Reel Export
Turn any horizontal or square motion video into a 1080 x 1920 Instagram Reel or TikTok...
Install
npx skills add charlie947/motion-graphics-skills --skill reel-export -g -a claude-code -y- Repository
- charlie947/motion-graphics-skills519
- Category
- Media
- Updated
- 24d ago
- License
- MIT
- Context cost
- Lightabout 704 tokens
- Runs scripts
- No, instructions only
What it does
Turn any horizontal or square motion video into a 1080 x 1920 Instagram Reel or TikTok that uploads cleanly. Headline and logos inside the safe zone, H.264, yuv420p, limited colour range, bt709, a silent audio track when there is no sound, and an ffprobe check before upload. Use when someone says "make this a reel", "vertical version", "export for Instagram", "TikTok version", "9:16 cut", "reel export" or has a 16:9 or 4:5 video that needs to go on a vertical feed.
Reel export
Most motion is built wide. This turns it into a vertical file with a hook on top that the apps accept without washing out the colours.
Before you start: read brand.md and MOTION.md if they exist. If not, run brand-intake first, or ask for hex codes, a font and a logo file. Never call a result on-brand without them.
Step 1: Ask for four things, then wait
- The video. Any MP4, any size.
- The headline, two short lines, word for word. It is the hook people read with the sound off.
- Logos, as attached files, if the video names a product or company.
- The background colour around the video. Default: near-black
#0B0B0F.
Step 2: The safe zone
The app draws its own buttons, caption and profile over the edges of a Reel. Keep every word and logo:
- between y 360 and y 1420 (nothing in the bottom 500px)
- out of the right 120px
Put the headline at the top of that zone, then the video under it. A 16:9 video scaled to 1080 wide is 608 tall, so it sits well at y 660.
Step 3: Build the overlay, then encode
Build a transparent 1080 x 1920 overlay.png in HTML with the headline and any logos, and screenshot it. Text you can style beats text burned in by ffmpeg. Then:
ffmpeg -y -i in.mp4 -loop 1 -i overlay.png -f lavfi -i anullsrc=r=48000:cl=stereo -filter_complex "color=c=0x0B0B0F:s=1080x1920:r=30[bg];[0:v]fps=30,scale=1080:-2,setsar=1[v];[bg][v]overlay=0:660:shortest=1[o];[o][1:v]overlay=0:0:shortest=1,scale=out_color_matrix=bt709:out_range=tv,format=yuv420p[out]" -map "[out]" -map 2:a -shortest -c:v libx264 -profile:v high -crf 18 -pix_fmt yuv420p -color_range tv -colorspace bt709 -color_primaries bt709 -color_trc bt709 -c:a aac -b:a 128k -movflags +faststart reel.mp4
This adds a silent AAC track. If the video has its own sound, swap -map 2:a for -map 0:a.
