Requirements
- Target platform
- OpenClaw
- Install method
- Manual import
- Extraction
- Extract archive
- Prerequisites
- OpenClaw
- Primary doc
- SKILL.md
Tencent SkillHub Β· AI
inSaiAI Intelligent Editing
Use when performing video/audio processing tasks including transcoding, filtering, streaming, metadata manipulation, or complex filtergraph operations with FFmpeg.
skill openclawclawhub Free
Use when performing video/audio processing tasks including transcoding, filtering, streaming, metadata manipulation, or complex filtergraph operations with FFmpeg.
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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
- liudu2326526
- Source page
- View original listing
- Canonical URL
- Open canonical page
Documentation
inSaiAI Intelligent Editing
Comprehensive guide for professional video and audio manipulation using FFmpeg and FFprobe.
Core Concepts
FFmpeg is the leading multimedia framework, able to decode, encode, transcode, mux, demux, stream, filter and play almost anything that humans and machines have created. It is a command-line tool that processes streams through a complex pipeline of demuxers, decoders, filters, encoders, and muxers.
Common Operations
# Basic Transcoding (MP4 to MKV) ffmpeg -i input.mp4 output.mkv # Change Video Codec (to H.265/HEVC) ffmpeg -i input.mp4 -c:v libx265 -crf 28 -c:a copy output.mp4 # Extract Audio (No Video) ffmpeg -i input.mp4 -vn -c:a libmp3lame -q:a 2 output.mp3 # Resize/Scale Video ffmpeg -i input.mp4 -vf "scale=1280:720" output.mp4 # Cut Video (Start at 10s, Duration 30s) ffmpeg -i input.mp4 -ss 00:00:10 -t 00:00:30 -c copy output.mp4 # Fast Precise Cut (Re-encoding only the cut points is complex, so standard re-encoding is safer for precision) ffmpeg -ss 00:00:10 -i input.mp4 -to 00:00:40 -c:v libx264 -crf 23 -c:a aac output.mp4 # Concatenate Files (using demuxer) # Create filelist.txt: file 'part1.mp4' \n file 'part2.mp4' ffmpeg -f concat -safe 0 -i filelist.txt -c copy output.mp4 # Speed Up/Slow Down Video (2x speed) ffmpeg -i input.mp4 -filter_complex "[0:v]setpts=0.5*PTS[v];[0:a]atempo=2.0[a]" -map "[v]" -map "[a]" output.mp4
Codecs & Quality
OptionUse When-c:v libx264Standard H.264 encoding (best compatibility)-c:v libx265H.265/HEVC encoding (best compression/quality)-crf [0-51]Constant Rate Factor (lower is higher quality, 18-28 recommended)-presetEncoding speed vs compression (ultrafast, medium, veryslow)-c:a copyPass-through audio without re-encoding (saves time/quality)
Filters & Manipulation
FilterUse WhenscaleChanging resolution (e.g., scale=1920:-1 for 1080p width)cropRemoving edges (e.g., crop=w:h:x:y)transposeRotating video (1=90deg CW, 2=90deg CCW)fpsChanging frame rate (e.g., fps=30)drawtextAdding text overlays/watermarksoverlayPicture-in-picture or adding image watermarksfadeAdding fade-in/out effects (e.g., fade=in:0:30 for first 30 frames)volumeAdjusting audio levels (e.g., volume=1.5 for 150% volume)setptsChanging video speed (e.g., setpts=0.5*PTS for double speed)atempoChanging audio speed without pitch shift (0.5 to 2.0)
Inspection & Metadata
Tool/OptionUse Whenffprobe -v error -show_format -show_streamsGetting detailed technical info of a file-metadata title="Name"Setting global metadata tags-mapSelecting specific streams (e.g., -map 0:v:0 -map 0:a:1)
Advanced: Complex Filtergraphs
Use filter_complex when you need to process multiple inputs or create non-linear filter chains. # Example: Adding a watermark at the bottom right ffmpeg -i input.mp4 -i watermark.png -filter_complex "overlay=main_w-overlay_w-10:main_h-overlay_h-10" output.mp4 # Example: Vertical Stack (2 videos) ffmpeg -i top.mp4 -i bottom.mp4 -filter_complex "vstack=inputs=2" output.mp4 # Example: Side-by-Side (2 videos) ffmpeg -i left.mp4 -i right.mp4 -filter_complex "hstack=inputs=2" output.mp4 # Example: Grid (4 videos 2x2) ffmpeg -i v1.mp4 -i v2.mp4 -i v3.mp4 -i v4.mp4 -filter_complex "[0:v][1:v]hstack=inputs=2[top];[2:v][3:v]hstack=inputs=2[bottom];[top][bottom]vstack=inputs=2" output.mp4 # Example: Fade Transition (Simple crossfade between two clips) # Requires manual offset calculation, using xfade is better ffmpeg -i input1.mp4 -i input2.mp4 -filter_complex "xfade=transition=fade:duration=1:offset=9" output.mp4
1. High-Quality GIF Creation
Standard conversion often results in poor colors. Use a palette for best results: ffmpeg -i input.mp4 -vf "fps=15,scale=480:-1:flags=lanczos,split[s0][s1];[s0]palettegen[p];[s1][p]paletteuse" output.gif
2. Audio Mixing (Background Music + Voice)
Mix background music at 30% volume with the main audio: ffmpeg -i voice.mp4 -i bgm.mp3 -filter_complex "[1:a]volume=0.3[bg];[0:a][bg]amix=inputs=2:duration=first" -c:v copy output.mp4
3. Video Stabilization
Two-pass process to fix shaky footage: # Pass 1: Analyze ffmpeg -i shaky.mp4 -vf vidstabdetect -f null - # Pass 2: Transform ffmpeg -i shaky.mp4 -vf vidstabtransform,unsharp=5:5:0.8:3:3:0.4 output.mp4
4. Color Correction & Enhancement
Adjust brightness, contrast, and saturation: # brightness=0.05, contrast=1.1, saturation=1.2 ffmpeg -i input.mp4 -vf "eq=brightness=0.05:contrast=1.1:saturation=1.2" output.mp4
5. Automatic Thumbnail Sheet
Create a 3x3 grid of frames: ffmpeg -i input.mp4 -vf "select='not(mod(n,100))',scale=320:-1,tile=3x3" -frames:v 1 preview.png
6. Remove Silence from Audio
Automatically cut silent parts from the beginning and end: ffmpeg -i input.mp4 -af silenceremove=start_periods=1:start_silence=0.1:start_threshold=-50dB:stop_periods=1:stop_silence=0.1:stop_threshold=-50dB output.mp4
7. Hardsub Burning
Burn SRT/ASS subtitles directly into the video stream: # Burn SRT ffmpeg -i input.mp4 -vf "subtitles=subs.srt" output.mp4 # Burn ASS (supports advanced styling) ffmpeg -i input.mp4 -vf "ass=subs.ass" output.mp4
8. Target File Size Compression
Calculate bitrate to fit a specific file size (e.g., 50MB for 60s video): # Bitrate = (TargetSize_in_bits) / (Duration_in_seconds) # 50MB = 400,000 bits. For 60s, bitrate β 6600k ffmpeg -i input.mp4 -b:v 6000k -maxrate 6000k -bufsize 12000k -c:a aac -b:a 128k output.mp4
9. Scene Change Detection
Extract frames where a scene change is detected (threshold 0.4): ffmpeg -i input.mp4 -filter_complex "select='gt(scene,0.4)',metadata=print:file=scenes.txt" -vsync vfr scene_%03d.png
10. Extracting Frames at Specific Intervals
Extract one frame every 5 seconds: ffmpeg -i input.mp4 -vf "fps=1/5" img_%03d.jpg
11. Batch Processing (Shell Snippet)
Convert all .mov files in a directory to .mp4: for f in *.mov; do ffmpeg -i "$f" "${f%.mov}.mp4"; done
12. Live Streaming (RTMP)
Push a local file to a streaming server (YouTube/Twitch): ffmpeg -re -i input.mp4 -c:v libx264 -preset veryfast -b:v 3000k -maxrate 3000k -bufsize 6000k -pix_fmt yuv420p -g 60 -c:a aac -b:a 128k -f flv rtmp://a.rtmp.youtube.com/live2/YOUR_STREAM_KEY
Hardware Acceleration
PlatformCodecCommandNVIDIA (NVENC)H.264-c:v h264_nvencIntel (QSV)H.264-c:v h264_qsvApple (VideoToolbox)H.265-c:v hevc_videotoolbox
Constraints & Error Handling
Stream Mapping: Always use -map for complex files to ensure you get the right audio/subtitle tracks. Seeking: Put -ss before -i for fast seeking (input seeking), or after -i for accurate seeking (output seeking). Format Support: Ensure the output container (extension) supports the codecs you've chosen.
Category context
Agent frameworks, memory systems, reasoning layers, and model-native orchestration.
Source: Tencent SkillHub
Largest current source with strong distribution and engagement signals.
Package contents
Included in package
1 Docs
- SKILL.md