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video-editor Professional video post-production using FFmpeg — color grading, audio design, kinetic typography, transitions, motion effects, captions, brand overlays, and platform-optimized export for promotional and marketing videos. Use when editing videos, adding captions, color grading, or creating promo content.
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Zipをダウンロード ダウンロード中... name video-editor description Professional video post-production using FFmpeg — color grading, audio design, kinetic typography, transitions, motion effects, captions, brand overlays, and platform-optimized export for promotional and marketing videos. Use when editing videos, adding captions, color grading, or creating promo content. domain content author oyi77 license Apache-2.0 subdomain content-creation tags ["content-creation","video-production","ffmpeg","post-production","color-grading","promotional-video","captions","audio-design"] version 1.0.0
Video Editor — Professional Post-Production
Companion skills: remotion · video-gen · faceless-youtube
When to Use
Trigger phrases:
"edit this video" · "add captions" · "color grade" · "make a promo video"
"merge clips" · "add music" · "watermark" · "optimize for instagram"
"speed ramp" · "slow motion" · "lower third" · "add transitions"
Use cases:
Post-production editing of AI-generated or recorded footage
Adding captions/subtitles with brand styling
Color grading and visual correction
Audio mixing, ducking, and loudness normalization
Creating promotional videos from raw clips
Platform-specific export (YouTube, TikTok, Instagram, LinkedIn)
Batch processing multiple videos
Thumbnail extraction and creation
When NOT to use:
When creating video from scratch with React (use remotion )
When generating video from AI models (use video-gen )
When the task requires real-time editing (use a NLE like DaVinci Resolve)
Overview
FFmpeg is the industry-standard tool for video post-production. This skill covers professional-grade filter graphs for promotional videos: color grading, audio design, kinetic text, transitions, motion effects, and multi-platform export.
Process
Ingest — Analyze source footage (duration, resolution, codec, audio levels)Assembly — Trim, arrange, and concatenate clipsColor grade — Apply LUTs, curves, contrast, and color harmonyAudio design — Mix music, voiceover, SFX; apply ducking and normalizationAdd text — Captions, lower thirds, title cards, CTAsAdd brand — Logo overlay, watermark, consistent color schemeTransitions — Crossfade, wipe, or zoom between scenesMotion effects — Speed ramps, slow-mo, Ken Burns, motion blur
Export — Master file + platform-specific optimized versions
Thumbnail — Extract best frame, add text overlay
Promo Video Structure Professional promotional videos follow a proven narrative arc:
┌─────────────────────────────────────────────────────────────────┐
│ HOOK (0-3s) │ Grab attention immediately │
│ Bold text / motion │ "Stop scrolling" moment │
├───────────────────────┼─────────────────────────────────────────┤
│ PROBLEM (3-8s) │ State the pain point │
│ Text + B-roll │ "You're wasting hours on..." │
├───────────────────────┼─────────────────────────────────────────┤
│ SOLUTION (8-20s) │ Show your product/service │
│ Screen recording / │ "Here's how X fixes this" │
│ product demo │ │
├───────────────────────┼─────────────────────────────────────────┤
│ PROOF (20-30s) │ Social proof, metrics, testimonials │
│ Stats / quotes │ "10K+ users" / "4.9★ rating" │
├───────────────────────┼─────────────────────────────────────────┤
│ CTA (30-45s) │ Clear call to action │
│ Bold text + logo │ "Try free today" + URL │
└─────────────────────────────────────────────────────────────────┘
Timing Guide Section Duration Frame Count (30fps) Hook 2-3s 60-90 Problem 3-5s 90-150 Solution 10-15s 300-450 Proof 5-8s 150-240 CTA 3-5s 90-150 Total 25-40s 750-1200
Professional FFmpeg Filter Graphs
1. Color Grading
Apply LUT (Look-Up Table)
ffmpeg -i input.mp4 -vf "lut3d=file='cinematic.cube'" -c:a copy graded.mp4
ffmpeg -i input.mp4 -vf "
[0:v]split[orig][lut];
[lut]lut3d=file='cinematic.cube'[graded];
[orig][graded]blend=all_expr='A*(1-0.5)+B*0.5'
" -c:a copy graded-subtle.mp4
Manual Color Correction
ffmpeg -i input.mp4 -vf "
curves=lighter=0/0 0.25/0.22 0.5/0.52 0.75/0.78 1/1:
green=0/0 0.5/0.48 1/1:
blue=0/0 0.5/0.47 1/1,
eq=brightness=0.03:contrast=1.1:saturation=1.15
" -c:a copy color-corrected.mp4
Cinematic Teal & Orange ffmpeg -i input.mp4 -vf "
curves=
r='0/0.05 0.3/0.25 0.5/0.55 0.7/0.75 1/0.9':
g='0/0.03 0.3/0.2 0.5/0.48 0.7/0.7 1/0.85':
b='0/0.1 0.3/0.3 0.5/0.45 0.7/0.6 1/0.7',
eq=saturation=1.3:contrast=1.15,
unsharp=5:5:0.8
" -c:a copy teal-orange.mp4
High-Contrast Promo Look ffmpeg -i input.mp4 -vf "
eq=contrast=1.3:brightness=0.02:saturation=1.2,
curves=master='0/0 0.15/0.05 0.5/0.55 0.85/0.95 1/1',
unsharp=5:5:1.0
" -c:a copy high-contrast-promo.mp4
2. Audio Design
Background Music + Voiceover Mixing
ffmpeg -i voiceover.mp4 -i music.mp3 -filter_complex "
[0:a]volume=1.0[vo];
[1:a]volume=0.15[music];
[vo][music]amix=inputs=2:duration=shortest:dropout_transition=3
" -c:v copy -c:a aac -b:a 192k mixed.mp4
Audio Ducking (Auto-Lower Music During Speech)
ffmpeg -i voiceover.mp4 -i music.mp3 -filter_complex "
[1:a][0:a]sidechaincompress=threshold=0.02:ratio=10:attack=200:release=1000[ducked];
[0:a]volume=1.0[vo];
[vo][ducked]amix=inputs=2:duration=shortest
" -c:v copy -c:a aac ducked-mix.mp4
Loudness Normalization (EBU R128)
ffmpeg -i input.mp4 -af "loudnorm=I=-14:TP=-1.5:LRA=11" -c:v copy normalized.mp4
ffmpeg -i input.mp4 -af "loudnorm=I=-14:TP=-1.5:LRA=11:print_format=json" -f null - 2>&1 | tail -12
ffmpeg -i input.mp4 -af "loudnorm=I=-14:TP=-1.5:LRA=11:measured_I=-20:measured_TP=-3:measured_LRA=8" -c:v copy normalized.mp4
Fade In/Out
ffmpeg -i input.mp4 -af "afade=t=in:st=0:d=0.5,afade=t=out:st=29:d=1" -c:v copy audio-faded.mp4
3. Text & Captions
Animated Title Card
ffmpeg -i input.mp4 -vf "
drawtext=text='YOUR BRAND':
fontfile=fonts/Bold.ttf:
fontsize=120:
fontcolor=white:
borderw=3:
bordercolor=black@0.3:
x=(w-text_w)/2:
y=(h-text_h)/2:
enable='between(t,0,3)':
alpha='if(lt(t,0.5),t*2,if(gt(t,2.5),(3-t)*2,1))'
" -c:a copy title-card.mp4
Lower Third (Name + Title)
ffmpeg -i input.mp4 -vf "
drawbox=x=0:y=ih-160:w=iw:h=160:color=black@0.7:t=fill:
enable='between(t,2,8)',
drawtext=text='John Smith':
fontfile=fonts/Bold.ttf:fontsize=48:fontcolor=white:
x=60:y=ih-130:
enable='between(t,2,8)':
alpha='if(lt(t,2.5),(t-2)*2,if(gt(t,7.5),(8-t)*2,1))',
drawtext=text='CEO, Company':
fontfile=fonts/Regular.ttf:fontsize=32:fontcolor=white@0.8:
x=60:y=ih-80:
enable='between(t,2,8)':
alpha='if(lt(t,2.5),(t-2)*2,if(gt(t,7.5),(8-t)*2,1))'
" -c:a copy lower-third.mp4
Styled Subtitles (Brand Colors)
ffmpeg -i input.mp4 -vf "
subtitles=captions.srt:
force_style='
FontName=Inter,
FontSize=28,
PrimaryColour=&H00FFFFFF,
OutlineColour=&H00000000,
BackColour=&H80000000,
Bold=1,
Outline=2,
Shadow=1,
MarginV=60,
Alignment=2
'
" -c:a copy captioned.mp4
Word-by-Word Highlight Captions (ASS Format)
cat > captions.ass << 'EOF'
[Script Info]
ScriptType: v4.00+
PlayResX: 1920
PlayResY: 1080
[V4+ Styles]
Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour, Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, Encoding
Style: Default,Inter,48,&H00FFFFFF,&H0000FFFF,&H00000000,&H80000000,1,0,0,0,100,100,0,0,1,3,1,2,40,40,60,1
Style: Highlight,Inter,48,&H0000FFFF,&H0000FFFF,&H00000000,&H80000000,1,0,0,0,100,100,0,0,1,3,1,2,40,40,60,1
[Events]
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
Dialogue: 0,0:00:01.00,0:00:03.00,Default,,0,0,0,,{\k50}This {\k30}is {\k40}your {\k50}brand
EOF
ffmpeg -i input.mp4 -vf "ass=captions.ass" -c:a copy word-highlight.mp4
4. Transitions
Crossfade Between Clips
ffmpeg -i clip1.mp4 -i clip2.mp4 -filter_complex "
[0:v]fade=t=out:st=4:d=1[v0];
[1:v]fade=t=in:st=0:d=1[v1];
[v0][v1]concat=n=2:v=1:a=0[outv];
[0:a]afade=t=out:st=4:d=1[a0];
[1:a]afade=t=in:st=0:d=1[a1];
[a0][a1]concat=n=2:v=0:a=1[outa]
" -map "[outv]" -map "[outa]" crossfade.mp4
Wipe Transition
ffmpeg -i clip1.mp4 -i clip2.mp4 -filter_complex "
[0:v][1:v]xfade=transition=wipeleft:duration=1:offset=4
" -c:a copy wipe-transition.mp4
Available xfade Transitions Transition Name Effect fadefadeCrossfade wipeleftwipeleftHorizontal wipe L→R wiperightwiperightHorizontal wipe R→L wipeupwipeupVertical wipe bottom→top wipedownwipedownVertical wipe top→bottom slideleftslideleftSlide L→R sliderightsliderightSlide R→L circleopencircleopenCircle open reveal circleclosecirclecloseCircle close dissolvedissolveDissolve pixelizepixelizePixelize transition diagtldiagtlDiagonal from top-left
5. Motion Effects
Speed Ramp (Slow-Mo → Normal)
ffmpeg -i input.mp4 -filter_complex "
[0:v]setpts='if(between(T,5,8),PTS*2,PTS)'[v];
[0:a]atempo='if(between(T,5,8),0.5,1.0)'[a]
" -map "[v]" -map "[a]" speed-ramp.mp4
Ken Burns (Slow Zoom on Still Image)
ffmpeg -loop 1 -i product.jpg -t 10 -vf "
zoompan=z='min(zoom+0.001,1.5)':
x='iw/2-(iw/zoom/2)':
y='ih/2-(ih/zoom/2)':
d=300:
s=1920x1080:fps=30
" -c:v libx264 -pix_fmt yuv420p ken-burns.mp4
Motion Blur (For Fast Movements) ffmpeg -i input.mp4 -vf "
tmix=frames=4:weights='1 1 1 1'
" -c:a copy motion-blur.mp4
6. Brand Elements
Logo Overlay (Corner)
ffmpeg -i input.mp4 -i logo.png -filter_complex "
[1:v]scale=150:-1,format=rgba,colorchannelmixer=aa=0.3[logo];
[0:v][logo]overlay=W-w-30:H-h-30
" -c:a copy watermarked.mp4
Animated Logo Intro (Logo + Fade)
ffmpeg -i input.mp4 -i logo.png -filter_complex "
[1:v]scale=300:-1,format=rgba[logo];
[0:v][logo]overlay=(W-w)/2:(H-h)/2:
enable='between(t,0,3)':
format=auto
" -c:a copy logo-intro.mp4
7. Multi-Clip Assembly
Full Promo Assembly Pipeline
ffmpeg -i raw_hook.mp4 -t 3 -vf "eq=contrast=1.2:saturation=1.1" -af "loudnorm=I=-14" -c:v libx264 -crf 18 hook.mp4
ffmpeg -i raw_problem.mp4 -ss 2 -t 5 -vf "eq=contrast=1.2:saturation=1.1" -af "loudnorm=I=-14" -c:v libx264 -crf 18 problem.mp4
ffmpeg -i raw_solution.mp4 -ss 0 -t 12 -vf "eq=contrast=1.2:saturation=1.1" -af "loudnorm=I=-14" -c:v libx264 -crf 18 solution.mp4
ffmpeg -i raw_proof.mp4 -ss 5 -t 8 -vf "eq=contrast=1.2:saturation=1.1" -af "loudnorm=I=-14" -c:v libx264 -crf 18 proof.mp4
ffmpeg -i raw_cta.mp4 -t 4 -vf "eq=contrast=1.2:saturation=1.1" -af "loudnorm=I=-14" -c:v libx264 -crf 18 cta.mp4
cat > clips.txt << EOF
file 'hook.mp4'
file 'problem.mp4'
file 'solution.mp4'
file 'proof.mp4'
file 'cta.mp4'
EOF
ffmpeg -i hook.mp4 -i problem.mp4 -i solution.mp4 -i proof.mp4 -i cta.mp4 -filter_complex "
[0:v][1:v]xfade=transition=fade:duration=0.5:offset=2.5[v01];
[v01][2:v]xfade=transition=wipeleft:duration=0.5:offset=7[v012];
[v012][3:v]xfade=transition=fade:duration=0.5:offset=18.5[v0123];
[v0123][4:v]xfade=transition=fade:duration=0.5:offset=26[vout];
[0:a][1:a]acrossfade=d=0.5[a01];
[a01][2:a]acrossfade=d=0.5[a012];
[a012][3:a]acrossfade=d=0.5[a0123];
[a0123][4:a]acrossfade=d=0.5[aout]
" -map "[vout]" -map "[aout]" -c:v libx264 -crf 18 -c:a aac -b:a 192k promo-assembled.mp4
ffmpeg -i promo-assembled.mp4 -i bg-music.mp3 -filter_complex "
[0:a]volume=1.0[vo];
[1:a]volume=0.12,afade=t=out:st=30:d=3[music];
[music][vo]sidechaincompress=threshold=0.02:ratio=12:attack=150:release=800[ducked];
[vo][ducked]amix=inputs=2:duration=shortest:dropout_transition=2,
loudnorm=I=-14:TP=-1.5:LRA=11
" -c:v copy -c:a aac -b:a 192k promo-with-music.mp4
ffmpeg -i promo-with-music.mp4 -i logo.png -filter_complex "
[1:v]scale=120:-1,format=rgba,colorchannelmixer=aa=0.25[logo];
[0:v][logo]overlay=W-w-25:H-h-25
" -c:a copy promo-final-master.mp4
Batch Processing
Export for All Platforms #!/bin/bash
MASTER="promo-final-master.mp4"
OUTDIR="exports"
mkdir -p "$OUTDIR "
ffmpeg -i "$MASTER " -vf "scale=1920:1080" -c:v libx264 -preset slow -crf 18 -c:a aac -b:a 192k "$OUTDIR /youtube.mp4"
ffmpeg -i "$MASTER " -vf "scale=1080:1920:force_original_aspect_ratio=decrease,pad=1080:1920:(ow-iw)/2:(oh-ih)/2:white" -c:v libx264 -preset slow -crf 22 -c:a aac -b:a 128k -t 90 "$OUTDIR /instagram-reels.mp4"
ffmpeg -i "$MASTER " -vf "scale=1080:1920:force_original_aspect_ratio=decrease,pad=1080:1920:(ow-iw)/2:(oh-ih)/2:black" -c:v libx264 -preset slow -crf 22 -c:a aac -b:a 128k -t 600 "$OUTDIR /tiktok.mp4"
ffmpeg -i "$MASTER " -vf "scale=1080:1080:force_original_aspect_ratio=decrease,pad=1080:1080:(ow-iw)/2:(oh-ih)/2:white" -c:v libx264 -preset slow -crf 22 -c:a aac -b:a 128k -t 60 "$OUTDIR /instagram-feed.mp4"
ffmpeg -i "$MASTER " -vf "scale=1920:1080" -c:v libx264 -preset slow -crf 20 -c:a aac -b:a 192k -t 600 "$OUTDIR /linkedin.mp4"
ffmpeg -i "$MASTER " -vf "scale=1280:720" -c:v libx264 -preset slow -crf 22 -c:a aac -b:a 128k -t 140 "$OUTDIR /twitter.mp4"
ffmpeg -i "$MASTER " -ss 00:00:03 -vframes 1 -q:v 2 "$OUTDIR /thumbnail.jpg"
echo "✅ Exported to $OUTDIR /"
ls -lh "$OUTDIR /"
Platform Specifications Platform Resolution Aspect Max Length Codec CRF Audio YouTube 1920×1080 16:9 Unlimited H.264 18 AAC 192k Instagram Reels 1080×1920 9:16 90s H.264 22 AAC 128k Instagram Feed 1080×1080 1:1 60s H.264 22 AAC 128k TikTok 1080×1920 9:16 10min H.264 22 AAC 128k LinkedIn 1920×1080 16:9 10min H.264 20 AAC 192k X / Twitter 1280×720 16:9 2:20 H.264 22 AAC 128k Facebook 1280×720 16:9 240min H.264 22 AAC 128k
Color Grading Presets
Cinematic (Teal & Orange) -vf "curves=r='0/0.05 0.3/0.25 0.5/0.55 0.7/0.75 1/0.9':g='0/0.03 0.3/0.2 0.5/0.48 0.7/0.7 1/0.85':b='0/0.1 0.3/0.3 0.5/0.45 0.7/0.6 1/0.7',eq=saturation=1.3:contrast=1.15"
Clean Corporate (Bright, High Contrast) -vf "eq=brightness=0.03:contrast=1.2:saturation=1.1,curves=master='0/0 0.15/0.08 0.5/0.55 0.85/0.95 1/1'"
Moody Dark (Low Key) -vf "eq=brightness=-0.05:contrast=1.3:saturation=0.9,curves=master='0/0 0.2/0.1 0.5/0.4 0.8/0.75 1/0.9'"
Vibrant Social Media (Punchy Colors) -vf "eq=brightness=0.02:contrast=1.25:saturation=1.4,unsharp=5:5:0.8"
Desaturated Premium (Muted, Elegant) -vf "eq=saturation=0.7:contrast=1.15,curves=master='0/0.02 0.3/0.28 0.5/0.52 0.7/0.73 1/0.95'"
Anti-Rationalization Table Rationalization Reality "Just concat the clips" Raw concatenation has jarring cuts. Use xfade transitions for professional flow. "Skip color grading" Ungraded footage looks amateur. Even subtle correction (contrast +5%, saturation +10%) transforms quality. "Audio doesn't matter" Audio is 50% of perceived quality. Normalize loudness, mix music properly, add SFX. "Burn-in captions are fine" Unstyled captions look auto-generated. Use brand colors, proper fonts, and word-by-word highlighting. "One export for all platforms" Each platform has different specs. A 16:9 video letterboxed on 9:16 looks terrible. Export per platform. "Skip the thumbnail" Thumbnail is the #1 click driver. Extract the best frame, add bold text overlay. "CRF 23 is good enough" For promotional content, use CRF 18. Quality is visible, especially on large screens. "Audio ducking is optional" Without ducking, music drowns voiceover. Professional promos always duck music during speech.
Verification 