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Run3 video frame extraction

Skill cxcscmu/SkillLearnBench/skills/b3-teacher-feedback-gemini-3.1-flash-lite-preview/video-object-counting/run3_video_frame_extraction

Use ffmpeg to extract keyframes from a video file into a target directory.From its SKILL.md

Install
npx -y skills add cxcscmu/SkillLearnBench --skill run3_video_frame_extraction

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

SKILL.md

0.5 KB, 107 tokens by cl100k_base, as published. Nobody here has run it

To extract keyframes from /root/super-mario.mp4 and save them as PNG files in the /root/ directory, use the following FFmpeg command:

ffmpeg -i /root/super-mario.mp4 -vf "select='eq(pict_type,I)'" -vsync vfr /root/keyframes_%03d.png

This command extracts only the I-frames (key frames) and saves them with the required naming convention (/root/keyframes_%03d.png).

What ships with it

Read from the repository

Just SKILL.md. No reference files, no scripts.

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