Requirements
- Target platform
- OpenClaw
- Install method
- Manual import
- Extraction
- Extract archive
- Prerequisites
- OpenClaw
- Primary doc
- SKILL.md
Tencent SkillHub ยท Developer Tools
Donson 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
FFmpeg Master
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
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
Code helpers, APIs, CLIs, browser automation, testing, and developer operations.
Source: Tencent SkillHub
Largest current source with strong distribution and engagement signals.
Package contents
Included in package
1 Docs
- SKILL.md