c-ffmpeg

Installation
SKILL.md

FFmpeg — Creative Studio Video Engine

FFmpeg powers every video operation: compositing, chroma key, layout assembly, audio mixing, trimming, and delivery verification.

Non-Negotiable Rules

1. Chroma key color is always 0x00FF00. Never sample green from the video. Never trust a b-roll plan's color value. Always use #00FF00 two-pass:

colorkey=0x00FF00:0.25:0.05,colorkey=0x00FF00:0.40:0.01

chromakey filter is NOT available in this build — always use colorkey.

2. Never crop-and-stretch the avatar. That distorts the aspect ratio.

  • WRONG: crop=1920:880,scale=1920:1080
  • RIGHT: scale=2208:1242,crop=1920:1080:144:0 (1.15x zoom, then crop — preserves ratio)
Installs
4
First Seen
May 5, 2026