AgentSkillsCN

video-frames

使用 ffmpeg 从视频文件中提取帧，用于分析或处理。

SKILL.md
--- frontmatter
name: video-frames
description: Extract frames from video files using ffmpeg for analysis or processing.
metadata: {"openclaw":{"emoji":"🎬","requires":{"bins":["ffmpeg"]}}}

Video Frames

Extract frames from video files.

Extract a Single Frame

bash
ffmpeg -i video.mp4 -ss 00:00:05 -frames:v 1 /tmp/frame.jpg

Extract Frames at Interval

bash
# One frame every 10 seconds
ffmpeg -i video.mp4 -vf "fps=1/10" /tmp/frames/frame_%04d.jpg

Extract Key Frames Only

bash
ffmpeg -i video.mp4 -vf "select=eq(pict_type\\,I)" -vsync vfr /tmp/keyframes/kf_%04d.jpg

Create Thumbnail Grid

bash
ffmpeg -i video.mp4 -vf "fps=1/30,scale=160:90,tile=5x4" /tmp/thumbnails.jpg

Get Video Info

bash
ffprobe -v quiet -print_format json -show_streams video.mp4