FFmpeg Key Frame Extraction
SkillFiles & storageExtract key frames (I-frames) from video files using FFmpeg for analysis and processing.
Available today. Use it from your connected AI after setup.
No other account needed.
Connect ahel once, and every AI you use reads what you have installed.
Then ask your AI: use the FFmpeg Key Frame Extraction skill
What this skill tells your AI
The instructions your AI receives, as published by cxcscmu/skilllearnbench in skills/b1-one-shot-claude-opus-4-6/video-object-counting/ffmpeg-keyframes/SKILL.md and read by ahel’s review.
Overview
Extract I-frames (keyframes) from video files. Keyframes are complete frames that don't depend on other frames for decoding.
Command
ffmpeg -i input.mp4 -vf "select=eq(pict_type\,I)" -vsync vfr output_%03d.png
Flags
-vf "select=eq(pict_type\,I)": Select only I-frames (key frames)-vsync vfr: Variable frame rate to avoid duplicate frames%03d: Zero-padded 3-digit numbering
Output
Produces files like output_001.png, output_002.png, etc. in timeline order.
Verify
ffprobe -i input.mp4 -select_streams v -show_frames -show_entries frame=pict_type | grep -c "pict_type=I"
Signals
- GitHub stars
- 83
- Forks
- 5
- Last commit
- Jul 2026
Advanced
- Catalog kind
- skill
- Gateway key
ffmpeg-keyframes- Source
- github.com/cxcscmu/skilllearnbench