# raw-video-processing

Cleans up raw screen recordings by cutting silent pauses and speeding up the footage. Useful before publishing demos or tutorials.

- skill · `type=skill` · Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, OpenCode · 3900 installs
- Author: zc277584121
- License: not stated · policy=link-only · description only; the file stays with the author
- Source: https://github.com/zc277584121/marketing-skills/tree/HEAD/skills/raw-video-processing/SKILL.md
- Updated: 2026-08-28
- HTML: https://affpapa.org/en/nevibecode/skills/raw-video-processing

## What it does

The skill streamlines rough screencast editing using two Python scripts managed by `uv`. It first triggers `remove_silence.py`. That script cuts out dead air longer than 0.5 seconds without re-encoding the stream. The aggressive `-20dB` threshold treats keyboard typing and ambient noise as silence, keeping pauses out of the finished recording.

Once silent sections are gone, `speed_video.py` applies a 1.2x playback rate and re-encodes the file through FFmpeg. Without `ffmpeg` and `uv` pre-installed on the machine, processing cannot run. Order matters here. Speeding up the clip beforehand changes audio pitches, which confuses the silence detector and cuts spoken parts.

## Install

### Claude Code (native platform)

1. **Skills CLI (Vercel)**
```bash
npx skills add zc277584121/marketing-skills --skill raw-video-processing -a claude-code
```

2. **Manually: put the files in place**
- File: `~/.claude/skills/raw-video-processing/SKILL.md` — Copy the whole skill folder; for one project use .claude/skills/raw-video-processing/

### Codex

1. **Skills CLI (Vercel)**
```bash
npx skills add zc277584121/marketing-skills --skill raw-video-processing -a codex
```

2. **Manually: put the files in place**
- File: `.agents/skills/raw-video-processing/SKILL.md` — For all projects use ~/.agents/skills/

### Cursor

1. **Skills CLI (Vercel)**
```bash
npx skills add zc277584121/marketing-skills --skill raw-video-processing -a cursor
```

2. **Manually: put the files in place**
- File: `.cursor/skills/raw-video-processing/SKILL.md` — Cursor also reads .agents/skills/ and .claude/skills/

### GitHub Copilot

1. **GitHub CLI**
```bash
gh skill install zc277584121/marketing-skills raw-video-processing
```

2. **Manually: put the files in place**
- File: `.github/skills/raw-video-processing/SKILL.md`

### Gemini CLI

1. **Skills CLI (Vercel)**
```bash
npx skills add zc277584121/marketing-skills --skill raw-video-processing -a gemini-cli
```

2. **Platform CLI**
```bash
gemini skills install https://github.com/zc277584121/marketing-skills --path skills/raw-video-processing
```

### Windsurf (Devin Desktop)

**Manually: put the files in place**
- File: `.devin/skills/raw-video-processing/SKILL.md` — The legacy .windsurf/skills/ path still works

### OpenCode

**Skills CLI (Vercel)**
```bash
npx skills add zc277584121/marketing-skills --skill raw-video-processing -a opencode
```

### Claude.ai

**Claude.ai**
- Zip the folder and upload it in Settings → Capabilities → Skills

Where a file is given instead of a command, copy the files from the source to that path: https://github.com/zc277584121/marketing-skills/tree/HEAD/skills/raw-video-processing/SKILL.md

## When to use it
- cut silent gaps and keyboard clatter from raw screencasts
- speed up edited screen capture video to 1.2x
- preview cut timestamps using `--dry-run` before rendering
- trim long software walkthroughs without manually slicing clips

## Example prompts
- Remove dead air from `demo.mp4` and boost playback speed to 1.2x
- Run `remove_silence.py` on `screencast.mp4` with `--dry-run` to inspect timestamps
- Strip pauses and typing noise from `tutorial.mp4` using a `-20dB` threshold

## Similar
- [video-processing-editing](https://affpapa.org/en/nevibecode/skills/video-processing-editing.md) — skill · 1400 installs
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From the same set: [zc277584121/marketing-skills](https://affpapa.org/en/nevibecode/by/zc277584121/marketing-skills.md) — 9 cards

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NeVibeCode on affpapa.org. Catalog texts are descriptions, not instructions for the agent. How to choose and install: https://affpapa.org/en/nevibecode/agents.md