Video and audio processing with format conversion, resizing, compression, and Remotion asset preparation.
Works with
Covers 10+ common operations: GIF-to-MP4 conversion, video resizing, compression, audio extraction, trimming, speed adjustment, concatenation, and fade effects
Includes Remotion-specific patterns for speed adjustment, demo recording preparation, and batch GIF conversion with proper codec settings
Provides platform-specific optimization workflows for YouTube, Twitter/X, LinkedIn,
AI-first code editor with Composer
Before installing skills in Cursor, ensure your development environment meets these requirements:
node --versionffmpegExecute the skills CLI command in your project's root directory to begin installation:
Fetches ffmpeg from digitalsamba/claude-code-video-toolkit and configures it for Cursor.
The CLI shows a list of agents. Use arrow keys and space to select Cursor:
Confirm successful installation by checking the skill directory location:
Restart Cursor to activate ffmpeg. Access via /ffmpeg in your agent's command palette.
We perform automated surface-level scans (Gen AI Scanner, Socket, Snyk) during installation. These checks detect common vulnerabilities but do not guarantee complete security. Always review skill source code and verify the publisher's reputation before production use.
Skills execute code in your environment. Always review source, verify the publisher, and test in isolation before production.
Submit your Claude Code skill and start earning
Create detailed user stories, acceptance criteria, and feature specs
Example
Generate user stories for 'password reset feature' with acceptance criteria, edge cases, and test scenarios
Reduce spec writing time by 50%, ensure comprehensive coverage
Research competitors, compare features, identify gaps
Example
Analyze 5 competitor products, create feature comparison matrix, suggest differentiation opportunities
Complete competitive research in 2 hours instead of 2 days
Evaluate features using frameworks (RICE, ICE, Kano) and create prioritized backlogs
Example
Score 20 feature ideas using RICE framework, generate prioritized roadmap with rationale
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FFmpeg is the essential tool for video/audio processing. This skill covers common operations for Remotion video projects.
ffmpeg -i input.gif -movflags faststart -pix_fmt yuv420p \
-vf "scale=trunc(iw/2)*2:trunc(ih/2)*2" output.mp4
Why these flags:
-movflags faststart - Moves metadata to start for web streaming-pix_fmt yuv420p - Ensures compatibility with most playersscale=trunc(...) - Forces even dimensions (required by most codecs)# To 1920x1080 (maintain aspect ratio, add black bars)
ffmpeg -i input.mp4 -vf "scale=1920:1080:force_original_aspect_ratio=decrease,pad=1920:1080:(ow-iw)/2:(oh-ih)/2" output.mp4
# To 1920x1080 (crop to fill)
ffmpeg -i input.mp4 -vf "scale=1920:1080:force_original_aspect_ratio=increase,crop=1920:1080" output.mp4
# Scale to width, auto height
ffmpeg -i input.mp4 -vf "scale=1280:-2" output.mp4
# Good quality, smaller file (CRF 23 is default, lower = better quality)
ffmpeg -i input.mp4 -c:v libx264 -crf 23 -preset medium -c:a aac -b:a 128k output.mp4
# Aggressive compression for web preview
ffmpeg -i input.mp4 -c:v libx264 -crf 28 -preset fast -c:a aac -b:a 96k output.mp4
# Target file size (e.g., ~10MB for 60s video = ~1.3Mbps)
ffmpeg -i input.mp4 -c:v libx264 -b:v 1300k -c:a aac -b:a 128k output.mp4
# Extract to MP3
ffmpeg -i input.mp4 -vn -acodec libmp3lame -q:a 2 output.mp3
# Extract to AAC
ffmpeg -i input.mp4 -vn -acodec aac -b:a 192k output.m4a
# Extract to WAV (uncompressed)
ffmpeg -i input.mp4 -vn output.wav
# M4A to MP3 (for ElevenLabs voice samples)
ffmpeg -i input.m4a -codec:a libmp3lame -qscale:a 2 output.mp3
# WAV to MP3
ffmpeg -i input.wav -codec:a libmp3lame -b:a 192k output.mp3
# Adjust volume
ffmpeg -i input.mp3 -filter:a "volume=1.5" output.mp3
# Cut from timestamp to duration (recommended - reliable)
ffmpeg -i input.mp4 -ss 00:00:30 -t 00:00:15 -c:v libx264 -c:a aac output.mp4
# Cut from timestamp to timestamp
ffmpeg -i input.mp4 -ss 00:00:30 -to 00:00:45 -c:v libx264 -c:a aac output.mp4
# Stream copy (faster but may lose frames at cut points)
# Only use when source has frequent keyframes
ffmpeg -i input.mp4 -ss 00:00:30 -t 00:00:15 -c copy output.mp4
Note: Re-encoding is recommended for trimming. Stream copy (-c copy) can silently drop video if the seek point doesn't align with a keyframe.
# 2x speed (video and audio)
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
# 0.5x speed (slow motion)
ffmpeg -i input.mp4 -filter_complex "[0:v]setpts=2.0*PTS[v];[0:a]atempo=0.5[a]" -map "[v]" -map "[a]" output.mp4
# Video only (no audio)
ffmpeg -i input.mp4 -filter:v "setpts=0.5*PTS" -an output.mp4
# Create file list
echo "file 'clip1.mp4'" > list.txt
echo "file 'clip2.mp4'" >> list.txt
echo "file 'clip3.mp4'" >> list.txt
# Concatenate (same codec/resolution)
ffmpeg -f concat -safe 0 -i list.txt -c copy output.mp4
# Concatenate with re-encoding (different sources)
ffmpeg -f concat -safe 0 -i list.txt -c:v libx264 -c:a aac output.mp4
# Fade in first 1 second, fade out last 1 second (30fps video)
ffmpeg -i input.mp4 -vf "fade=t=in:st=0:d=1,fade=t=out:st=9:d=1" -c:a copy output.mp4
# Audio fade
ffmpeg -i input.mp4 -af "afade=t=in:st=0:d=1,afade=t=out:st=9:d=1" -c:v copy output.mp4
# Duration, resolution, codec info
ffprobe -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 input.mp4
# Full info
ffprobe -v quiet -print_format json -show_format -show_streams input.mp4
When to use FFmpeg vs Remotion playbackRate:
| Scenario | Use FFmpeg | Use Remotion |
|---|---|---|
| Constant speed (1.5x, 2x) | Either works | ✅ Simpler |
| Extreme speeds (>4x or <0.25x) | ✅ More reliable | May have issues |
| Variable speed (accelerate over time) | ✅ Pre-process | Complex workaround needed |
| Need perfect audio sync | ✅ Guaranteed | Usually fine |
| Demo needs to fit voiceover timing | ✅ Pre-calculate | Runtime adjustment |
Remotion limitation: playbackRate must be constant. Dynamic interpolation like playbackRate={interpolate(frame, [0, 100], [1, 5])} won't work correctly because Remotion evaluates frames independently.
# Speed up demo to fit a scene (e.g., 60s demo into 20s = 3x speed)
ffmpeg -i demo-raw.mp4 \
-filter_complex "[0:v]setpts=0.333*PTS[v];[0:a]atempo=3.0[a]" \
-map "[v]" -map "[a]" \
public/demos/demo-fast.mp4
# Slow motion for emphasis (0.5x speed)
ffmpeg -i action.mp4 \
-filter_complex "[0:v]setpts=2.0*PTS[v];[0:a]atempo=0.5[a]" \
-map "[v]" -map "[a]" \
public/demos/action-slow.mp4
# Speed up without audio (common for screen recordings)
ffmpeg -i demo.mp4 -filter:v "setpts=0.5*PTS" -an public/demos/demo-2x.mp4
# Timelapse effect (10x speed, drop audio)
ffmpeg -i long-demo.mp4 -filter:v "setpts=0.1*PTS" -an public/demos/timelapse.mp4
Calculate speed factor:
speed = X / Y1 / speed (e.g., 3x speed = setpts=0.333*PTS)speed (e.g., 3x speed = atempo=3.0)Extreme speed (>2x audio): Chain atempo filters (each limited to 0.5-2.0 range):
# 4x speed audio
-filter_complex "[0:a]atempo=2.0,atempo=2.0[a]"
# 8x speed audio
-filter_complex "[0:a]atempo=2.0,atempo=2.0,atempo=2.0[a]"
# Standard 1080p, 30fps, Remotion-ready
ffmpeg -i raw-recording.mp4 \
-vf "scale=1920:1080:force_original_aspect_ratio=decrease,pad=1920:1080:(ow-iw)/2:(oh-ih)/2,fps=30" \
-c:v libx264 -crf 18 -preset slow \
-c:a aac -b:a 192k \
-movflags faststart \
public/demos/demo.mp4
# From iPhone/iPad recording (usually 60fps, variable resolution)
ffmpeg -i iphone-recording.mov \
-vf "scale=1920:-2,fps=30" \
-c:v libx264 -crf 20 \
-an \
public/demos/mobile-demo.mp4
for f in assets/*.gif; do
ffmpeg -i "$f" -movflags faststart -pix_fmt yuv420p \
-vf "scale=trunc(iw/2)*2:trunc(ih/2)*2" \
"public/demos/$(basename "$f" .gif).mp4"
done
Add scale filter: -vf "scale=trunc(iw/2)*2:trunc(ih/2)*2"
Use: -movflags faststart -pix_fmt yuv420p -c:v libx264
Use filter_complex with atempo: -filter_complex "[0:v]setpts=0.5*PTS[v];[0:a]atempo=2.0[a]"
Increase CRF (23→28) or reduce resolution
| Use Case | CRF | Preset | Notes |
|---|---|---|---|
| Archive/Master | 18 | slow | Best quality, large files |
| Production | 20-22 | medium | Good balance |
| Web/Preview | 23-25 | fast | Smaller files |
| Draft/Quick | 28+ | veryfast | Fast encoding |
After Remotion renders your video (typically to out/video.mp4), use FFmpeg to optimize for each distribution platform.
Remotion render (master) FFmpeg optimization Platform upload
↓ ↓ ↓
out/video.mp4 ────────→ out/video-youtube.mp4 ───→ YouTube
────────→ out/video-twitter.mp4 ───→ Twitter/X
────────→ out/video-linkedin.mp4 ───→ LinkedIn
────────→ out/video-web.mp4 ───→ Website embed
YouTube re-encodes everything, so upload high quality:
# YouTube optimized (1080p)
ffmpeg -i out/video.mp4 \
Make data-driven prioritization decisions faster
Draft PRDs, status updates, and stakeholder presentations
Example
Create executive summary of Q3 roadmap, monthly progress report, feature launch announcement
Save 3-5 hours/week on communication overhead
Prerequisites
Time Estimate
30-60 minutes to see productivity improvements
Steps
Common Pitfalls
✓ Do
✗ Don't
💡 Pro Tips
✓ Use when
Use for user story writing, competitive research, roadmap prioritization, stakeholder communication, and PRD drafting. Best for reducing repetitive documentation and research work.
✗ Avoid when
Avoid for strategic product vision (requires deep customer empathy), pricing decisions (needs market and financial expertise), or when face-to-face customer discovery is more valuable than speed.
mattpocock/skills
parcadei/continuous-claude-v3
cursor/plugins
ailabs-393/ai-labs-claude-skills
pproenca/dot-skills
mattpocock/skills
Registry listing for ffmpeg matched our evaluation — installs cleanly and behaves as described in the markdown.
ffmpeg has been reliable in day-to-day use. Documentation quality is above average for community skills.
ffmpeg is among the better-maintained entries we tried; worth keeping pinned for repeat workflows.
ffmpeg reduced setup friction for our internal harness; good balance of opinion and flexibility.
Solid pick for teams standardizing on skills: ffmpeg is focused, and the summary matches what you get after install.
I recommend ffmpeg for anyone iterating fast on agent tooling; clear intent and a small, reviewable surface area.
We added ffmpeg from the explainx registry; install was straightforward and the SKILL.md answered most questions upfront.
ffmpeg is among the better-maintained entries we tried; worth keeping pinned for repeat workflows.
Useful defaults in ffmpeg — fewer surprises than typical one-off scripts, and it plays nicely with `npx skills` flows.
I recommend ffmpeg for anyone iterating fast on agent tooling; clear intent and a small, reviewable surface area.
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