How do I install the Ffmpeg Keyframe Extraction skill?

Run npx skillmds@latest add tomevault-io/ffmpeg-keyframe-extraction in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Ffmpeg Keyframe Extraction safe to use?

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Which AI agents work with Ffmpeg Keyframe Extraction?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Ffmpeg Keyframe Extraction free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Ffmpeg Keyframe Extraction?

tomevault-io (@tomevault-io) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Ffmpeg Keyframe Extraction by tomevault-io

Name: Ffmpeg Keyframe Extraction
Author: tomevault-io

Ffmpeg Keyframe Extraction

Extract key frames (I-frames) from video files using FFmpeg command line tool. Use this skill when the user needs to pull out keyframes, thumbnails, or important frames from MP4, MKV, AVI, or other video formats for analysis, previews, or processing. Use when this capability is needed.

tomevault-io Updated Sep 17, 2026

File contents

FFmpeg Keyframe Extraction

Extract key frames (I-frames) from video files using FFmpeg CLI.

Prerequisites

FFmpeg installed and available in PATH
Input video file (MP4, MKV, AVI, MOV, etc.)

Methods

Method 1: Select Filter (More Control)

ffmpeg -i <input_video> -vf "select='eq(pict_type,I)'" -vsync vfr <output_pattern>
Method 2: Skip Frame (Faster)

ffmpeg -skip_frame nokey -i <input_video> -vsync vfr <output_pattern>
Key Options
Option	Description
-i <file>	Input video file
-vf "select='eq(pict_type,I)'"	Filter selecting only I-frames
-skip_frame nokey	Skip decoding non-keyframes (performance)
-vsync vfr	Variable frame rate, prevents duplicates
-q:v <n>	Quality (1-31, lower = better, for JPEG)
-frame_pts 1	Use presentation timestamp in filename
Output Patterns
frame_%03d.png - PNG sequence (frame_001.png, frame_002.png...)
frame_%03d.jpg - JPEG sequence
frame_%d.bmp - BMP sequence
Examples
Basic PNG extraction:

ffmpeg -i video.mp4 -vf "select='eq(pict_type,I)'" -vsync vfr keyframe_%03d.png High-quality JPEG:

ffmpeg -i video.mp4 -skip_frame nokey -vsync vfr -q:v 2 keyframe_%03d.jpg With timestamps:

ffmpeg -i video.mp4 -vf "select='eq(pict_type,I)'" -vsync vfr -frame_pts 1 keyframe_%d.png


To specific directory:

ffmpeg -i video.mp4 -vf "select='eq(pict_type,I)'" -vsync vfr ./output/keyframe_%03d.png


## Notes
Method 2 (-skip_frame nokey) is faster as it skips decoding non-keyframes
Method 1 offers more filtering flexibility (can combine with other filters)
Keyframe frequency depends on video encoding settings
Use -vsync vfr to avoid duplicate frames in output

---
> Converted and distributed by [TomeVault](https://tomevault.io/claim/benchflow-ai) — claim your Tome and manage your conversions.
<!-- tomevault:4.0:skill_md:2026-04-11 -->

---name: ffmpeg-keyframe-extractiondescription: Extract key frames (I-frames) from video files using FFmpeg command line tool. Use this skill when the user needs to pull out keyframes, thumbnails, or important frames from MP4, MKV, AVI, or other video formats for analysis, previews, or processing. Use when this capability is needed.---# FFmpeg Keyframe ExtractionExtract key frames (I-frames) from video files using FFmpeg CLI.## Prerequisites- FFmpeg installed and available in PATH- Input video file (MP4, MKV, AVI, MOV, etc.)## Methods### Method 1: Select Filter (More Control)```bashffmpeg -i <input_video> -vf "select='eq(pict_type,I)'" -vsync vfr <output_pattern>Method 2: Skip Frame (Faster)ffmpeg -skip_frame nokey -i <input_video> -vsync vfr <output_pattern>Key OptionsOption Description-i <file> Input video file-vf "select='eq(pict_type,I)'" Filter selecting only I-frames-skip_frame nokey Skip decoding non-keyframes (performance)-vsync vfr Variable frame rate, prevents duplicates-q:v <n> Quality (1-31, lower = better, for JPEG)-frame_pts 1 Use presentation timestamp in filenameOutput Patternsframe_%03d.png - PNG sequence (frame_001.png, frame_002.png...)frame_%03d.jpg - JPEG sequenceframe_%d.bmp - BMP sequenceExamplesBasic PNG extraction:```ffmpeg -i video.mp4 -vf "select='eq(pict_type,I)'" -vsync vfr keyframe_%03d.pngHigh-quality JPEG:``````ffmpeg -i video.mp4 -skip_frame nokey -vsync vfr -q:v 2 keyframe_%03d.jpgWith timestamps:``````ffmpeg -i video.mp4 -vf "select='eq(pict_type,I)'" -vsync vfr -frame_pts 1 keyframe_%d.png```To specific directory:```ffmpeg -i video.mp4 -vf "select='eq(pict_type,I)'" -vsync vfr ./output/keyframe_%03d.png```## NotesMethod 2 (-skip_frame nokey) is faster as it skips decoding non-keyframesMethod 1 offers more filtering flexibility (can combine with other filters)Keyframe frequency depends on video encoding settingsUse -vsync vfr to avoid duplicate frames in output---> Converted and distributed by [TomeVault](https://tomevault.io/claim/benchflow-ai) — claim your Tome and manage your conversions.

Frequently asked questions