ffmpeg-command-syntax
Installation
SKILL.md
CRITICAL: FFmpeg Option Ordering Rules
The most common FFmpeg mistake is putting options in the wrong place. Options in FFmpeg are position-sensitive and apply to the NEXT file specified after them.
The Golden Rule
ffmpeg [global_options] {[input_options] -i input}... {[output_options] output}...
Key principle: Options are applied to the next file. They are reset between files.