ffbatch specification

spec.md

ffbatch

features

• edit videos inplace
• batch processing
• conditionals
• simple ffprobe access
• file extension changing

usage

• --if [EXPR]: if [EXPR] is true, run subsequent processing
• {file.webm:v0.stream.width}: equivalent to ffprobe -v error -select_streams v:0 -show_entries stream=width -of "csv=s=*:p=0" file.webm
• automatic quotation of filenames with spaces
• batch: ffbatch -i {x.webm y.webm z.webm} {one.mp3 two.mp3 three.mp3} runs command 3 times with bracketed options
• file extension changing: ffbatch -i {*.webm} {mp3(*)}: outputs * as mp3 e.g. x.mp3, y.mp3, z.mp3

example

If video length is longer than 1 minute, convert file to mp3

ffbatch --if {*:v0.format.duration > 60} -i {*} {mp3(*)}