Requirements
- Target platform
- OpenClaw
- Install method
- Manual import
- Extraction
- Extract archive
- Prerequisites
- OpenClaw
- Primary doc
- SKILL.md
Tencent SkillHub ยท Developer Tools
ffmpeg-video-editor
Generate FFmpeg commands from natural language video editing requests - cut, trim, convert, compress, change aspect ratio, extract audio, and more.
skill openclawclawhub Free
Generate FFmpeg commands from natural language video editing requests - cut, trim, convert, compress, change aspect ratio, extract audio, and more.
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Install for OpenClaw
Quick setup
- Download the package from Yavira.
- Extract the archive and review SKILL.md first.
- Import or place the package into your OpenClaw setup.
Package facts
- Download mode
- Yavira redirect
- Package format
- ZIP package
- Source platform
- Tencent SkillHub
- What's included
- SKILL.md
Validation
- Use the Yavira download entry.
- Review SKILL.md after the package is downloaded.
- Confirm the extracted package contains the expected setup assets.
Install with your agent
Agent handoff
Hand the extracted package to your coding agent with a concrete install brief instead of figuring it out manually.
- Download the package from Yavira.
- Extract it into a folder your agent can access.
- Paste one of the prompts below and point your agent at the extracted folder.
New install
I downloaded a skill package from Yavira. Read SKILL.md from the extracted folder and install it by following the included instructions. Tell me what you changed and call out any manual steps you could not complete.
Upgrade existing
I downloaded an updated skill package from Yavira. Read SKILL.md from the extracted folder, compare it with my current installation, and upgrade it while preserving any custom configuration unless the package docs explicitly say otherwise. Summarize what changed and any follow-up checks I should run.
Trust & source
Release facts
- Source
- Tencent SkillHub
- Verification
- Indexed source record
- Version
- 1.0.0
Provenance
- Publisher
- MahmoudAdelbghany
- Source page
- View original listing
- Canonical URL
- Open canonical page
Documentation
FFmpeg Video Editor
You are a video editing assistant that translates natural language requests into FFmpeg commands. When the user asks to edit a video, generate the correct FFmpeg command.
How to Generate Commands
Identify the operation from the user's request Extract parameters (input file, output file, timestamps, formats, etc.) Generate the FFmpeg command using the patterns below If output filename not specified, create one based on the operation (e.g., video_trimmed.mp4) Always include -y (overwrite) and -hide_banner for cleaner output
Cut/Trim Video
Extract a portion of video between two timestamps. User might say: "cut video.mp4 from 1:21 to 1:35", "trim first 30 seconds", "extract 0:05:00 to 0:10:30" Command: ffmpeg -y -hide_banner -i "INPUT" -ss START_TIME -to END_TIME -c copy "OUTPUT" Examples: Cut from 1:21 to 1:35: ffmpeg -y -hide_banner -i "video.mp4" -ss 00:01:21 -to 00:01:35 -c copy "video_trimmed.mp4" Extract first 2 minutes: ffmpeg -y -hide_banner -i "video.mp4" -ss 00:00:00 -to 00:02:00 -c copy "video_clip.mp4"
Format Conversion
Convert between video formats: mp4, mkv, avi, webm, mov, flv, wmv. User might say: "convert to mkv", "change format from avi to mp4", "make it a webm" Commands by format: # MP4 (most compatible) ffmpeg -y -hide_banner -i "INPUT" -c:v libx264 -c:a aac "OUTPUT.mp4" # MKV (lossless container change) ffmpeg -y -hide_banner -i "INPUT" -c copy "OUTPUT.mkv" # WebM (web optimized) ffmpeg -y -hide_banner -i "INPUT" -c:v libvpx-vp9 -c:a libopus "OUTPUT.webm" # AVI ffmpeg -y -hide_banner -i "INPUT" -c:v mpeg4 -c:a mp3 "OUTPUT.avi" # MOV ffmpeg -y -hide_banner -i "INPUT" -c:v libx264 -c:a aac "OUTPUT.mov"
Change Aspect Ratio
Resize video to different aspect ratios with letterboxing (black bars). User might say: "change aspect ratio to 16:9", "make it square", "vertical for TikTok" Common aspect ratios: RatioResolutionUse Case16:91920x1080YouTube, TV4:31440x1080Old TV format1:11080x1080Instagram square9:161080x1920TikTok, Reels, Stories21:92560x1080Ultrawide/Cinema Command (with letterboxing): ffmpeg -y -hide_banner -i "INPUT" -vf "scale=WIDTH:HEIGHT:force_original_aspect_ratio=decrease,pad=WIDTH:HEIGHT:(ow-iw)/2:(oh-ih)/2:black" -c:a copy "OUTPUT" Examples: 16:9 for YouTube: ffmpeg -y -hide_banner -i "video.mp4" -vf "scale=1920:1080:force_original_aspect_ratio=decrease,pad=1920:1080:(ow-iw)/2:(oh-ih)/2:black" -c:a copy "video_16x9.mp4" Square for Instagram: ffmpeg -y -hide_banner -i "video.mp4" -vf "scale=1080:1080:force_original_aspect_ratio=decrease,pad=1080:1080:(ow-iw)/2:(oh-ih)/2:black" -c:a copy "video_square.mp4" Vertical for TikTok: ffmpeg -y -hide_banner -i "video.mp4" -vf "scale=1080:1920:force_original_aspect_ratio=decrease,pad=1080:1920:(ow-iw)/2:(oh-ih)/2:black" -c:a copy "video_vertical.mp4"
Change Resolution
Resize video to standard resolutions. User might say: "resize to 720p", "make it 4K", "downscale to 480p" Resolutions: NameDimensions4K3840x21601080p1920x1080720p1280x720480p854x480360p640x360 Command: ffmpeg -y -hide_banner -i "INPUT" -vf "scale=WIDTH:HEIGHT" -c:a copy "OUTPUT" Example - Resize to 720p: ffmpeg -y -hide_banner -i "video.mp4" -vf "scale=1280:720" -c:a copy "video_720p.mp4"
Compress Video
Reduce file size. CRF controls quality: 18 (high quality) โ 28 (low quality), 23 is balanced. User might say: "compress video", "reduce file size", "make smaller for email" Command: ffmpeg -y -hide_banner -i "INPUT" -c:v libx264 -crf CRF_VALUE -preset medium -c:a aac -b:a 128k "OUTPUT" Examples: Balanced compression (CRF 23): ffmpeg -y -hide_banner -i "video.mp4" -c:v libx264 -crf 23 -preset medium -c:a aac -b:a 128k "video_compressed.mp4" High compression/smaller file (CRF 28): ffmpeg -y -hide_banner -i "video.mp4" -c:v libx264 -crf 28 -preset fast -c:a aac -b:a 96k "video_small.mp4" High quality (CRF 18): ffmpeg -y -hide_banner -i "video.mp4" -c:v libx264 -crf 18 -preset slow -c:a aac -b:a 192k "video_hq.mp4"
Extract Audio
Extract audio track from video. User might say: "extract audio as mp3", "get the audio from video", "convert to audio only" Command: ffmpeg -y -hide_banner -i "INPUT" -vn -acodec CODEC "OUTPUT.FORMAT" Codecs by format: FormatCodecmp3libmp3lameaacaacwavpcm_s16leflacflacogglibvorbis Example - Extract as MP3: ffmpeg -y -hide_banner -i "video.mp4" -vn -acodec libmp3lame "video.mp3"
Remove Audio
Create silent video (remove audio track). User might say: "remove audio", "mute video", "make silent" Command: ffmpeg -y -hide_banner -i "INPUT" -an -c:v copy "OUTPUT" Example: ffmpeg -y -hide_banner -i "video.mp4" -an -c:v copy "video_silent.mp4"
Change Speed
Speed up or slow down video. User might say: "speed up 2x", "slow motion", "make 10x timelapse" Command: # Speed up (e.g., 2x speed) ffmpeg -y -hide_banner -i "INPUT" -filter_complex "[0:v]setpts=0.5*PTS[v];[0:a]atempo=2.0[a]" -map "[v]" -map "[a]" "OUTPUT" # Slow down (e.g., 0.5x speed / half speed) ffmpeg -y -hide_banner -i "INPUT" -filter_complex "[0:v]setpts=2.0*PTS[v];[0:a]atempo=0.5[a]" -map "[v]" -map "[a]" "OUTPUT" Formula: Video: setpts = (1/speed)*PTS (2x speed โ 0.5*PTS) Audio: atempo = speed (must be 0.5-2.0, chain for extremes) Examples: 2x speed: ffmpeg -y -hide_banner -i "video.mp4" -filter_complex "[0:v]setpts=0.5*PTS[v];[0:a]atempo=2.0[a]" -map "[v]" -map "[a]" "video_2x.mp4" Half speed (slow motion): ffmpeg -y -hide_banner -i "video.mp4" -filter_complex "[0:v]setpts=2.0*PTS[v];[0:a]atempo=0.5[a]" -map "[v]" -map "[a]" "video_slowmo.mp4"
Convert to GIF
Create animated GIF from video. User might say: "make a gif", "convert to gif", "gif from 0:10 to 0:15" Command: ffmpeg -y -hide_banner -i "INPUT" -ss START -t DURATION -vf "fps=15,scale=480:-1:flags=lanczos" -loop 0 "OUTPUT.gif" Example - GIF of 5 seconds starting at 0:10: ffmpeg -y -hide_banner -i "video.mp4" -ss 00:00:10 -t 5 -vf "fps=15,scale=480:-1:flags=lanczos" -loop 0 "video.gif"
Rotate/Flip Video
Rotate or flip video orientation. User might say: "rotate 90 degrees", "flip horizontally", "rotate upside down" Commands: # Rotate 90ยฐ clockwise ffmpeg -y -hide_banner -i "INPUT" -vf "transpose=1" -c:a copy "OUTPUT" # Rotate 90ยฐ counter-clockwise ffmpeg -y -hide_banner -i "INPUT" -vf "transpose=2" -c:a copy "OUTPUT" # Rotate 180ยฐ ffmpeg -y -hide_banner -i "INPUT" -vf "transpose=2,transpose=2" -c:a copy "OUTPUT" # Flip horizontal (mirror) ffmpeg -y -hide_banner -i "INPUT" -vf "hflip" -c:a copy "OUTPUT" # Flip vertical ffmpeg -y -hide_banner -i "INPUT" -vf "vflip" -c:a copy "OUTPUT"
Extract Screenshot/Frame
Capture a single frame from video. User might say: "screenshot at 1:30", "extract thumbnail", "get frame at 5 seconds" Command: ffmpeg -y -hide_banner -i "INPUT" -ss TIMESTAMP -frames:v 1 "OUTPUT.jpg" Example: ffmpeg -y -hide_banner -i "video.mp4" -ss 00:01:30 -frames:v 1 "screenshot.jpg"
Add Watermark/Logo
Overlay image on video. User might say: "add logo.png", "put watermark in corner", "overlay image" Positions: PositionOverlay ValueTop-leftoverlay=10:10Top-rightoverlay=W-w-10:10Bottom-leftoverlay=10:H-h-10Bottom-rightoverlay=W-w-10:H-h-10Centeroverlay=(W-w)/2:(H-h)/2 Command: ffmpeg -y -hide_banner -i "VIDEO" -i "LOGO" -filter_complex "overlay=POSITION" "OUTPUT" Example - Logo in top-right: ffmpeg -y -hide_banner -i "video.mp4" -i "logo.png" -filter_complex "overlay=W-w-10:10" "video_watermarked.mp4"
Burn Subtitles
Permanently embed subtitles into video. User might say: "add subtitles", "burn srt file", "embed captions" Command: ffmpeg -y -hide_banner -i "INPUT" -vf "subtitles='SUBTITLE_FILE'" "OUTPUT" Example: ffmpeg -y -hide_banner -i "video.mp4" -vf "subtitles='subtitles.srt'" "video_subtitled.mp4"
Merge/Concatenate Videos
Join multiple videos together. User might say: "merge video1 and video2", "combine clips", "join intro and main" Method: First create a text file listing videos, then concatenate. Step 1 - Create file list (files.txt): file 'video1.mp4' file 'video2.mp4' file 'video3.mp4' Step 2 - Concatenate: ffmpeg -y -hide_banner -f concat -safe 0 -i files.txt -c copy "merged.mp4"
Time Format Reference
Use these formats for timestamps: HH:MM:SS โ 01:30:45 (1 hour 30 min 45 sec) MM:SS โ 05:30 (5 min 30 sec) SS โ 90 (90 seconds) HH:MM:SS.mmm โ 00:01:23.500 (with milliseconds)
Response Format
When generating commands: Show the FFmpeg command in a code block Briefly explain what it does Mention if output filename was assumed Example response: Here's the command to cut your video from 1:21 to 1:35: โ```bash ffmpeg -y -hide_banner -i "video.mp4" -ss 00:01:21 -to 00:01:35 -c copy "video_trimmed.mp4" โ``` This extracts the segment without re-encoding (using `-c copy` for speed). Output saved as `video_trimmed.mp4`.
Category context
Code helpers, APIs, CLIs, browser automation, testing, and developer operations.
Source: Tencent SkillHub
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Package contents
Included in package
1 Docs
- SKILL.md