Sony S-Log3 footage, shot vertical, FX6 cams turned on their side, for 小红书: polysync render-cuts edl.json --out out.mp4 \
What does the wjs-editing-multicam skill do?
Use when the user has 2+ recordings of the same event (each with a `.sync.json` sidecar from wjs-syncing-multicam) and wants them combined into a single MP4 — auto-switching between cams second-by-second on audio energy, with optional picture-in-picture inset. Triggers — "auto-edit multicam", "做个剪辑", "切几个机位", "把这几个视频合成一个", "combine these angles", "PiP overlay".
How do I install it?
Run `npx skills add jianshuo/claude-skills --skill wjs-editing-multicam --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From jianshuo/claude-skills, a repository with 112 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.